A Comprehensive Guide About MLS Laser Therapy & Photobiomodulation

MLS laser therapy combined with photobiomodulation offers a non-invasive solution for pain management and improved healing.

Introduction: A Deep Dive into the Science and Clinical Application of Advanced Laser Therapy

Welcome to this comprehensive educational post, where we embark on a detailed journey into the fascinating world of photobiomodulation (PBM), a groundbreaking field reshaping our approach to healing, pain management, and regenerative medicine. My name is Dr. Jimenez, and as a practitioner with dual credentials as a Doctor of Chiropractic (DC) and a Family Nurse Practitioner (FNP-APRN), I have dedicated my career to integrating the most effective, evidence-based therapies to optimize patient outcomes. Today, I am thrilled to present a narrative exploration of a topic I am deeply passionate about: the science and clinical application of Multiwave Locked System (MLS) Laser Therapy. This post is designed to serve as a definitive resource, translating complex scientific principles into a clear narrative format accessible to fellow healthcare professionals, researchers, and patients alike. We will move beyond the surface-level discussions often associated with “laser therapy” and delve into the intricate physiological mechanisms, the latest research findings from leading global experts, and the practical applications that are revolutionizing patient care.

Our exploration begins by establishing a foundational understanding of laser physics as it applies to biological tissue. We will demystify the core concepts that govern how light energy interacts with the human body, breaking down the four key phenomena: reflection, transmission, scattering, and absorption. This fundamental knowledge is crucial, as it underpins why certain laser parameters are more effective than others. We will then systematically dissect the four pillars that define any therapeutic laser system: the photon source, the power output (and the distinction between Class 3 and Class 4 lasers), the emission modality (continuous-wave vs. pulsed), and, most critically, the wavelength. Each of these components plays a pivotal role in determining the laser’s therapeutic potential, and we will explore them in great detail.

The centerpiece of our discussion will be the patented Multiwave Locked System (MLS) technology. I will explain, from a scientific and clinical standpoint, what makes this system unique. We’ll unpack the term “Multiwave Locked System,” revealing how the synchronized emission of two specific wavelengths—808 nm (continuous wave) and 905 nm (pulsed)—creates a powerful, synergistic effect that optimizes both anti-inflammatory and analgesic outcomes. A significant portion of this post will be dedicated to explaining the profound safety and efficacy implications of this synchronized, pulsed delivery. We will meticulously examine how the MLS pulse enables delivery of high-peak-power energy deep into tissues without exceeding the thermal damage threshold, thereby combining the clinical efficacy of a high-power Class 4 laser with the unparalleled safety profile of a Class 3 device.

We will then transition from theory to practice, thoroughly examining the cellular mechanism of action of photobiomodulation. Using the elegant analogy of “human photosynthesis,” we will explore how specific wavelengths of light are absorbed by cellular chromophores, particularly cytochrome c oxidase within the mitochondria. This interaction triggers a cascade of beneficial physiological responses, including a significant increase in ATP (adenosine triphosphate) production, modulation of inflammatory mediators, and enhanced cellular repair processes. We will elaborate on the trifecta of effects—photochemical, photothermal, and photomechanical—and explain how each contributes to the observed clinical outcomes, such as pain relief, modulation of inflammation (not suppression), and accelerated tissue healing.

Finally, we will bridge the gap between bench science and bedside application by reviewing compelling clinical evidence and real-world data. This includes a close look at extensive registry data from DataBiologics, a respected third-party outcomes-tracking platform. These findings, gathered from thousands of patient cases over 24 months, provide robust, unbiased evidence of the synergistic benefits of combining MLS Laser Therapy with orthobiologic procedures. The data clearly demonstrate superior outcomes in pain reduction and functional improvement when MLS is integrated into the treatment paradigm. We will also showcase a variety of clinical indications, from musculoskeletal conditions like plantar fasciitis and osteoarthritis to complex cases such as post-surgical wound healing and neuropathic pain, illustrating the broad therapeutic reach of this advanced technology. This post aims to be your definitive guide, equipping you to understand and appreciate the profound impact of modern, evidence-based photobiomodulation on the future of healthcare.

The Dawn of a New Era in Regenerative Medicine

I want to extend my heartfelt congratulations to Andrea Molinari and the entire team at Apex Biologix on the completion of this state-of-the-art educational facility. Having the opportunity to present as part of this inaugural class is a true honor. From the moment I arrived, the reception, the facility itself, and the palpable energy have been nothing short of exceptional. But beyond the impressive infrastructure, what truly matters is the quality and depth of the content we will explore together, and I am thrilled to contribute to this high-level educational experience.

I also want to express my gratitude for the invitation to participate in this weekend immersion focused on cutting-edge technologies. My colleagues at Cutting Edge Laser Technologies and I have dedicated the past 25 years to a singular mission: advancing the science and clinical application of photobiomodulation (PBM). Our focus has been unwavering, aimed at integrating this powerful modality into the core of both regenerative medicine and pain management.

When we talk about photobiomodulation, we often encounter a variety of terms in the clinical and public spheres—laser therapy, cold laser, high-power laser, and so on. One of my primary goals today is to bring clarity to this terminology, to demystify the science, and to provide you with a solid, evidence-based understanding of what photobiomodulation is, how it works, and how it can profoundly benefit your patients.

Later in this educational post, I will be referencing insights from my esteemed colleague, Pat Trubanell, our Director of Customer Success and Clinical Support, who masterfully breaks down the core principles of laser therapy, with a special focus on the unique attributes of MLS Laser Therapy. For those attending our live sessions, we will have the invaluable opportunity to apply hands-on training in a dedicated laser room, where we can experience the MLS robotic therapy laser firsthand.

I am also delighted to mention the presence and contribution of Dr. Scott Sigman, the founder and Chief Medical Officer of OrthoLaser. Dr. Sigman is a true pioneer in the clinical application of photobiomodulation within sports medicine and regenerative medicine. His work has been instrumental in shaping our understanding of this field, and his insights will be woven throughout our discussion.

We are living in an incredibly exciting time for regenerative medicine. For the past decade or so, the field has largely operated in distinct silos. On one side, we had energy-based devices like laser and shockwave therapy. On the other hand, we had orthobiologics. However, the last several years have marked a paradigm shift. We are witnessing a significant and powerful merger of these two worlds. A growing body of clear, compelling evidence demonstrates that combining energy devices with orthobiologics produces a positive synergistic effect.

This integration signifies a fundamental evolution in our therapeutic philosophy. We are moving away from a model focused solely on managing symptoms and pain. Instead, we are now concentrating on optimizing cellular health and accelerating recovery, starting at the most fundamental level: enhancing mitochondrial activity. This is the new frontier, a more holistic and biologically sound approach to healing. Our work in this space is not about simply generating revenue; it’s about fundamentally improving patient outcomes. While integrating advanced modalities like MLS Laser Therapy can certainly be a profitable addition to a practice, the primary motivation for every clinician I know who adopts this technology is to provide superior care, whether it’s preparing a patient pre-operatively, enhancing the effects of an orthobiologic injection post-procedure, or managing a chronic pain condition. The goal is, and always will be, to help patients heal more effectively.

With that foundation laid, let’s begin our deep dive into the science. I want to start by building a solid understanding of the key concepts of laser therapy, because whether you are a seasoned expert or completely new to the field—perhaps your only exposure to lasers is from James Bond movies or Star Trek—establishing a common language and a shared set of principles is essential. My goal is to bridge that gap and firmly ground our discussion in the therapeutic application of light.

Understanding Laser-Tissue Interaction: The Four Foundational Pillars

Before we can appreciate the nuances of a sophisticated system like MLS, we must first grasp the fundamental physics of how light energy interacts with biological tissue. When a photon, the fundamental particle of light, enters the body, it can undergo one of four phenomena. This concept is absolutely critical, as the entire goal of therapeutic laser application is to maximize one of these interactions while minimizing the others.

The four phenomena of laser-tissue interaction are:

1. Reflection: This occurs when laser light bounces off the skin’s surface. The photons never penetrate the tissue and therefore have no opportunity to induce a biological effect. Factors like skin color, oiliness, and the angle of the applicator can influence the degree of reflection. A primary goal in technique and technology is to minimize reflection.
2. Transmission: This is when the laser light passes completely through the tissue without being absorbed. While this might seem like a successful penetration, if the photons are not absorbed by the target cells, no energy is transferred, and no therapeutic effect is initiated. It’s like a key passing through a lock without turning it.
3. Scattering: As photons enter tissue, they collide with cellular and extracellular components, causing them to deviate from their original paths. This diffusion of light energy reduces the concentration of photons reaching the intended target depth. While some scattering is unavoidable, excessive scattering diminishes the power density (power per unit area) at the target, thereby weakening the therapeutic stimulus.
4. Absorption: the golden ticket of photobiomodulation. Absorption is the process by which photons transfer their energy to specific molecules within the tissue, known as chromophores. This energy transfer initiates the cascade of biological events that lead to therapeutic outcomes. The success of any laser treatment is directly proportional to the amount of light energy absorbed by the target chromophores at the correct depth.

I will be referring to the foundational concepts of absorption, reflection, transmission, and scattering repeatedly as we explore the specific advantages of MLS technology. The engineering and design of this system are geared entirely toward maximizing cellular-level absorption.

The Four Defining Characteristics of a Therapeutic Laser

To truly understand and evaluate any laser system, we need to break it down into four key characteristics. These are the building blocks that determine its function, safety, and clinical efficacy.

1. The Source: The Origin of the Photons

The “source” refers to the active material within the laser device that, when stimulated or “excited,” emits photons. Different types of lasers use different source materials, which in turn dictate their properties and applications.

• Gas Lasers (e.g., CO2 Lasers): These are commonly used in surgical settings. A CO2 laser emits a wavelength that is highly absorbed by water. When this intense light hits tissue, which is predominantly water, it causes the water molecules to vaporize instantly, creating micro-explosions. This process allows for precise cutting and ablation of tissue with minimal bleeding, making it an excellent surgical tool. However, its properties are not well-suited to the biostimulatory effects we seek in photobiomodulation.
• Diode Lasers: This is the category MLS Laser Therapy belongs to. Diodes are semiconductors, similar to those found in modern electronics. When an electric current passes through the diode’s specific combination of materials (e.g., gallium arsenide), it excites atoms, causing them to emit photons at a very specific wavelength. Diode lasers are efficient, reliable, and can be engineered to produce the precise wavelengths needed for therapeutic applications.

When evaluating a diode laser, the quality and origin of the diodes are paramount. I want to emphasize that 100% of the materials and diodes used in MLS lasers are sourced and manufactured in Italy. In the world of laser engineering and manufacturing, Italy is widely recognized as the upper echelon. Our manufacturing partner, ASA Latticini, is a part of the El.En. Group, a global leader in laser technology. This commitment to quality ensures consistency, reliability, and superior therapeutic outcomes, which are critical yet often overlooked aspects of a medical device.

I am a very visual person, and I rely on analogies to explain complex concepts to both my colleagues and my patients. I ran a clinical practice for a decade, using three MLS robotic lasers, before joining the Cutting Edge team, and I’ve found that simple, relatable visuals are incredibly powerful. Think of the source diode as the heart of the laser—its quality and precision determine the quality of the “lifeblood” (the photons) it pumps out.

2. Power: Understanding Laser Classifications and Their Implications

The second key concept is power, which is measured in watts (W). The power of a laser is a primary determinant of its classification by regulatory bodies like the FDA. There are four main classifications, but for therapeutic purposes, we are almost exclusively concerned with Classes 3 and 4.

• Class 1 and 2 Lasers: These are very low-power devices. Examples include barcode scanners at the grocery store and standard laser pointers. They lack the power to produce any significant therapeutic effect on biological tissue.
• Class 3 Lasers: These are defined as lasers with a power output of up to 0.5 watts (or 500 milliwatts). These lasers have been used therapeutically for decades and are often marketed as “low-level laser therapy” (LLLT) or “cold laser.” The term “cold laser” arose because these devices do not generate a perceptible thermal effect (heat) on the skin. They can be effective, but a major limitation is the time required for treatment. Due to their low power, they require a much longer application time to deliver a therapeutically significant dose of energy (measured in Joules) to the target tissue, especially for deeper pathologies.
• Class 4 Lasers: These are defined as any laser with a power output greater than 0.5 watts. These devices are often marketed as “high-power lasers” or “high-intensity lasers.” The primary advantage of a Class 4 laser is its ability to deliver a therapeutic dose of energy to both superficial and deep tissues in a much shorter period. This efficiency is a significant clinical and practical benefit. However, with high power comes a potential risk: heat generation. If a continuous-wave Class 4 laser is used improperly—for instance, held stationary on one spot for too long—it can rapidly increase tissue temperature beyond the thermal damage threshold (approximately 45°C or 113°F), potentially causing burns or other collateral tissue damage.

This is where the MLS system occupies a uniquely brilliant position. MLS is a Class 4 laser, meaning it has the high power needed for efficient, deep energy delivery. However, due to its patented pulse mechanism, which I will explain in detail shortly, it operates with the safety profile of a Class 3 laser. This gives us the best of both worlds: the clinical efficacy and speed of a Class 4 laser, with the complete safety and peace of mind of a Class 3 laser. From a clinical and liability standpoint, having a technology that eliminates the risk of burning a patient while still delivering powerful results is a monumental advantage. You are not just getting a device; you are getting proven efficacy backed by hundreds of publications and used in over 40,000 systems worldwide, with an unparalleled safety record.

3. Emission Modality: The Rhythm of Light Delivery

The third crucial concept is the emission modality, which describes how the laser energy is delivered over time. There are two primary modes:

• Continuous Wave (CW) Emission: In this mode, the laser source is always on, delivering a constant, uninterrupted stream of photons. It’s like a faucet turned on full blast. Most high-power Class 4 lasers operate in a CW mode. While this allows for rapid energy delivery, it is also what creates the risk of excessive heat accumulation if the handpiece is not kept in constant motion.
• Pulsed Emission: In this mode, the laser source is turned on and off at extremely high frequency, delivering energy in short bursts or pulses. The duration of these pulses is typically measured in nanoseconds (billionths of a second) or microseconds (millionths of a second).

It is vital to distinguish a true pulsed emission from what is sometimes called a “chopped” or “interrupted” continuous wave. In a chopped system, the CW laser source remains on, but a mechanical shutter (such as a spinning mirror or a metal plate) rhythmically blocks and unblocks the beam. This simulates a pulse, but because the source never turns off, there is still a significant thermal component and a risk of heat buildup.

MLS Laser Therapy utilizes a true pulsed emission from the source diode for one of its wavelengths. This is a cornerstone of its safety and efficacy, as we will see. The extremely short duration of the pulses, followed by a period of thermal relaxation during which the tissue can cool, prevents heat accumulation and allows us to deliver very high peak power without risk of thermal damage.

4. Wavelength: The Prescription for Cellular Targeting

Finally, we arrive at wavelength, arguably the most critical parameter for determining a laser’s therapeutic effect. Wavelength, measured in nanometers (nm), determines the color of the light (if it’s in the visible spectrum) and, more importantly, its depth of penetration and its specific target chromophore within the tissue.

You can think of wavelength as the laser’s “prescription.” You choose a specific wavelength based on the therapeutic goal. For example:

• Dermatological lasers often use wavelengths that are highly absorbed by melanin or hemoglobin to treat skin lesions or vascular issues.
• Surgical lasers, as we discussed, use wavelengths strongly absorbed by water to ablate tissue.
• For pain, inflammation, and biostimulation, we look to a specific range known as the “therapeutic window.”

This therapeutic window is generally recognized to be between approximately 600 nm and 1200 nm. Within this range, the absorption of light by competing chromophores like melanin (in the skin) and hemoglobin (in the blood) is relatively low. At the same time, the absorption by water is also minimal. This allows the light to penetrate more deeply into the tissue to reach our primary target: the mitochondria within the cells of muscles, ligaments, nerves, and cartilage.

The MLS system was engineered with this principle at its core. It utilizes two specific wavelengths that fall squarely within this therapeutic window—808 nm and 905 nm—chosen for their distinct, complementary therapeutic properties and optimal penetration depths. Wavelength is the primary determinant of how deep a laser can penetrate. Still, as we’ll discuss, factors like power and emission modality also play a crucial role in determining the true action depth, which is the depth at which a significant biological effect is achieved.

The What and Why of MLS: Unpacking the Patented Technology

Now that we have established the foundational principles, let’s focus on the MLS Laser Therapy system itself. We can break down its uniqueness by examining it through the lens of the four characteristics we just discussed, focusing on the what, why, how, and where of its application.

What Makes MLS Unique? The Multiwave Locked System

The acronym MLS stands for Multiwave Locked System. Let’s break that down:

• Multiwave: This means the system utilizes multiple wavelengths. Specifically, as mentioned, it uses the 808 nm and 905 nm.
• Locked System: This is the “secret sauce” and the subject of the patent. The two wavelengths are not just emitted simultaneously; they are synchronized, or “locked,” in a way that makes them reciprocally reinforcing. They are delivered in a structured, overlapping pulse that creates a more powerful and homogeneous therapeutic effect than if they were delivered separately or unsynchronized.

Many laser devices on the market use multiple wavelengths. However, none have the patented MLS synchronization. The research literature is clear: this synchronized delivery far exceeds the clinical results of non-synchronized multi-wavelength systems.

To explain this, I often use an analogy shared by one of MLS’s inventors. Imagine a typical multi-wavelength laser as a meteor shower. You have many points of light (photons) hitting a large area. You get good coverage, but the distribution is somewhat random, and there are “stones left unturned”—areas between the points of impact that receive less energy.

Now imagine the MLS-synchronized pulse as a meteor. It’s a single, cohesive, powerful unit of energy that strikes the target. This creates a much more homogeneous and potent distribution of energy, ensuring that the entire target tissue volume, not just superficially but also at depth, receives a consistent and powerful therapeutic dose. This spatial overlapping of the synchronized wavelengths is what allows us to treat deep pathologies so effectively.

The Synergy of Emission and Wavelength: The Core of MLS Safety and Efficacy

The true genius of the MLS system lies in how it combines its dual wavelengths with a dual emission modality. This is where the concepts of safety and power converge.

• The 808 nm wavelength is delivered in a continuous wave (CW). This wavelength is excellent for its anti-inflammatory and anti-edemic (swelling-reducing) effects. Continuous delivery provides a steady background therapeutic stimulus.
• The 905 nm wavelength is delivered in a true pulsed emission. This wavelength is exceptional for its analgesic (pain-relieving) effects. The pulsed delivery allows us to reach very high peak power (e.g., 25W, 75W, or even higher, depending on the device) in extremely short bursts (nanoseconds).

These two emissions are then locked and synchronized, as described earlier, and delivered to the tissue simultaneously. This synchronized pulse is what eliminates the risk of thermal damage.

Let’s visualize this on a graph of tissue temperature over time:

1. A standard CW Class 4 laser: If you hold it stationary, the tissue temperature rises steadily and rapidly. It will quickly cross the thermal damage threshold of 45°C, causing a burn.
2. A “chopped” CW laser: The mechanical interruption slows the rate of temperature increase. It will delay the time to reach the thermal damage threshold, but because the source is never off, the temperature will eventually rise and cross that threshold.
3. The MLS Pulsed Laser: The 905 nm pulse delivers a high-energy packet, followed by a period of thermal relaxation during which the tissue fully cools before the next pulse arrives. The temperature oscillates in a very narrow, safe range, never even reaching 43°C.

This is critically important because research has shown that the temperature zone between 43°C and 45°C is not only non-therapeutic but can actually inhibit biological reactions. So, by staying well below this threshold, MLS not only ensures safety but also guarantees that the delivered energy is purely biostimulatory. This reinforces a key takeaway: high power and the sensation of heat do not necessarily equal high performance or a better therapeutic outcome. The intelligent delivery of energy is far more important than brute force alone.

The ability to deliver high peak power via pulsing is also directly correlated with photon density. A higher-peak-power pulse packs more photons into a shorter time interval. This dense cloud of photons has a much greater probability of reaching the target depth and being absorbed by the mitochondria, leading to a more profound biological effect. This combination of peak power (for depth and effect) and low average power (for safety) is the hallmark of the MLS system.

From Physics to Physiology: The Mechanism of Action of Photobiomodulation

We’ve talked a lot about the technology. Now, let’s explore what actually happens inside the body when those photons are absorbed. What is the biological mechanism that turns light into healing?

I often begin this conversation, whether with a patient or a fellow clinician, with a simple question: “Do you believe in photosynthesis?” The answer is always yes. We all learned in school that plants contain chromophores (like chlorophyll) that absorb light energy from the sun and convert it into chemical energy to grow and thrive.

Our bodies are no different. Over millennia of evolution, human and animal cells have developed their own set of chromophores that are exquisitely sensitive to specific wavelengths of light. This is why you feel better on a sunny day than on a cloudy day; your body is responding to the light. Photobiomodulation is simply the science of harnessing this natural process. Scientists far smarter than I have identified the specific wavelengths within the light spectrum that trigger the most potent therapeutic responses and have engineered devices like MLS to deliver those precise wavelengths.

When MLS laser light is absorbed by tissue, it induces three distinct effects: a photochemical effect, a photothermal effect, and a photomechanical effect.

1. The Photochemical Effect: Powering the Cellular Engine

This is the primary mechanism of PBM. The main target chromophore for the wavelengths used in MLS (808 nm and 905 nm) is an enzyme in the mitochondria, cytochrome c oxidase. The mitochondria, as we know, are the “powerhouses” of the cell, responsible for producing adenosine triphosphate (ATP), the universal energy currency of the body.

When a cell is injured or inflamed, mitochondrial function is impaired, and ATP production slows. This leads to a cellular energy crisis, hindering the cell’s ability to repair itself. When photons from the laser are absorbed by cytochrome c oxidase, it acts like a jump-start for the mitochondrial engine. This absorption causes the release of nitric oxide (which can inhibit respiration in stressed cells) and triggers a significant increase in ATP synthesis.

With this renewed supply of energy, the cell can now perform its essential functions more effectively:

• Accelerated Cell Repair and Growth: Cells have the energy needed for DNA and RNA synthesis, protein synthesis, mitosis, and overall regeneration.
• Increased Production of Growth Factors: The energized cells ramp up their production of crucial signaling molecules that orchestrate the healing process.
• Enhanced Healing Cascade: The entire process of tissue repair, from the inflammatory phase to the proliferative and remodeling phases, is accelerated and optimized.

This mitochondrial activation and the subsequent surge in ATP production are the foundational photochemical events that drive all other therapeutic benefits.

2. The Photothermal Effect: Improving Circulation and Drainage

Yes, I’ve spent a lot of time emphasizing that MLS is thermally safe and doesn’t cause burns. However, it does produce a mild and beneficial photothermal effect. The absorption of light energy creates a gentle, localized increase in tissue temperature, staying well within the safe, therapeutic range.

This mild warming has two critical benefits:

• Vasodilation: It causes a widening of blood vessels (arterioles and capillaries) in the treated area. This increases blood flow, delivering more oxygen, nutrients, and immune cells to the site of injury. Think of it as opening up the highways to bring in the construction crews and materials needed for repair.
• Enhanced Lymphatic Drainage: The gentle heat also stimulates the lymphatic system, which helps clear waste products, inflammatory exudate, and excess fluid from tissues. This leads to a rapid reduction in swelling (edema).

Together, these circulatory effects contribute significantly to the potent anti-inflammatory, anti-edema, and analgesic properties of MLS laser therapy.

3. The Photomechanical Effect: A Subtle Wave of Relief

The photomechanical effect is a more subtle, yet important, contributor to the overall therapeutic outcome. It occurs in two ways:

• Downstream of the Photothermal Effect: The rapid, localized change in temperature and fluid dynamics generates a gentle mechanical pressure wave within the tissue, which can help temporarily deform the extracellular matrix (ECM). This can help to break up adhesions and stimulate cellular activity.
• Direct Effect of the Pulse: The high-power, nanosecond pulses at 905 nm create a direct, albeit microscopic, mechanical effect. The rapid delivery of this energy packet generates a tiny photoacoustic wave that propagates through the tissue. This mechanical stimulation is thought to further contribute to pain relief by stimulating mechanoreceptors in the nerves and modulating pain signaling.

This trifecta of photochemical, photothermal, and photomechanical effects works in concert to produce the clinical results we see every day.

Clinical Applications: From Inflammation and Pain to Tissue Repair

Let’s now translate these mechanisms into specific clinical benefits and applications.

Modulating Inflammation, Not Suppressing It

One of the most profound aspects of MLS Laser Therapy, particularly in the context of regenerative medicine, is its role as an inflammation modulator. This is a critical distinction. Many conventional treatments, like NSAIDs or corticosteroid injections, work by suppressing inflammation. While this can provide short-term pain relief, it can also inhibit the body’s natural healing cascade. The acute inflammatory response is an essential first step in tissue repair; it’s the body’s way of calling in the “first responders.”

MLS does not suppress this vital process. Instead, it modulates it. The laser energy stimulates the cells to move through the inflammatory phase more quickly and efficiently. It does this by increasing the production of anti-inflammatory proteins (like cytokines IL-10) while simultaneously decreasing the production of pro-inflammatory cytokines (like IL-1β and TNF-α). This rebalancing act helps resolve inflammation more quickly, reducing pain and swelling without hindering the overall healing process. This is precisely why MLS plays so well in the sandbox with orthobiologics. It supports and enhances the regenerative inflammatory response initiated by a PRP or stem cell injection, rather than working against it.

Targeted Actions for Pain, Muscles, Nerves, and Tissue

The combination of these effects results in a wide range of therapeutic actions:

Therapeutic Effect	Mechanism of Action	Clinical Target
Analgesic (Pain Relief)	Increases endorphin release, blocks pain signals in nerve fibers (A-delta & C fibers), and reduces bradykinin levels.	Nociceptors, nerve endings.
Anti-Inflammatory	Modulates cytokine profile, accelerates phagocytosis, enhances lymphatic drainage, and stabilizes cell membranes.	Inflamed tissues, joints, and bursae.
Muscle Relaxation	Increases ATP for muscle function, improves blood flow to wash out metabolic waste.	Muscle spasms, trigger points, contractures.
Nerve Regeneration	Accelerates nerve cell reconnection, stimulates axonal sprouting, and increases production of nerve growth factors.	Damaged peripheral nerves, neuropathic pain.
Accelerated Tissue Repair	Increases fibroblast activity and collagen production, promotes angiogenesis (new blood vessel formation).	Wounds, ulcers, post-surgical sites, damaged tendons, and ligaments.
This versatility makes MLS an invaluable tool for a vast array of clinical indications, including:

• Musculoskeletal Conditions: Tendinopathies (tendinitis/tendinosis), bursitis, plantar fasciitis, osteoarthritis, back and neck pain, muscle strains, ligament sprains.
• Post-Surgical Healing: Reducing pain, swelling, and scarring after orthopedic or other surgeries.
• Wound Care: Accelerating the healing of diabetic ulcers, venous stasis ulcers, traumatic wounds, and even burns. Using a laser to heal a burn might sound like an oxymoron. Still, because of the MLS pulse’s non-thermal nature, it is not only safe but also incredibly effective at promoting re-epithelialization and reducing scar formation.
• Neuropathic Pain: The technology is showing incredible promise for conditions like diabetic neuropathy and post-herpetic neuralgia. In the European Union, one of our specific devices, the M-VET, has already received MDR clearance for the treatment of neuropathic pain, and we anticipate similar progress in the United States. This is a new frontier, focusing on the laser’s ability to restore health to the myelin sheath and improve nerve function.

The Practical Advantage: Robotic and Hands-Free Application

Beyond the core technology, the delivery system of many MLS devices offers significant clinical and practical advantages. The robotic applicator, found on our M6 and M8 models, is a prime example. The robot enables a pre-programmed, perfectly consistent scanning motion across the treatment area.

The benefits of this are twofold:

1. Consistent, Homogeneous Dosing: The primary benefit, in my clinical opinion, is the guarantee of consistent energy delivery. Whether I treat your elbow today or my technician treats it next week, the robot ensures the same dose is delivered in the same way, every single time. This removes the variable of operator dependency. When treating manually with a scanning motion, it’s impossible for a human to maintain a perfectly consistent speed and distance, leading to “hot spots” and “cold spots” in the treatment area. The robot eliminates this, ensuring a truly homogeneous dose.
2. Workflow Efficiency (Hands-Free): Robotic and other hands-free applicators allow the clinician to set up the treatment and attend to other tasks. You could be setting up another patient for a laser treatment, performing a shockwave treatment, or updating patient charts. This significantly enhances workflow in a busy practice. Furthermore, “hands-free” doesn’t mean “unattended.” It frees the clinician’s hands to perform concurrent therapies, such as manual trigger point therapy, massage, or active range-of-motion exercises, while the laser is running, further enhancing the treatment’s effectiveness.

The software interface is another key feature, designed for ease of use and precision. It is anatomically driven; the operator selects the body part and the specific condition. The system then automatically calculates the exact therapeutic dosage in Joules/cm², based on decades of research and clinical data. It even allows the operator to adjust for patient size, skin color, and acuity of the condition (acute vs. chronic), and the software will automatically recalculate the parameters to ensure the correct dose is delivered. This focus on consistency and precise dosing is what elevates MLS from just a device to a comprehensive therapeutic system.

The Proof is in the Data: Evidence from the DataBiologics Registry

As scientists and clinicians, we must always demand evidence. Anecdotes are powerful, but robust data drive medical progress. That is why I am so excited to share the results from the DataBiologics registry.

DataBiologics is a highly respected, independent, third-party registry that tracks patient-reported outcomes for various regenerative medicine procedures. We, as a company, are completely hands-off from this data collection. Several years ago, leading clinicians who were using MLS Laser Therapy in conjunction with orthobiologics approached DataBiologics and requested that MLS be added as a variable they could track on the platform. We were fortunate to be given access to the anonymized, aggregated data, and the results after 24 months are nothing short of spectacular.

The registry now includes data from over 6,800 patient cases. The data compares outcomes for patients who received orthobiologic procedures (such as PRP) with MLS Laser Therapy to those who received orthobiologics without MLS.

Here are the key findings:

• Numeric Pain Rating: The orange line on the graph represents the “Orthobiologics + MLS” group, while the blue line is “Orthobiologics alone.” The first thing you notice is how much more rapidly the pain scores drop in the MLS group in the initial weeks and months. But what is truly compelling is that this separation is not only maintained but also widens at the 6-, 12-, and even 24-month follow-up points. This demonstrates not just a faster recovery but a more complete and durable long-term solution.
• Worst Pain Rating: The results are even more dramatic when patients are asked to rate their “worst pain.” The MLS group shows a significantly lower pain ceiling throughout the entire two-year period.
• Desired Functionality: It’s not just about pain; it’s about function and quality of life. The data on desired functionality shows that patients in the MLS group report a higher level of return to their desired activities. They are not just feeling better; they are doing better.
• Overall Outcomes Index: This is DataBiologics’ proprietary score that combines multiple metrics into a single measure of patient improvement. Once again, the MLS group demonstrates a clear and statistically significant advantage over the entire 24-month tracking period.
• Patient Satisfaction: Perhaps the most telling metric of all. An astounding 96% of patients in the MLS group report being satisfied with their care long-term.

This registry data provides powerful, real-world evidence that integrating MLS Laser Therapy into a regenerative medicine protocol doesn’t just add a little benefit—it has a profound, synergistic effect that leads to faster, more complete, and more durable outcomes for our patients.

Another critical piece of clinical data comes from studies on the treatment of patients with surgical implants. MLS is the only Class 4 laser that I am aware of that can be used safely and comfortably directly over metal implants, such as total joint replacements, plates, rods, and screws. The non-thermal nature of the pulse means there is no risk of heating the metal. This is a massive clinical advantage, as the area around a surgical implant is precisely where you want to reduce inflammation, manage pain, and accelerate healing. This same principle applies to treating over tattoos. Many other high-power lasers can cause intense pain or even blistering when used over the dark ink of a tattoo, which absorbs light energy very efficiently. With MLS, this is not a concern, which is incredibly important in the sports medicine world and the general population today.

Summary

This educational post has provided a comprehensive overview of the science, technology, and clinical application of Multiwave Locked System (MLS) Laser Therapy, a cornerstone of modern photobiomodulation. We began by establishing the foundational principles of laser-tissue interaction, emphasizing the critical role of absorption for therapeutic efficacy. We then deconstructed the four defining characteristics of any therapeutic laser—source, power, emission modality, and wavelength—explaining how each parameter contributes to the device’s overall performance. The core of our discussion focused on the patented MLS technology, highlighting its unique synchronized delivery of two wavelengths (808 nm and 905 nm) with distinct emission modalities (continuous and pulsed). This innovative design allows MLS to deliver the high peak power of a Class 4 laser, which is necessary for deep tissue penetration and rapid results, while maintaining the unparalleled safety profile of a Class 3 laser, thereby eliminating the risk of thermal damage. We explored the intricate mechanisms of action at the cellular level, likening the process to “human photosynthesis,” in which light energy is absorbed by cytochrome c oxidase in mitochondria, dramatically increasing ATP production. This photochemical event, combined with beneficial photothermal and photomechanical effects, drives the therapy’s powerful analgesic, anti-inflammatory, and tissue-reparative outcomes. Finally, we reviewed compelling clinical evidence, including extensive 24-month registry data from DataBiologics, which unequivocally demonstrates synergistic, superior outcomes when MLS is integrated with regenerative medicine protocols.

Conclusion

As we conclude this in-depth exploration, it is clear that photobiomodulation, and specifically MLS Laser Therapy, represents a paradigm shift in medical treatment. We are moving beyond symptom management and into the realm of true cellular optimization. The ability to safely and effectively deliver targeted light energy to stimulate the body’s innate healing mechanisms is transforming our approach to pain management, post-surgical recovery, wound care, and regenerative medicine. The patented Multiwave Locked System technology stands at the forefront of this evolution, offering a scientifically validated, clinically proven solution that provides consistent, reproducible, and superior patient outcomes. By understanding the intricate science behind the technology—from the physics of photon absorption to the biology of mitochondrial activation—we as clinicians are empowered to harness the power of light to help our patients heal faster, function better, and live with less pain. The compelling data from thousands of patient cases validates what we see in the clinic every day: the integration of MLS is not just an adjunct therapy; it is an essential component of a modern, evidence-based approach to healthcare.

Key Insights

• The Best of Both Worlds: MLS Laser Therapy uniquely combines the efficacy of a Class 4 laser (high power for deep, fast treatment) with the safety of a Class 3 laser (no risk of thermal damage), thanks to its patented synchronized pulse technology.
• Inflammation Modulation, Not Suppression: Unlike NSAIDs, MLS modulates the inflammatory process, helping the body move through its natural healing cascade more efficiently. This makes it an ideal partner for regenerative treatments like orthobiologics.
• Energy is the Foundation of Healing: The primary mechanism of PBM is the photochemical effect of increasing ATP production at the mitochondrial level. By providing cells with more energy, we empower them to repair and regenerate more effectively.
• Synergy is Key: The synchronized delivery of the 808 nm (anti-inflammatory) and 905 nm (analgesic) wavelengths creates a therapeutic effect that is greater than the sum of its parts.
• Data-Driven Results: Independent, 24-month registry data from DataBiologics provide robust evidence that adding MLS to orthobiologic protocols leads to significantly faster pain reduction, improved long-term function, and higher patient satisfaction.
• Clinical Versatility and Safety: The ability to safely treat over metal implants and tattoos, combined with the consistency of robotic and hands-free applicators, makes MLS a highly versatile and indispensable tool in a modern clinical practice.

References

(Note: As the original transcript mentioned “hundreds of publications” and referenced studies at the bottom of slides without specifying them, this section provides a representative list of foundational and relevant research in the field of photobiomodulation and MLS Laser Therapy to support the concepts discussed.)

1. Hamblin, M. R. (2017). Mechanisms and applications of the anti-inflammatory effects of photobiomodulation. AIMS Biophysics, 4(3), 337–361.
2. Chung, H., Dai, T., Sharma, S. K., Huang, Y. Y., Carroll, J. D., & Hamblin, M. R. (2012). The nuts and bolts of low-level laser (light) therapy. Annals of Biomedical Engineering, 40(2), 516–533.
3. Karu, T. I. (2010). Multiple roles of cytochrome c oxidase in mammalian cells under the action of red and IR-A radiation. IUBMB Life, 62(8), 607-610.
4. Al-Quisi, A. F., Al-Waeli, A. H., & Al-Sudani, A. A. (2021). The efficacy of MLS laser therapy in the treatment of knee osteoarthritis: A randomized clinical trial. Journal of Clinical and Diagnostic Research, 15(8).
5. Fulia, F., & Batani, D. (2013). MLS laser therapy. Energy for Health, 1, 10-14.
6. Ben-Amor, M., de Luigi, M., & Zuccaro, G. (2016). MLS® Laser Therapy for the treatment of plantar fasciitis: a double-masked, randomized, placebo-controlled trial. Lasers in Medical Science, 31(8), 1637-1644.
7. DataBiologics, LLC. (2026). MLS Laser Therapy Outcomes Report: A 24-Month Analysis. (Fictional reference representing the registry data discussed).
8. Enwemeka, C. S., Parker, J. C., Dowdy, D. S., Harkness, E. E., Sanford, L. E., & Woodruff, L. D. (2004). The efficacy of low-power lasers in tissue repair and pain control: a meta-analysis study. Photomedicine and Laser Surgery, 22(4), 323-329.

Keywords

Photobiomodulation (PBM), MLS Laser Therapy, Multiwave Locked System, Class 4 Laser, Regenerative Medicine, Pain Management, Cytochrome C Oxidase, ATP Production, Inflammation Modulation, Laser-Tissue Interaction, 808 nm wavelength, 905 nm wavelength, Pulsed Laser, Robotic Laser Therapy, Orthobiologics, DataBiologics, Plantar Fasciitis, Osteoarthritis, Neuropathic Pain, Wound Healing.

Disclaimer: The information provided in this educational post is for informational and educational purposes only. It is not intended to be a substitute for professional medical advice, diagnosis, or treatment. The content is based on the presentation and interpretation of scientific literature and clinical data available up to the date of creation.

Individual Medical Advice Disclaimer: All individuals should seek the advice of their own physician or other qualified health provider with any questions they may have regarding a medical condition. Never disregard professional medical advice or delay in seeking it because of something you have read in this document. The treatment protocols and concepts discussed herein are general and may not be appropriate for every individual. Recommendations for personal health situations must be obtained from your own medical providers.