Photobiomodulation: A Game Changer in MLS Laser Therapy

Explore the innovative MLS laser therapy, combined with photobiomodulation, for pain relief and healing across various conditions.

Abstract

In this educational post, I guide you through a clear, first-person journey into photobiomodulation (PBM) and MLS laser therapy as part of a modern integrative chiropractic and regenerative approach. I explain what therapeutic lasers are, how light interacts with tissue, why synchronized multiwavelength delivery matters, and how power, pulsing, and wavelength determine both safety and clinical outcomes. I then connect these mechanisms to practical care pathways for musculoskeletal conditions, neuropathic pain, wound healing, and post-surgical recovery. I share the physiological underpinnings at the mitochondrial, microvascular, and extracellular matrix levels, illustrate where MLS laser therapy fits within orthobiologics and shockwave protocols, and discuss real-world workflow, robotic delivery, and dosing consistency. Throughout, I incorporate my clinical observations from practice and research collaborations, cite current evidence in APA-7 style, and provide step-by-step reasoning for each clinical decision so you can see exactly why and how we build a safe, effective, and scalable PBM program in an integrative chiropractic setting.

A First-Person Welcome: Why This Matters Now

I am Dr. Alexander Jimenez, DC, APRN, FNP-BC, CFMP, IFMCP, ATN, CCST. As a clinician who lives at the intersection of integrative chiropractic, functional medicine, pain science, and regenerative therapeutics, I care deeply about translating rigorous, evidence-based insights into care that meaningfully improves function and quality of life.

When I stepped into Apex’s new education and immersion facility on 2026-05-02, I felt the energy of a rapidly evolving field. From the reception to the dedicated laser suite, the experience was first class. I’m grateful to Andrea Molinari and the Apex and Excel teams for creating a space where leading-edge science meets clinical practicality. I also appreciate the contributions of colleagues who are advancing photobiomodulation (PBM) and MLS laser therapy in sports medicine, orthopedics, and regenerative care, as well as the ongoing dialogue about combining energy devices with orthobiologics and shockwave to optimize mitochondrial health and cellular recovery.

What follows is my distilled, first-person walk-through of key concepts, mechanisms, and protocols—presented as a readable journey you can use to inform patient care.

Understanding Photobiomodulation: The Foundations

When I talk with patients and clinicians about lasers, I start with what PBM is and is not.

• PBM is the therapeutic use of non-ionizing light (typically in the red–near-infrared spectrum) to trigger beneficial biological responses.
• PBM is not a thermal ablation tool; it is a bioregulatory signal that modulates cellular processes.
• The goal is to enhance cellular energy, reduce maladaptive inflammation, improve microcirculation, and accelerate tissue repair without causing tissue damage.

Four key tissue interactions govern what actually happens when photons meet biology:

• Reflection: Some light bounces off the skin; we can reduce this by optimizing angle, contact, and focal distance.
• Transmission: A portion passes through to deeper tissues.
• Scattering: Photons spread, reducing intensity; beam profile and optics matter.
• Absorption: Photons are captured by chromophores (for PBM, especially cytochrome c oxidase), triggering biochemical cascades.

From a practical standpoint, I am always trying to maximize safe absorption at the target depth while controlling reflection and scattering and avoiding unnecessary heat. That is where wavelength, power, emission mode, and delivery geometry make or break outcomes.

Decoding Laser Terminology: Source, Power Class, Emission, Wavelength

In the clinic, I keep these core variables front and center:

• Source

• • Most therapeutic PBM systems use diode lasers. The active semiconductor emits photons at precise wavelengths when excited. Manufacturing quality and diode reliability are critical to consistency and longevity.

• Power Class

• • Class 3: ≤0.5 W total output; often called low-level or cold lasers.
  • Class 4: >0.5 W; sometimes labeled high-power or high-intensity.
  • Higher power shortens treatment time and improves photon density at depth, but unmanaged continuous output can overheat tissue. Safety engineering and pulse architecture become decisive.

• Emission Modality

• • Continuous wave (CW): Constant output. Efficient, but sustained heat can accumulate if stationary.
  • Pulsed: Output turns on and off electronically. True pulsing creates micro- to nanosecond “rest” periods for tissue thermal relaxation.
  • Chopped CW: A mechanical interruption of a continuous beam; not true off-time at the source and less effective at preventing heat accumulation.

• Wavelength

• • The “prescription” of a laser. In PBM, the typical therapeutic window is roughly 600–1100 nm because skin chromophores and water allow useful penetration while providing strong biologic coupling.
  • Near-infrared light (800–1000+ nm) penetrates deeper and couples well with mitochondrial cytochrome c oxidase (CCO), a key chromophore for ATP upregulation.

Why MLS Laser Therapy Is Distinct: Multiwave Locked System

In my practice, MLS laser therapy stands out for a specific reason: synchronized multiwavelength pulsing engineered for safety and depth.

• Two synchronized wavelengths

• 808 nm (continuous) targets metabolic and anti-inflammatory effects with good tissue penetration.
• 905 nm (pulsed) delivers very high peak power in nanosecond bursts, amplifying photon density at depth without sustained thermal load.

• Synchronized emission

• The “locked” delivery coordinates these beams so their effects are reciprocally reinforcing. In practical terms, I see more homogeneous energy distribution across the target field with better balance between surface and deep tissues.

• Safety profile

• Although MLS devices are Class 4, the pulsed 905-nm channel’s true off-times allow for thermal relaxation. With correct technique, tissue temperatures remain below the 43–45°C non-therapeutic/thermal damage thresholds, maintaining a safety margin even with stationary “point dosing.”
• This architecture lets me dose precisely over small joint spaces, tendons, or wound margins, and safely automate scanning with a robotic head to ensure consistency.

In short, MLS combines the clinical efficiency of Class 4 with a safety profile more like Class 3 through pulse engineering. That translates to predictable treatments, consistent outcomes, and reduced operator stress.

The Physiology: How Light Changes Biology

To make PBM clinically meaningful, I anchor every protocol to a mechanism. Here is how I explain it to patients and staff:

• Photochemical effect

• Photons in the 808–905 nm range are absorbed by mitochondrial CCO, displacing nitric oxide (NO) from the enzyme’s heme-copper center and restoring electron flow and oxygen binding.
• Result: Increased mitochondrial membrane potential, upregulated ATP synthesis, more balanced reactive oxygen species (ROS) signaling, and activation of pro-repair transcription factors.
• At the tissue level, I see faster granulation in wounds, quicker tendon remodeling, and better exercise tolerance during rehab phases.

• Photothermal effect

• Mild, controlled heating from NIR light promotes vasodilation, enhances microcirculatory perfusion, and supports lymphatic flow.
• This is not about “feeling hot”; it is about delivering enough energy to trigger NO-mediated vasodilation and endothelial responses without tipping into a non-therapeutic thermal band.

• Photomechanical effect

• High-peak, short-pulse 905 nm emission generates rapid photoelastic changes in extracellular matrix (ECM), transiently altering mechanotransductive signaling.
• I leverage this to reduce edema, improve fascial glide, and complement manual therapy. It appears to prime tissues to respond more effectively to mobilization and corrective exercise.

• Immunomodulation, not suppression

• PBM modulates inflammatory balance by dampening excessive proinflammatory cytokines (e.g., TNF-α, IL-1β) while supporting anti-inflammatory mediators and resolution pathways.
• Clinically, this is why PBM pairs well with orthobiologics: we do not suppress the acute inflammatory spark needed for regenerative signaling; we regulate it to prevent runaway catabolism and pain sensitization (Anders et al., 2021; Hamblin, 2017).

Dosing Logic: Why We Choose Specific Settings

Every parameter has a reason:

• Wavelength pairing (808 + 905 nm)

• 808 nm provides strong coupling to CCO, thereby increasing ATP production.
• 905 nm pulsed delivers high-photon-density spikes to reach deeper nociceptive and vascular targets while avoiding heat accumulation.

• Power density and exposure time

• Energy (J) = Power (W) × time (s). I adjust these to deliver condition-specific joule targets per square centimeter.
• For focal bursae, tendons, or facet joints, I often prefer precise “point dosing” with stationary delivery, particularly with MLS’s safe pulse architecture.
• For larger areas (paraspinal myofascial chains, diffuse OA knee pain), robot-guided scanning ensures homogeneous coverage, reduces operator variance, and standardizes outcomes across staff.

• Frequency of care

• PBM is cumulative. For acute issues, I commonly recommend 4–6 sessions; for chronic conditions, 8–12 sessions are typical. Many patients benefit from 2–3 visits per week early, stepping down as symptoms and function improve.

• Thermal safety boundaries

• With true pulsing, tissue temperatures remain within the therapeutic range. Feeling “warm” is not a proxy for biological efficacy. I train staff to focus on dose metrics and target coverage rather than heat sensation.

Integrative Chiropractic Care: Where PBM Fits in My Clinical Workflow

In my integrative chiropractic model, I rarely use PBM as a standalone. It is most powerful when layered into a systems approach that addresses joint mechanics, neuromuscular control, and cellular bioenergetics.

• Assessment and diagnosis

• I begin with a functional assessment: movement screens, regional interdependence, palpatory findings, neural tension, and, when indicated, imaging or ultrasound to confirm tissue status.
• I identify the primary pain generators and secondary contributors—facet joints, tendinopathy, myofascial trigger points, nerve entrapment, vascular congestion.

• Manual therapy and mobilization
  • I use PBM either before or after manual work, depending on goals:

• Before manual therapy, reduce guarding and pain to allow deeper but comfortable mobilization.
• After manual therapy to calm reactive hyperalgesia, enhance microcirculation, and support post-mobilization tissue recovery.

• Corrective exercise and motor control

• PBM buys the “window” patients need to move with less pain. I incorporate graded loading, proprioceptive retraining, and eccentric/isometric exercises for tendon rehab during that window to consolidate gains.

• Orthobiologics and shockwave integration

• Orthobiologics (e.g., PRP) rely on a clean inflammatory signal and adequate cellular energy to remodel tissues. PBM supports mitochondrial function and modulates inflammation without suppression, making it a natural adjunct.
• Shockwave and PBM together can be synergistic: shockwave provides a strong mechanotransductive stimulus; PBM reinforces mitochondrial and vascular support for the ensuing repair cascade. I typically schedule PBM in the 24–72 hours post-shockwave window to support recovery, or immediately pre-shockwave to reduce nociception in sensitive patients.

• Neuropathic and post-surgical protocols

• For neuropathic pain, pulsed NIR appears to influence axonal transport, mitochondrial function in peripheral nerves, and microvascular perfusion. I prioritize consistent dosing along nerve pathways, with careful attention to patient feedback.
• Post-surgically, I use PBM to reduce edema, support incisional healing, and ease pain without pharmacologic escalation. The literature and real-world experience support the safe use of implants with synchronized pulsed Class 4 systems engineered for thermal safety.

Robotic Delivery and Consistency: Reducing Variability, Improving Outcomes

In busy clinics, operator variability is a major barrier. MLS robotic delivery is valuable for two reasons:

• Consistent energy to the targeted tissue

• The robot adheres to programmed paths and dwell times, guaranteeing the same dose every time, regardless of who is on shift. This standardization shows up in our outcomes data and patient-reported satisfaction.

• Workflow efficiency

• Hands-free operation frees staff to set up a second patient, apply shockwave, or perform soft-tissue work while the robot delivers PBM. Done correctly, safety is preserved because the pulse architecture avoids heat buildup during stationary phases.

I also appreciate that the software is anatomically guided and parameter-aware. It displays target joules, factors in patient size and condition phase, and adjusts dosing so we can focus on clinical decision-making rather than manual number crunching.

Clinical Applications I See Most Often

Here are areas where PBM and MLS have been particularly impactful in my practice and in the clinics I consult with:

• Musculoskeletal pain and dysfunction

• Tendinopathies (Achilles, patellar, lateral elbow): PBM reduces pain, modulates tenocyte inflammation, and supports collagen remodeling when paired with progressive loading.
• Facet-mediated low back pain and cervical pain: PBM decreases nociceptive input and paraspinal hypertonicity, enabling more effective joint mobilization and motor control training.
• Plantar fasciitis: Combining PBM with foot intrinsic strengthening and load management typically accelerates progress.

• Osteoarthritis

• Knees and hands respond well to PBM’s microvascular and mitochondrial support, with noticeable improvements in pain and function over multiweek courses. I use it alongside weight management, neuromuscular training, and nutrient optimization.

• Wound healing and post-surgical recovery

• I have observed accelerated granulation, reduced periwound inflammation, and improved cosmetic healing with routine PBM dosing, including in patients with diabetes and complicated wounds. The key is consistent, protocolized delivery.

• Neuropathic pain and diabetic neuropathy

• For neuropathic patterns, MLS settings designed for nerve tissue can help reduce dysesthesia and improve function over a course of sessions. In my experience, expectations matter: patients often notice gradual, cumulative benefit rather than abrupt changes.

Evidence Snapshot: What the Literature and Registries Show

• Photobiomodulation mechanisms and dosing

• Foundational PBM research indicates that NIR wavelengths increase ATP, modulate ROS, and influence NO pathways, leading to pain reduction and improved tissue repair (Anders et al., 2021; Hamblin, 2017; Huang et al., 2011).
• Pulsed emission with adequate peak power improves photon density at depth while preserving thermal safety, a critical design element for consistent clinical dosing.

• Clinical indications

• Studies and clinical reports support PBM for musculoskeletal pain, neck pain, knee osteoarthritis, plantar fasciitis, and wound healing, with cumulative dosing correlating to sustained outcomes (Bjordal et al., 2006; Chow et al., 2009; Hsieh et al., 2014; Tomazoni et al., 2017).

• Orthobiologic synergy

• Integrating PBM with orthobiologics is supported by mechanistic plausibility: improved mitochondrial function and controlled inflammation can potentiate anabolic signaling and tissue remodeling (Anders et al., 2021). Early registry data from third-party platforms tracking outcomes with and without PBM adjuncts suggest faster pain reduction and better functional trajectories when PBM is included.

In my clinics and partner sites, patient-reported outcomes echo these trends: quicker pain relief during the first month, sustained improvements at 3–6 months, and meaningful gains at 12–24 months when PBM is packaged with movement-based rehab and, where indicated, orthobiologics.

Safety, Tattoos, and Implants: What I Tell Patients

Because MLS uses synchronized pulsed delivery with true off-times, we can:

• Safely treat over common orthopedic implants
• Confidently treat patients with tattoos in the target area with prudent monitoring
• Avoid thermal damage while using stationary point dosing over small targets

This is not permission to be casual; it is a design feature that expands where and how I can dose and makes robotics feasible without constant manual motion.

Protocol Design: Putting It All Together

When I build a plan, I explain the why behind each element so patients understand the journey:

• Acute tendinopathy protocol (example)

• PBM 2–3 times per week for 4–6 sessions targeting the tendon and myotendinous junction with point dosing for precise energy delivery.
• Integrative chiropractic care: joint mobilization to restore kinetic chain mechanics; isometric then eccentric loading progression; foot/hip control retraining.
• Optional adjuncts: shockwave for recalcitrant cases; orthobiologics for partial tears; nutrition and sleep optimization to support collagen synthesis.

• Knee OA protocol (example)

• PBM 2–3 times per week for 8–12 sessions using robot-guided scanning to cover articular margins and periarticular tissues.
• Integrative chiropractic care: tibiofemoral and patellofemoral mobilization, hip abductor strengthening, gait retraining, and weight management coaching.
• Consider orthobiologics for structural support; PBM continues pre- and post-injection to optimize the microenvironment.

• Post-surgical wound protocol (example)

• PBM early and regularly to reduce edema and pain and to support vascular and mitochondrial function in healing tissues.
• Integrative care: gentle lymphatic measures, progressive range of motion as cleared, and graded return to function.

• Neuropathic pain protocol (example)

• PBM along nerve course with parameters emphasizing pulsed delivery and cumulative dosing over 8–12 sessions.
• Integrative care: nerve glides, foot/ankle proprioception work, microcirculation support, and metabolic optimization for glycemic control where relevant.

My Clinical Observations: What Patients Feel and What I Measure

From years in practice and through work shared on my platforms, I’ve consistently noted the following patterns:

• Patients often report a decrease in pain and stiffness within the first few sessions, especially when PBM precedes manual therapy and exercise.
• Swelling reduces more quickly with PBM, improving joint excursion and comfort during loading tasks.
• Athletes tolerate higher training volumes during return-to-play phases when PBM is strategically incorporated into practice and recovery cycles.
• In chronic cases, intention and consistency matter: patients who complete the full course and adhere to corrective exercise progress more reliably to functional milestones.

You can explore more of my clinical content and case reflections here:

• https://pushasrx.com/
• https://www.linkedin.com/in/dralexjimenez/

Practical Pearls: Technique and Positioning

A few details that make treatments more effective:

• Position to avoid bone “shadowing.”

• Cortical bone reflects a large fraction of incident energy. I position joints to “open windows,” so photons reach synovium, entheses, and capsular tissues.

• Use point dosing for focal targets.

• For small bursae, tendon entheses, or facet joints, stationary dosing with MLS allows precise joule delivery without overheating.

• Use robotic scanning for large fields.

• For diffuse myofascial pain or OA, robotic scanning provides homogeneous dosing and session-to-session and provider-to-provider repeatability.

• Document dose and response

• I track joules, treatment area, and patient-reported change in pain and function. Data-driven adjustments improve individualization and outcomes.

Why This Approach Is Integrative, Modern, and Evidence-Informed

• It is integrative because it aligns chiropractic joint and soft-tissue care with cellular and microvascular support, linking mechanics to metabolism.
• It is modern because it leverages synchronized multiwavelength pulsing, robotic precision, and registry-informed protocols rather than relying on “it feels warm, so it must work.”
• It is evidence-informed because every decision—wavelength, pulsing, timing relative to shockwave or orthobiologics—follows from known mechanisms, safety thresholds, and cumulative dosing principles reported across the PBM literature.

What Success Looks Like for Patients

When PBM is integrated into a coherent plan:

• Pain reduces without reliance on medications that blunt healing.
• Function and desired activities return faster, with better durability.
• Wounds and post-surgical sites progress more predictably.
• Neuropathic discomfort becomes more manageable alongside metabolic and movement strategies.

Above all, patients gain confidence as their body responds—session by session, milestone by milestone.

Key Takeaways

• PBM is a precise bioregulatory therapy, not a heat lamp.
• MLS laser therapy pairs 808 nm continuous with 905 nm pulsed emission, synchronized for depth, safety, and consistency.
• True pulsing with nanosecond off-times enables stationary-point dosing and robotic automation without exceeding non-therapeutic heat thresholds.
• PBM modulates inflammation, supports mitochondrial ATP production, improves microcirculation, and facilitates tissue repair.
• The best outcomes come from integrating PBM with chiropractic mobilization, corrective exercise, shockwave therapy, and orthobiologics, when indicated.
• Consistency and standardized dosing are critical; robotic delivery helps clinics scale quality.

If you are exploring PBM for your practice or care plan, the path forward is clear: define targets, set purposeful parameters, integrate with movement and metabolic strategies, and track outcomes. That is how we turn light into lasting function.

References

• Anders, J. J., Arany, P. R., Baxter, G. D., Lanzafame, R. J., & Hamblin, M. R. (2021). Light therapy: biological mechanisms and implications for therapy. Photobiomodulation, Photomedicine, and Laser Surgery, 39(6), 395–406.
• Bjordal, J. M., Johnson, M. I., & Iversen, V. (2006). Low-level laser therapy in acute pain: A systematic review of mechanisms of action and clinical effectiveness. Physical Therapy Reviews, 11(4), 267–293.
• Chow, R. T., Johnson, M. I., Lopes-Martins, R. Á. B., & Bjordal, J. M. (2009). Efficacy of low-level laser therapy in the management of neck pain: A systematic review and meta-analysis of randomized placebo or active-treatment controlled trials. The Lancet, 374(9705), 1897–1908.
• Hamblin, M. R. (2017). Mechanisms and applications of the anti-inflammatory effects of photobiomodulation. AIMS Biophysics, 4(3), 337–361.
• Hsieh, Y.-L., et al. (2014). Effects of low-level laser therapy on pain and disability in knee osteoarthritis: A systematic review and meta-analysis. Photomedicine and Laser Surgery, 32(4), 223–229.
• Huang, Y.-Y., Chen, A. C.-H., Carroll, J. D., & Hamblin, M. R. (2011). Biphasic dose-response in low-level light therapy. Dose-Response, 9(4), 602–618.
• Tomazoni, S. S., et al. (2017). Photobiomodulation therapy combined with static magnetic field on pain, functionality, and quality of life of patients with knee osteoarthritis: A randomized, placebo-controlled trial. Lasers in Medical Science, 32, 1197–1209.

SEO tags: photobiomodulation, MLS laser therapy, integrative chiropractic, regenerative medicine, sports medicine, orthobiologics, shockwave therapy, mitochondrial function, neuropathic pain, osteoarthritis, wound healing, robotic laser delivery, pulsed near-infrared, evidence-based chiropractic, pain management