Medical Grade Red Light Therapy: A Practical Guide to Skin, Pain, and Body Goals

By: Dr. Shane Kurth, D.C., BCN

Updated March 2026

Editor’s note: This guide was written by the clinical team at Radiant Results, a medical-grade red light therapy clinic in Sandy, Utah. We’ve drawn on published research and guidance from Harvard Health, the Cleveland Clinic, and the FDA to present realistic, grounded information for people exploring this treatment.

Key Takeaways

• Medical grade red light therapy uses specific red and near-infrared light bands to support cell energy, which may help with skin appearance, soreness, and recovery.
• In a clinic, the light dose is more consistent than most home devices, so people often see clearer progress when following a structured plan.
• Common goals include skin tone, fine lines, joint and muscle pain, swelling, and non-surgical body sculpting.
• Most results come from repeat sessions — typically several visits per week for a few weeks, then a lighter maintenance schedule.
• Safety is strong for most people, but check with a healthcare provider if you are pregnant, have a light-sensitive condition, or take medications that increase light sensitivity.

Quick Reference: Common Light Bands Used in Clinics

Light Type	Common Band (nm)	Typical Focus Area	What People Often Notice
Red light	~630–660	Skin surface	Smoother look, more even tone
Near-infrared	~810–850	Deeper tissue	Less soreness, better joint comfort
Infrared	~800–900	Deeper tissue	Less soreness, better joint comfort

Worth knowing: “Medical grade” is not a marketing phrase. In practice, it means the device delivers a repeatable dose — consistent light strength, session time, and treatment distance — session after session. That consistency is one reason clinics can track progress more reliably than most at-home setups.

Introduction to Medical Grade Red Light Therapy

Medical grade red light therapy is a clinic-based treatment that uses red and near-infrared light to support how your body’s cells produce energy. This matters because your cells need energy to perform normal repair work. When the right light bands reach the skin, they can support the mitochondria inside your cells — the structures that help convert oxygen and nutrients into usable cellular fuel.

You may hear the term photobiomodulation. It simply means “light that influences cell signals.” The goal is not heat, burning, or pain. Most people feel gentle warmth during a session and return to their normal day immediately after.

People commonly seek medical grade red light therapy for these goals:

• Skin that looks smoother and more even
• Softening of fine lines and dull tone
• Joint or muscle discomfort
• Swelling and soreness after activity
• Non-surgical body shaping

One reason clinic-based care differs from home devices is dose control. In a clinic, device output, session time, and body position are planned and repeatable — which supports the consistency that most results depend on.

Red light is generally used for surface-level skin goals. Near-infrared light reaches deeper tissue, making it more useful for muscle and joint comfort. Many clinics use both wavelengths together, since clients often want support in both areas.

How Medical Grade Red Light Therapy Works

How Light Supports Cell Energy

Medical grade red light therapy delivers specific bands of red and near-infrared light to tissue, where cells — particularly the mitochondria — absorb that light. Mitochondria help convert oxygen and nutrients into ATP, the primary energy currency the body uses for repair and recovery.

When mitochondria absorb this light, they may function more efficiently. Over time, this may support:

• Normal tissue repair
• Collagen activity in the skin
• Calmer inflammatory signals in sore areas
• Better comfort in muscles and joints

This is why repeat sessions matter. One visit can feel beneficial, but a consistent series is usually what produces visible or lasting change. Harvard Health notes that photobiomodulation is being studied for pain, tissue healing, and skin, while acknowledging that evidence continues to develop across different applications.

Red Light vs. Near-Infrared Light

These two wavelengths work at different depths, which is why clinics often use both.

Red light (~630–660nm) is commonly used for surface-level goals:

• Smoother-looking skin and more even tone
• Fine lines that appear softer over time

Near-infrared light (~810–850nm) reaches deeper tissue and is often used for:

• Muscle soreness and joint comfort
• Recovery after workouts or physically demanding days

Many people benefit from this “two-layer” approach — red light for skin, near-infrared for deeper recovery.

Why “Medical Grade” Can Matter: Dose and Consistency

The key difference between medical grade red light therapy and most consumer devices is dose control. Dose is the combination of:

• Light strength — how much light actually reaches the tissue
• Time — how long each session lasts
• Distance — how close the body is to the device
• Coverage — how much of the body is treated at once

With home devices, people often shift distance or skip sessions without realizing how much that affects results. In a clinic, sessions are timed, consistent, and staff-guided — making it easier to follow a plan and measure progress.

What This Can Lead To

What the Light May Support	What That Can Mean for You	What People Often Notice Over Time
Better cell energy (ATP support)	More efficient repair	Skin looks less dull
Calmer inflammatory signals	Better comfort in sore areas	Less stiffness after activity
Collagen activity	Improved skin firmness and texture	Fine lines appear softer
Local circulation support	Recovery and comfort	Reduced post-activity soreness

What a Plan Can Look Like (Common Pattern)

A person wants help with knee discomfort and wants skin that looks more even. They start with 3 sessions per week for 4 weeks, then shift to 2 sessions per week for another 4 weeks. Most people following a plan like this report that comfort changes show up first, while skin changes become more noticeable later.

Results vary, but the pattern is consistent: repeat sessions first, then review and adjust based on progress.

Types of Medical Grade Red Light Therapy Devices

Not all red light devices deliver the same results. The type of device affects coverage, dose, and how easy it is to maintain a consistent plan.

Full-Body Beds (Most Common in Clinics)

Full-body beds treat a large area in a single session. You lie down, the session is timed, and the light covers most of your body at once.

They’re commonly used for skin tone and texture goals, whole-body recovery, and non-surgical body sculpting programs. The main advantage is simplicity — the clinic sets the protocol and you repeat it, removing the guesswork.

At Radiant Results: We use a full-body, medical-grade light therapy bed for fast, consistent-coverage sessions. It’s the easiest format to stay consistent with if whole-body support is your goal.

Panels (Large Area, More Flexible)

Panels are upright devices that treat one side of the body at a time. They’re useful for targeting the back, hips, thighs, or shoulders, but the user needs to manage distance and positioning — which can affect dose consistency, particularly at home.

Handheld Devices (Small, Targeted Areas)

Handhelds are best for small, focused spots like a wrist, elbow, or a specific skin area. They’re common for home use but impractical for full-body treatment, and dose can vary as the device is moved around.

Caps and Helmets (Scalp-Focused)

Designed for scalp use, these are used by people exploring hair thinning support and scalp circulation. Results vary considerably, and most people need a longer plan — often 8–16 weeks or more — before judging change.

Clinic vs. At-Home Devices: A Simple Comparison

Feature	Clinic Medical Grade	At-Home Consumer Devices
Dose repeatable	Usually yes	Often varies with use
Coverage	Often full-body or large-area	Often smaller area
Session plan	Staff-guided	Self-managed
Progress tracking	Scans, photos, measurements	Usually not tracked
Convenience	Requires travel	Use at home anytime

What to Look for When Choosing a Provider

Before booking at any clinic, ask:

• Do they use both red and near-infrared light?
• Do they set a structured frequency and duration plan, or is it open-ended?
• Do they track progress with photos, scans, or measurements?
• Do they explain safety basics, including eye care and session limits?

At Radiant Results in Sandy, UT, we use the Styku 3D body scanner to help clients track changes that can be hard to notice day to day. It’s one of the reasons clients in the Salt Lake Valley find it easier to stay motivated throughout a program.

Benefits and Applications of Medical Grade Red Light Therapy

People often begin medical grade red light therapy with one primary goal and notice secondary benefits along the way — like better recovery or skin that looks less fatigued.

Skin Rejuvenation

Red light is primarily used for surface-level skin goals. With steady sessions, some people notice smoother-looking skin, more even tone, softened fine lines, and a less “tired” appearance — which is what professional skin rejuvenation is designed to support.

Realistic timeline: Skin changes are gradual. Many people notice small shifts around weeks 3–6 with consistent sessions.

Pain Relief and Comfort Support

Near-infrared light reaches deeper tissue, making it relevant for sore knees, hips, low back, and shoulders, as well as stiffness after long work shifts or workouts.

Realistic timeline: Comfort changes tend to show up sooner than skin changes. Some people notice a difference within the first few weeks when they maintain a steady schedule.

Non-Surgical Body Sculpting

Medical grade red light therapy is used in body sculpting programs for people targeting the waist, hips, thighs, arms, or chin area. Most people are looking for inch reduction and a more contoured appearance. Clinics typically combine repeat sessions with simple lifestyle guidance for best results.

A useful approach: if your clinic uses scans or photos, it’s much easier to stay on track. Clients at Radiant Results use the Styku 3D scanner to see measurable changes before they feel them in their clothing.

Hair Growth Support

Some people use red and near-infrared light for hair thinning concerns, with the goal of supporting scalp circulation and cell activity. Results vary widely, and most plans need 8–16 weeks or more before meaningful progress can be assessed.

Inflammation and Recovery Support

Many people incorporate medical grade red light therapy as a general recovery tool — for post-workout soreness, achy joints after long days, or general fatigue after repetitive physical activity. The Cleveland Clinic notes that results depend on the condition being treated and how the therapy is used.

Best Practices for Medical Grade Red Light Therapy

To get the most from treatment, focus on consistency and realistic expectations.

How Often Should You Go?

A common clinic starting schedule is 2–3 sessions per week for 3–6 weeks, then a maintenance phase of 1–2 sessions per week. The exact cadence depends on your goals — skin, pain, and body sculpting programs may be structured differently, and a good clinic will adjust based on your progress.

Session Basics

Most sessions run 10–20 minutes depending on the device and plan. Full-body bed sessions are typically quick and timed, making it easy to stick to a consistent routine.

Safety Basics

• Follow clinic guidance on eye protection — avoid looking directly into the light
• Tell the provider if you are pregnant, have a light-sensitive skin condition, or take medications that increase light sensitivity
• Stick to the planned session frequency — more sessions is not always better, and a structured plan matters more than volume

Small Habits That Support Results

• Stay hydrated
• Maintain consistent sleep
• Give the plan at least 3–4 weeks before judging results

Frequently Asked Questions

How long is a typical red light therapy session? Most sessions are 10–20 minutes, depending on the device and treatment plan.

How often should I attend sessions? Most people start with 2–3 sessions per week, then shift to 1–2 per week for maintenance. Your clinic should set a specific schedule based on your goals.

Is medical grade red light therapy safe for everyone? It is generally considered low risk for most people. That said, check with a healthcare provider before starting if you are pregnant, have a photosensitive skin condition, or take medications that increase light sensitivity. The FDA’s guidance on light therapy devices is a useful reference for understanding cleared indications.

Can it help with hair growth? It may support hair density for some people, but results vary considerably. Most protocols require 8–16 weeks or more before any change can be meaningfully assessed.

What should I look for in a provider? Look for a clinic that uses both red and near-infrared wavelengths, sets a clear session frequency and duration plan, tracks progress over time, and explains safety guidelines upfront.

Is medical grade red light therapy available near Sandy, Utah? Yes. Radiant Results is located at 870 East 9400 South, Unit 113, Sandy, UT 84094. We serve clients from Sandy, Draper, Murray, South Jordan, and throughout the Salt Lake Valley. Call us at 801.980.0840 or claim the $79 New Patient Special to get started.

Final Thoughts

Medical grade red light therapy can be a practical, noninvasive option for people with skin, pain, or body sculpting goals — when approached with realistic expectations and a consistent plan.

The biggest differentiator between clinic-based care and home devices is dose consistency. In a clinic, the variables are controlled and repeatable. That makes it easier to follow a program, track results, and adjust over time.

If you’re in the Salt Lake Valley and want to try a structured, medical-grade option, Radiant Results offers guided red light therapy programs backed by the Radiant Results Promise.

Sources:

• Harvard Health: Photobiomodulation / Red Light Therapy
• Cleveland Clinic: Red Light Therapy
• FDA: Light Therapy Home Use Devices

Author bio: Dr. Shane Kurth, D.C., BCN, is the co-owner of Radiant Results and a leading expert in full spectrum medical-grade light therapy and whole-body wellness. With a background in chiropractic care, chronic pain management, and advanced light-therapy applications, Dr. Kurth has dedicated his career to helping people achieve life-changing results through non-invasive, science-backed solutions.

His passion for healing and transformation is the foundation of Radiant Results — a clinic built to offer clients a safe, effective, and empowering path toward body confidence and optimal well-being.

Drawing from years of clinical experience and successful operational leadership at Apex Chiropractic in Colorado, Dr. Kurth helped develop the reproducible light-therapy protocol that powers Radiant Results today. This system has helped thousands of clients reduce stubborn body fat, tighten and rejuvenate their skin, and improve their health without surgery or downtime. At the heart of his work is a simple mission: to help people feel better in their bodies and live more radiant, fulfilling lives.