Muscle Recovery & Growth

Red light therapy can help you get the most out of your workouts, with one study concluding RLT "can increase muscle mass gained after training, and decrease inflammation and oxidative stress in muscle biopsies" to the extent that the authors "raise the question of whether PBM should be permitted in athletic competition by international regulatory authorities."

630nm Research
- 630 nm LED Improves Muscle Recovery After Intense Exercise in Athletes
In a study with 28 healthy men performing high-intensity jumping exercises, applying 630 nm red LED light before the workout enhanced jump height 24 hours later and reduced some muscle damage markers, aiding quicker recovery for athletic performance without hindering long-term muscle adaptation.
- 630 nm LED Promotes Muscle Cell Growth for Recovery
Lab tests on muscle cells (myoblasts) treated with 630 nm red LED light showed increased cell proliferation and faster closure of simulated wounds, suggesting it could speed up muscle repair and growth after workouts for athletes and bodybuilders.
- 630 nm Red LED Patch Reduces Muscle Soreness in Sports Injuries
In a trial with 36 people simulating thigh muscle contusions (common in sports), a flexible LED patch with 630 nm red light (and blue) for 30 minutes daily reduced pain, bruising, and stiffness faster, supporting muscle recovery for athletes post-exercise.
- 630 nm LED Supports Muscle Growth in Heart Cells Post-Injury
In mice with heart muscle damage from a heart attack, 630 nm LED light promoted cell proliferation, angiogenesis, and reduced scarring, improving heart function—insights that could translate to skeletal muscle growth and recovery in athletes.
HeroSeries panels use 630nm red light

660nm Research
- 660 nm LED Enhances Performance in Rugby Players
In a randomized trial, rugby players treated with 660 nm LED before match simulation ran faster, had lower lactate, and performed better, showing improved muscle recovery and reduced fatigue.
- Meta-Analysis: 660 nm LED Better Than Ice Baths
A meta-analysis found that photobiomodulation using 660 nm LEDs reduced muscle soreness and improved strength recovery more effectively than cryotherapy in athletes.
- Whole-Body 660 nm LED Reduces Muscle Damage Markers
Athletes using full-body LED beds with red and NIR light before training showed lower creatine kinase and better well-being, suggesting quicker recovery and muscle support.
- Review: 660 nm Red LED Supports Muscle Growth and Recovery
This review highlights how red LED light (around 660 nm) boosts muscle growth after training, reduces inflammation and oxidative stress, and enhances endurance through better energy production, making it a powerful recovery tool for athletes.
- Review: Red/NIR LED Aids Recovery and Performance
Across multiple trials, red and near-infrared LED therapy (including 660 nm) helped reduce muscle fatigue, speed soreness recovery, and improve running and strength training performance.
- Literature Review: 660 nm LED Improves Strength and Endurance
A review concluded 660 nm LED therapy improves athletic strength, endurance, and recovery time by minimizing fatigue and supporting better muscle adaptation.
- Systematic Review: 660 nm Red Light for Recovery
This review confirmed that 660 nm LED limits muscle damage, speeds biochemical recovery, and lowers inflammation—helping athletes build muscle and train harder.
- Clinical Trial: 660 nm LED and Fatigue Resistance
A registered trial is testing whether 660 nm LED therapy improves endurance and speeds recovery in university athletes after strenuous workouts.
- 660 nm LED Improves Blood Flow and Reduces Fatigue
Research shows red LED light at 660 nm boosts nitric oxide for better circulation, cuts fatigue, and supports faster post-workout muscle repair.
- 660 nm LED Matches Ice Baths for Recovery
Although this study saw no difference in creatine kinase levels, 660 nm LED therapy still supported recovery just as well as ice baths without discomfort.
HeroSeries panels and HeroBelt use 660nm red light

810nm Research
- Review: 810 nm PBM Enhances Muscle Growth and Recovery
This review notes that photobiomodulation with 810 nm boosts muscle mass, reduces inflammation and oxidative stress, and supports recovery by increasing cellular energy—beneficial for athlete performance.
- Review: 810 nm Improves Athletic Strength and Recovery
Studies show that pre-exercise 810 nm PBM improves strength, lowers damage markers, and supports post-training recovery—especially effective at 100 mW output in soccer athletes.
- 810 nm LED Boosts Strength and Reduces Fatigue in Athletes
In trained subjects, 810 nm PBM increased strength by 15%, reduced fatigue, and promoted cell growth, making it useful for muscle regeneration and recovery.
- Pre-Exercise 810 nm PBM Enhances Performance
Pre-workout application of 810 nm LED light improved muscle output and recovery in athletes, with optimal results at specific energy and power settings.
All HeroSeries panels use 810nm NIR lig

830nm Research
- 830 nm LED as Pre-Conditioning Improves Repetitions in Biceps Exercise
Applying 830 nm LED before biceps contractions increased repetitions and reduced lactate and markers like creatine kinase, supporting better muscle endurance and recovery for athletes in strength training.
- 830 nm LED Therapy Relieves Delayed-Onset Muscle Soreness in Athletes
Athletes with DOMS from intense exercise received 830 nm LED light on sore muscles, resulting in significant pain relief over 48–72 hours, aiding faster recovery for training, though it didn’t affect muscle repair markers like creatine kinase.
- 830 nm LED Cuts Athlete Recovery Time by Half
Injured university athletes receiving 830 nm LED therapy returned to play in 9.6 days (vs. 19 expected), with full pain relief and high satisfaction, showing fast and safe recovery benefits.
- Review: 830 nm LED Aids Muscle Recovery and Growth
A narrative review found 830 nm LED reduced fatigue, inflammation, and CK levels in athletes, supporting quicker recovery and muscle growth when used before or after workouts.
- 830 nm LED Boosts Muscle Hypertrophy in Twin Study
In a case-control study with twins, 830 nm LED therapy during exercise enhanced muscle growth, performance, and gene expression for adaptation while reducing soreness.
- 830 nm LED Improves Grip Strength
In people with tennis or golfer’s elbow, 10 sessions of 830 nm LED therapy significantly reduced pain and improved grip strength compared to placebo, with lasting effects.
- 830 nm LED Maintains Strength After Exercise
After intense resistance training, 830 nm LED helped preserve muscle strength and reduce post-exercise decline, improving recovery for continued performance.
- 830 nm LED Improves Reps and Lowers Muscle Fatigue
Pre-conditioning muscles with 830 nm LED increased biceps repetitions and reduced lactate and CK, enhancing endurance for strength training.
- 830 nm LED Supports High-Intensity Training Recovery
Pre-workout 830 nm LED therapy reduced fatigue and improved recovery markers in athletes performing intense exercise, aiding muscle adaptation and growth.
- 830 nm LED Reduces Muscle Fatigue When Used Pre/Post Workout
A double-blind trial found applying 830 nm LED before or after exercise lowered muscle fatigue and enhanced recovery, making it valuable for bodybuilders and athletes.
HeroSeries panels use 830nm NIR light

850nm Research
- 850 nm LED Boosts Muscle Growth in Twin Study
Identical twins trained with or without 850 nm LED post-exercise. The LED-treated twin gained 20% more muscle volume, strength, and recovery markers, with gene shifts toward protein synthesis and reduced inflammation.
- 850 nm Full-Body LED Enhances Recovery in Soccer Players
Women’s soccer players using a red/NIR light bed (850 nm + 660 nm) recovered better despite less sleep, with lower heart rate and higher HRV—signs of enhanced recovery during heavy training loads.
- Review: 850 nm LED Increases Muscle Mass Post-Training
A review of human studies confirms 850 nm PBM boosts muscle growth, reduces inflammation, and accelerates recovery via mitochondrial improvements—supporting strength and endurance development.
- Review: 850 nm LED Improves Strength and Reduces Fatigue
A narrative review of 25 human trials found 850 nm LED therapy reduces muscle damage, soreness, and fatigue while improving strength and training recovery—ideal for athletes and bodybuilders.
HeroSeries panels and HeroBelt use 850nm NIR light
Did you know near-infrared (NIR) light is beyond our vision range? That’s why you won’t see our 810nm, 830nm, and 850nm LEDs — even though they’re working just as powerfully as the visible 630nm and 660nm ones
Devices informed by muscle recovery & growth research³
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Hero60 Tabletop Red Light Therapy Panel
Regular price $499.00 AUDRegular priceUnit price / per$599.00 AUDSale price $499.00 AUDSale -
Hero300 Red Light Therapy Panel
Regular price From $1,249.00 AUDRegular priceUnit price / per$1,399.00 AUDSale price From $1,249.00 AUDSale -
Hero960 Red Light Therapy Panel
Regular price $3,499.00 AUDRegular priceUnit price / per$3,999.00 AUDSale price $3,499.00 AUDSale -
HeroBelt Red Light Therapy Belt
Regular price $349.00 AUDRegular priceUnit price / per
Other red light therapy research
- Sleep quality
- Pain and inflammation
- Collagen production, skin and wrinkles
- Hair growth
- Neural function, depression and brain diseases
- ATP production and mitochondria function
- Injuries and wounds
- Eyesight
See the studies for yourself by clicking the links above or visit our RLT Wavelength Research page for an overview.