What is Red Light Therapy
Red light therapy, also known as photobiomodulation (PBM), uses specific wavelengths of red and near-infrared light that are absorbed by the body at a cellular level.
Unlike ultraviolet (UV) light, which can damage the skin, red and near-infrared wavelengths are non-invasive and have been widely studied for their potential role in supporting cellular function, recovery and overall wellbeing.
Today, red light therapy is used by wellness enthusiasts, athletes, clinics and healthcare professionals around the world as part of their daily recovery and self-care routines.
How Does Red Light Therapy Work?
Every cell in the body contains structures called mitochondria, often referred to as the “powerhouses” of the cell.
Mitochondria are responsible for producing adenosine triphosphate (ATP), which serves as the primary source of cellular energy.
Research suggests that specific wavelengths of red and near-infrared light may help support mitochondrial function, potentially improving the body’s ability to produce ATP and maintain normal cellular processes.
This increased cellular energy is believed to play a role in many of the benefits commonly associated with red light therapy.
Step 1 — Light Penetration
Step 2 — Mitochondrial Absorption
Step 3 — Increased ATP Production
Step 4 — Cellular Response
Step 5 — Observable Effects
Why Wavelengths Matter
Not all light is the same.
Professional red light therapy systems typically use carefully selected wavelengths that have been extensively studied within photobiomodulation research.
Red Light (630nm–660nm)
Red light primarily interacts with the surface layers of the body and is commonly used in research relating to:
- Skin appearance and rejuvenation
- Collagen production
- General skin wellness
- Surface-level tissue support
Near-Infrared Light (810nm–850nm)
Near-infrared light penetrates deeper into the body’s tissues and has been studied for its potential role in:
- Muscle recovery
- Exercise performance
- Joint comfort
- Deep tissue support
Many modern systems combine both red and near-infrared wavelengths to provide comprehensive coverage.
Areas of Ongoing Research
Photobiomodulation continues to be an active area of scientific research.
Studies have explored the potential of red and near-infrared light in relation to:
- Cellular energy production
- Recovery and performance
- Skin health and appearance
- Exercise recovery
- General wellbeing and wellness
While research is ongoing, interest in red light therapy continues to grow across both home and professional settings.
Professional-Grade Technology
At Redwaves, we focus on high-output systems that utilise carefully selected wavelengths commonly used in photobiomodulation research.
Our goal is to provide access to premium-quality red light therapy systems supported by education, transparency and evidence-based information.
Whether you’re looking to support your wellness routine at home or incorporate red light therapy into a professional environment, our systems are designed with performance, reliability and ease of use in mind.
Scientific Research & Further Reading
Photobiomodulation (red and near-infrared light therapy) is an active area of scientific research. The studies below explore potential applications of photobiomodulation across a range of health and wellbeing outcomes.
Whole-Body Photobiomodulation and Chronic Pain
Researchers supported by the NHS and Health Research Authority investigated whole-body photobiomodulation therapy in individuals with chronic widespread pain. The feasibility trial found the treatment was well accepted by participants and reported promising effects on pain, fatigue, sleep and wellbeing, supporting the need for larger clinical trials.
Cellular Energy and Photobiomodulation
Research from the University of Birmingham explores how red and near-infrared light may interact with mitochondria, supporting ATP (cellular energy) production and influencing biological processes involved in tissue repair and recovery.
https://www.birmingham.ac.uk/research/activity/dentistry/research/photobiomodulation/
Large-Scale Evidence Reviews
A recent umbrella review assessed evidence from 204 randomised controlled trials involving more than 9,000 participants. The review found photobiomodulation showed beneficial effects for several conditions and outcomes, while also highlighting the need for further high-quality research and standardised treatment protocols.
https://link.springer.com/article/10.1186/s13643-025-02902-3/
Research into Eye Health
Clinical studies have investigated photobiomodulation for dry age-related macular degeneration (AMD). Early results from the LIGHTSITE III trial demonstrated encouraging findings and have led to larger follow-up studies involving significantly more participants.
Whole-Body Photobiomodulation and Fibromyalgia
Randomised clinical trials and feasibility studies investigating whole-body photobiomodulation have reported improvements in pain, quality of life and other wellbeing measures in participants with fibromyalgia. Researchers have concluded that larger studies are warranted to further evaluate these findings.
https://bmjopen.bmj.com/content/bmjopen/12/6/e060058.full.pdf/
Important Information
The information provided on this website is intended for educational purposes only and should not be considered medical advice.
Our products are not intended to diagnose, treat, cure or prevent any disease. If you have a medical condition or health concerns, please consult an appropriately qualified healthcare professional before using red light therapy.