Red Light and Infrared Therapy: How it Supports Mitochondria, Skin Health and Recovery.
Red light and near infrared therapy have become increasingly popular in wellness, skin care and recovery clinics. Research suggests these specific wavelengths of light may support cellular energy production, improve akin appearance, reduce inflammation, and enhance recovery after stress or injury.
Unlike ultraviolet light (UV) from the sun, red and near-infrared light doesn’t burn the skin or damage DNA. Instead, they work deeper within the tissues to support normal cellular fucntion and repair processes.
What is red light and infrared therapy?
Red light therapy, also know as photobiomodulation, usurps specific wavelengths of viable red and near red infrared light to stimulate cells. These wavelengths penetrate the skin and interact with structures inside the cell called mitochondria, the ‘powerhouse’. Near infrared light penetrates deeper into tissue that visible red light, which is why the wavelengths are combined for broader benefits.
How does it support mitochondria?
Mitochondria are the energy producing structure of the cell as they generate adenosine triphosphate (ATP), which is the body’s main source of cellular energy.
During red light therapy, light energy is absorbed by an enzyme inside the mitochondria called cytochrome c oxidase. This interaction allows the mitochondria to work more efficiently, increasing ATP production.
When cells have greater available energy, they may be better able to:
- Repair damage
- Reduce oxidative stress
- Support tissue regeneration
- Improve circulation
- Manage inflammation more efficiently
This mitochondrial effect is believed to be the ready why this type of therapy can influence multiple systems throughout the body.
How does it support and benefit skin?
Studies suggest regular use of red light therapy may help:
- Stimulate collagen production
- Improve elasticity
- Reduce the appearance of fine lines and wrinkles
- Calm redness and irritation
- Support would healing
- Improve overall skin texture and tone
Collagen is a structures protein responsible for skin fitness and elasticity. As collagen naturally declines with age, skin may become more thinner and develop wrinkles. Red light therapy may help encourage collagen synthesis, contributing to smoother, healthier looking skin
How does it support hair growth and scalp health?
Emerging research indicates red light therapy may support hair growth in people with pattern hair thinning. It may help improve circulation to hair follicles and extend the hair growth cycle. Results are typically gradual and require consistent use over several months
How does it reduce inflammation and support recovery?
Inflammation plays a role in everything from muscles soreness to joint discomfort and slow healing. Research indicates red and near-infrared light may help reduce inflammatory markers while supporting blood flow and cellular repair.
Because of this, athletes and recovery clinics often use red light therapy to support:
- Muscle recovery
- Exercise soreness
- Joint stiffness
- Tendon irritation
- Post workout recovery
Sources:
Taylor, K. (2026). Red Light Therapy Benefits? How Cells Heal + Expert Next Steps | Ubie Doctor’s Note. [online] Ubiehealth.com. Available at: https://ubiehealth.com/doctors-note/red-light-therapy-benefits-cells-healing-expert-4323e2.
