Understanding Red Light Therapy: How It Works and Its Benefits
- Kubo Wellness
- Nov 16, 2025
- 3 min read
Red light therapy (RLT) has gained attention as a promising approach to support health and wellness. Many people at Kubo Wellness in Derby and beyond are exploring this treatment to improve skin health, reduce pain, and boost overall vitality. But what exactly is red light therapy? How does it work, and what benefits can it offer? This post breaks down the essentials of RLT, explaining the science behind it and highlighting practical uses for those interested in red light therapy.

What Is Red Light Therapy?
Red light therapy is a non-invasive treatment that uses specific wavelengths of red and near-infrared light to stimulate cellular function. Unlike ultraviolet (UV) light, which can damage skin, red light penetrates the skin safely and encourages natural repair processes. This therapy is sometimes called photobiomodulation (PBM), referring to how light influences biological activity at the cellular level.
The light used in RLT typically falls within the 600 to 1000 nanometer range. These wavelengths reach beneath the skin’s surface to interact with mitochondria, the energy-producing parts of cells. By enhancing mitochondrial function, red light therapy supports cell regeneration, reduces inflammation, and improves circulation.
How Red Light Therapy Works
The key to red light therapy lies in its interaction with mitochondria. Mitochondria produce adenosine triphosphate (ATP), the molecule cells use for energy. When exposed to red and near-infrared light, mitochondria absorb photons, which boosts ATP production. This extra energy helps cells repair damage, reduce oxidative stress, and function more efficiently.
Here’s a simplified overview of the process:
Light absorption: Red and near-infrared light penetrates the skin and is absorbed by mitochondrial chromophores.
ATP increase: Absorption triggers increased ATP production, providing more energy for cellular activities.
Cell repair and growth: Enhanced energy supports faster repair of damaged tissues and promotes new cell growth.
Reduced inflammation: Light exposure helps lower inflammation by influencing signalling molecules and immune responses.
Improved circulation: RLT can stimulate blood flow, delivering oxygen and nutrients to tissues more effectively.
This combination of effects explains why red light therapy has a wide range of potential benefits.
Benefits of Red Light Therapy
People turn to red light therapy for various reasons, from skin care to pain relief. Research and clinical experience suggest several key benefits:
Skin Health and Appearance
Red light therapy is popular for improving skin tone, texture, and elasticity. It stimulates collagen production, which helps reduce wrinkles and fine lines. Many users report:
Reduced signs of aging
Faster healing of wounds and scars
Improved skin conditions like acne, eczema, and psoriasis
Pain Relief and Inflammation Reduction
RLT can help manage chronic pain conditions such as arthritis, tendonitis, and muscle soreness. By reducing inflammation and promoting tissue repair, it supports faster recovery from injuries and decreases discomfort.
Athletes and active individuals often use red light therapy to speed up muscle recovery after workouts. This benefit is especially relevant for those in Derby who engage in sports or fitness routines.
Enhanced Muscle Recovery and Performance
RLT can improve muscle endurance and reduce fatigue. Some studies show that RLT before or after exercise helps muscles recover more quickly and perform better. This makes it a useful tool for biohackers and fitness enthusiasts looking to optimize their training.
Improved Circulation and Cellular Energy
Better blood flow means more oxygen and nutrients reach tissues, supporting overall health. Increased ATP production also boosts energy levels at the cellular level, which can enhance healing and vitality.
Mental Health and Cognitive Function
Emerging research suggests red light therapy may support brain health by reducing inflammation and oxidative stress in neural tissues. Some users report improved mood, focus, and reduced symptoms of depression or anxiety after consistent use.
Safety and Considerations
Red light therapy is generally safe for most people when used correctly. It is non-invasive and does not involve UV radiation, so it does not carry the risks associated with sun exposure. Still, some precautions include:
Avoid direct eye exposure to intense red light.
Consult a healthcare provider if you have photosensitive conditions or are taking medications that increase light sensitivity.
Use devices from reputable sources to ensure proper wavelength and intensity.

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