The History of Red Light Therapy From Sunlight to todays Red Light Therapy

The healing power of light has accompanied humankind for thousands of years. Ancient Egyptians, Greeks, and Romans already used sunlight and the glow of fire to heal wounds, relieve pain, and strengthen life energy. These early forms of heliotherapy are considered the origin of modern light medicine. In the 19th century, Danish physician Niels Ryberg Finsen discovered that specific wavelengths of light could have targeted therapeutic effects. For his pioneering work in light therapy, he received the Nobel Prize in Medicine in 1903 — a milestone in the evolution of modern phototherapy.

Ancient Egyptians, Greeks, and Romans already used sunlight and the glow of fire to heal wounds, relieve pain, and strengthen life energy. These early forms of heliotherapy are considered the origin of modern light medicine.

With the development of artificial light sources in the 20th century, the use of red light became independent of natural sunlight. Since the 1990s, the concept of Photobiomodulation (PBM) has gained increasing importance. During this time, NASA began studying the use of red and near-infrared light to promote wound healing and cell regeneration in astronauts — with remarkable results.

Today, red light therapy is established in numerous fields: medicine, sports performance, cosmetics, wellness, and longevity applications. Professional state-of-the-art systems such as the wellsystem RedWave series combine red and near-infrared light with innovative technology for an effective full-body experience.

Photobiomodulation uses defined light spectra to positively influence cells, tissues, and metabolic processes. The most effective among them are:

  • Red light (630–660 nm) – stimulates collagen production, promotes cell regeneration, and improves skin appearance.

  • Near-infrared light (approx. 850 nm) – penetrates deeper into the tissue, activates the mitochondria, and increases ATP production, i.e., the cells’ energy generation.

This supports numerous biological processes:

  • Increased cellular energy (ATP)

  • Improved blood circulation and metabolic activity

  • Activation of fibroblasts for firmer skin

  • Promotion of muscle, tendon, and tissue regeneration

  • Support of natural hormone balance (serotonin & melatonin)

  • These effects make red light a gentle, non-invasive, and scientifically backed therapy—completely free of chemicals or side effects.

Benefits of Red and Near-Infrared Light

  • No surgery, needles, or medication

  • Painless and pleasant treatment

  • Minimal to no side effects, even with regular use

  • Holistic application to activate the body

  • From regeneration and performance to skincare and wellness

  • Thousands of studies confirm its effectiveness

From Local Light to Full body light treatments

Originally, red light was used locally — for example, to treat small skin areas or wounds. Thanks to modern LED technology, full-body applications are now possible. Systems like the wellsystem RedWave use high-performance LEDs to deliver optimal light wavelengths across the entire body.

Applications – From Sports to Longevity

Today, red and near-infrared light are essential components of holistic wellness and health concepts. Typical areas of application include:

  • Medicine & Therapy: Pain relief, muscle relaxation, wound healing support

  • Sports & Recovery: Faster regeneration, reduced lactate, enhanced performance

  • Cosmetics & Skincare: Boosts collagen and elastin production, visible anti-aging effects

  • Wellness & Longevity: Deep relaxation, energy balance, and improved sleep

Conclusion

Modern red light therapy bridges ancient wisdom with cutting-edge innovation. It represents a new era of gentle, natural, and scientifically grounded health enhancement — effective, holistic, and inspiring.

With wellsystem RedWave, Red Light Therapy becomes a tangible experience for body and mind — strengthening energy, vitality, and overall quality of life.

Sources

  1. NASA: LED Light Therapy for Wound Healing (Johnson Space Center, 2001)

  2. Finsen, N.R. (1903): Phototherapy of lupus vulgaris – Nobel Lecture

  3. Harvard Medical School: Photobiomodulation and mitochondrial function, 2019