The skin is our largest organ and the first place light therapy reaches. That is why red light first took hold in skincare — and today you find it in dermatologists' offices and home panels alike. What lies behind it?

Red wavelengths around 630 and 680 nm are absorbed in the upper layers of the skin, the epidermis and dermis. That is where cells called fibroblasts live — cells crucial for the look and elasticity of the skin.

Collagen: the scaffold of youthful skin

Fibroblasts produce collagen and elastin — the proteins that form the firm, elastic "scaffold" of the skin. With age and the effects of sun and pollution their production declines; the skin loses firmness and wrinkles appear. Research suggests that red light can gently stimulate fibroblasts to greater activity via the mitochondrial mechanism described earlier — more cellular energy means more building material.

Red light doesn't mask. It supports the cells to repair the skin themselves.

What the research says

Red light therapy is among the most studied applications of photobiomodulation in dermatology. Studies address several areas:

  • Elasticity and fine lines — several papers suggest improved skin texture and elasticity with regular use.
  • Healing and scars — red light is studied as support for wound healing and reducing the appearance of scars.
  • Inflammatory skin conditions — its effect on certain inflammatory skin conditions is being observed.
  • Recovery after stress — after sun exposure, exertion or minor irritation it may support tissue recovery.

It is worth staying sober: the quality and strength of evidence differ between areas, and effects tend to be gradual rather than instant. It is not a filter or make-up — it is long-term support for the cells.

Why add infrared light too

While red light acts on the surface layers, infrared wavelengths penetrate deeper and act on the subcutis and deeper structures. Combining the two therefore gives a more complete effect than red alone — surface and depth at once. That is why therapy panels combine multiple wavelengths.

How to do it in practice

For the skin, consistency works best: short sessions several times a week from about 15–30 cm. For facial therapy, simply close your eyes or use the protective goggles. And as always with light therapy, more does not mean better — stick to the recommended times.

Informational content that does not replace professional dermatological care. For skin problems, consult a dermatologist.

Surface and depth. From one panel.

HELIOR One combines red 630/680 nm with the infrared spectrum up to 1060 nm.

Discover HELIOR One →