How red light impacts the scalp: what the science says
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What exactly is photobiomodulation?
Photobiomodulation (or low-level red light therapy) involves exposing tissue to specific wavelengths of light, typically between 630 and 660 nanometers for red light, and up to 850 nanometers for near-infrared light. This principle is not unique to hair care: it has been studied for several decades in dermatology and muscle recovery.
The mechanism at the hair follicle level
According to current research, red light is absorbed by the mitochondria in hair follicle cells, which could stimulate cellular energy production (ATP) and promote better local oxygenation. Some preclinical studies suggest that this mechanism could help prolong the hair's growth phase (anagen phase).
It is important to note that research on this topic is still developing, and results vary depending on the protocols used (wavelength, exposure duration, regularity).
What this means concretely for your routine
An LED cap like the one offered by Douciane is designed to deliver this light directly to the scalp, conveniently and repeatedly, as part of an overall hair care routine. It does not replace medical advice and is not a curative treatment, but it can be an complementary step to care for your scalp daily.
Frequently Asked Questions
Is red light the same as UV? No. The red light used here is in the visible spectrum and does not have the harmful effects associated with ultraviolet rays.
Is daily exposure necessary? Protocols studied in scientific literature generally rely on regular rather than occasional use; consult your device's instructions for the recommended frequency.
This information is provided for educational purposes and does not replace the advice of a healthcare professional.
