The Science of Laser Hair Growth
An evidence-based look at how low-level laser therapy (LLLT) has been studied for the scalp and hair — and why the 650nm wavelength is the most clinically validated choice for hair growth stimulation.
The short version
- Laser hair therapy — also called LLLT or photobiomodulation — uses specific wavelengths of light to support the scalp and hair follicles. No heat, no needles, no medication.
- Multiple placebo-controlled clinical trials and meta-analyses have measured increased hair density in both men and women.
- Luxuel uses 272 true 650nm laser diodes — the wavelength most extensively studied in peer-reviewed clinical trials for hair growth stimulation.
