Lllt

The Nitric Oxide-DHT Connection: Why Two Wavelengths Matter for Hair Growth

Most explanations of light therapy for hair loss stop at blood flow and inflammation. But the biology may go much deeper. Research shows that specific combinations of light wavelengths can influence the pathway that produces DHT itself, using nitric oxide, a signaling molecule the body already makes.

LED vs. Laser Caps: What the Physics (and the Data) Actually Say

Laser or LED, which is better for hair growth? The answer is more nuanced than the name of the light source. Learn why wavelength, coverage, penetration, dose, and clinical evidence are what really matter, and what makes Revian’s dual-wavelength 620 + 660 nm LED technology different.