Red light: 630 and 660 nm
Visible red light is absorbed mostly in the outer layers of skin. Skincare protocols focus here because these wavelengths reach the cells that produce collagen. 630 nm sits slightly shallower than 660 nm, which is why many masks and panels combine both.
Near-infrared: 810 to 850 nm
Near-infrared light is invisible and travels deeper into tissue. Recovery and joint programs rely on 810, 830 and 850 nm. Panels for gyms and clinics usually give these wavelengths a larger share of the LEDs.
Deep NIR: 940, 1060 and 1072 nm
Longer wavelengths are newer additions. They are used in premium panels and anti-aging masks to widen the spectrum. Because published research is thinner here, brands should describe them carefully in marketing.
Choosing a mix
For a spa skincare menu, a 630/660/850 mix is a strong default. For a recovery studio, add 810 and 830 nm. For a premium consumer panel, a seven-band spectrum gives you a clear story against competitors. We build all three as standard.