Melanin is a broad term for a group of natural pigments produced by cells called melanocytes, located in the basal layer of the epidermis. It's responsible for the color of your skin, hair, and eyes. More importantly for aesthetic treatments, melanin is the primary chromophore (light-absorbing molecule) targeted by lasers in hair removal, tattoo removal, and pigmentation treatments.
Why Melanin Matters in Laser Treatments
Lasers work by targeting specific chromophores. In hair removal, the laser targets melanin in the hair shaft to heat and damage the follicle. In tattoo removal, it targets the ink pigments. The challenge: if there's a lot of melanin in the surrounding skin (darker skin tones), the laser can't always distinguish between the target and the skin. This is why choosing the right laser wavelength and settings for your skin type is critical for safety.