melanin – the same pigment found in our skin and pigmented tissue of the iris, which is why, for example, people with very white skin usually have blond hair and blue eyes, whereas people with dark skin and naturally blond hair are quite uncommon.
How does it work?Melanin is produced by pigment cells called melanocytes, which are present in the hair follicle. Melanocytes produce two types of pigment:
- Eumelanin (black or brown in color)
- Pheomelanin (red or yellow)