melanin
(1) English name: melanin.
(2) Any animal or plant structure with dark brown or melanin (such as skin, hair, choroid or black bean epidermis, potatoes exposed to the air).
(3) Any similar natural dark brown or melanin, especially due to tyrosine or 3,4-dihydroxyphenylalanine (or dopa for short).
Melanocytes can synthesize and secrete melanin, so they are a type of glandular cell. However, the biosynthesis of melanin is very complicated and is formed by the tyrosine-tyrosinase reaction in the chromosome (immature melanin).
Pigments are produced by organisms to fight against ultraviolet rays. Melanin is the most powerful pigment among all pigments, and it is very effective. When ultraviolet rays are irradiated to the chemical chain of melanin, the chemical chain of melanin vibrates at an extremely fast speed, converting 99% of harmful ultraviolet rays into harmless heat, thereby protecting the survival of organisms. This is why people living in Africa and people living on the plateau have heavier skin color than others.
INCI name Hexapeptide-2
Molecular formula C46H56N12O6
Molecular weight 873.01
- Eat more foods containing vitamin C and E or take vitamin C by mouth, eat less irritating foods such as beef, pickles, shrimp, crab, wine, coffee, etc., and avoid direct sunlight when you go out.
- Enough sleep is a good helper for repair.
- Use sunscreen in conjunction.