Melanin, its benefits!

“Melanin is a dark brown pigment present in the body; it is responsible for the coloring of hair and skin. During prolonged sun exposure, the body produces more melanin, causing the skin to darken to protect against the harmful effects of ultraviolet radiation.

Also read:

UVA, UVB, why are they harmful?
Sun protection, what are the characteristics?
Preparing your skin for the sun, tips!“