GENERAL HISTOLOGY

Detailed explanation-1: -Melanin protects skin from the sun’s ultraviolet rays. These can burn the skin and reduce its elasticity, leading to premature aging. People tan because sunlight causes the skin to produce more melanin and darken.

Detailed explanation-2: -Though best known for pigmentation, melanin also provides valuable protection from radiation. Five kinds of melanin have been observed in nature, with pheomelanin (the pigment in red hair) shown to absorb X-rays more efficiently than the more common eumelanin (black and brown pigments in dark hair).

Detailed explanation-3: -In its various forms, melanin fulfills a variety of biological functions, including skin and hair pigmentation and photoprotection of the skin and eye. Pigmentation of the skin results from the accumulation of melanin-containing melanosomes in the basal layer of the epidermis.

Detailed explanation-4: -The purpose of melanin is to protect your skin from sun damage. When you’re exposed to the sun, your skin creates even more melanin. Wearing sunscreen will limit this process. Sunscreen protects the skin from UV rays, which slow down your melanin production.