WHY DOES?

Why does skin come in different colors? a simple question but hard to understand, even science can't hardly explain the originality. They do have a tentative explanation about it, but surely no one knows. I belong to a brown complexion, i understood that the more "melanin" you have in your skin , you've got a darker skin. In a way " melanin" helps in protecting our skin from "UV" radiation which can easily cause "skin cancer". In other word, the lighter skin you have, is much dangerous for too much exposure to sunlight. That is why, in a research skin cancer for the darker complexions are lesser than those of the lighter one. Darker complexions definitely needs "UV" light rays,enough to build strong bones. Our skin needs "UV" light to help our body make Vitamin D, a vitamin absolutely necessary to build up strong healthy , tough and straight bones. Lots of problem arise if the UV light rays will be blocked out. The tendency will developed rickets, in which bones become soft or crooked and are easily broken. For girls who loved to whiten thier skin, they used "Whitening Lotion" with spf in it. Most of this products are very sellable part of Asia. Her e in America, they spent lots of money just to tan themselves. As i said before, too much "UV" is very dangerous to your skin.
I am little careful of myself of what product to use for protection.I found one which is for sensitive skin,fragrance free, waterproof, sweat proof and anti wrinkle free. Now i am wearing not much make up anymore... Just for your awareness. Thank you very much for dropping by reading my blog.