Form http://www.instah.com/beauty-tips/what-are-freckles/
The sun and the tanning lights emit ultraviolet (UV) rays. When exposed to them, the upper layer of the skin called the epidermis thickens and the melanocytes, which are the pigment-producing cells, produce melanin at an increased rate. It does this as a natural protection against further exposure to sun.
Form http://www.instah.com/beauty-tips/what-are-freckles/
ReplyDeleteThe sun and the tanning lights emit ultraviolet (UV) rays. When exposed to them, the upper layer of the skin called the epidermis thickens and the melanocytes, which are the pigment-producing cells, produce melanin at an increased rate. It does this as a natural protection against further exposure to sun.
something about the sun and tanning.
ReplyDelete