Do you have freckles? If you don't, chances are you probably know someone who does. But what are they exactly?
Freckles appear on the skin as small tan or light brown spots. While they usually appear on the face, they can also be found on any skin exposed to the Sun, such as the neck and shoulders.
Freckles are natural and not harmful. Even though some people with freckles don't like them and want to get rid of them, they're certainly not a sign of any health problems.
Freckles are just skin cells that contain a pigment (color) called "melanin." Melanin is a chemical made by skin cells called "melanocytes." Melanin helps to protect the skin from the Sun's harmful ultraviolet rays by reflecting or absorbing them.