Any of various organic acids containing both an amino group and a carboxyl group, these are the building blocks that link together to form the proteins necessary to give your skin its structural support.

Perhaps you have heard of collagen or elastin, these are the key to a healthy skin since they are what prolong aging. Skin creams with amino acids such as vitamin E cream, day creams, night creams or fade creams, will help your skin restore the lost amino acids that are destroyed with external toxins brought about by UV light or other environmental poisons.