There are three major factors which determine the colour of the skin. They are:

1. The thickness of the fat underlying your skin which gives you the yellow white skin tone. This basically depends on the type of diet consumed.

2. The amount of oxygen present in your blood which determines the reddish blue tone of the skin. This depends on the iron content in the body and oxygen in the environment.

3. The amount of melanin produced which gives the wide color ranging from black to wheatish color of the skin. This is fundamentally genetic and depends on the amount of sun exposure also.

These factors also determines the condition of the skin and later the anti aging process in the skin. There are some anti aging wrinkle cream which slows down the natural process of aging.