Standards for Natural and Organic Cosmetics If you are concerned about what you eat, and the levels of synthetic chemicals present in your food, the next logical step is to focus attention on what you put on your skin every day. Up to 60 percent of what is applied to the skin soaks through to the blood vessels where it is processed by the liver. The rest of the cosmetic is absorbed by the skin or evaporates away. For those who approach their health holistically, cosmetics warrant a closer vi.