Cosmetics are regulated by the Center for Food Safety and Applied Nutrition , the same branch of the FDA that regulates food. Cosmetic products are not, in general, subject to premarket approval by the FDA unless they make "structure or function claims" that make them into drugs (see Cosmeceutical ). However, all color additives must be specifically FDA approved before manufacturers can include them in cosmetic products sold in the . The FDA regulates cosmetics labeling, and cosmetics that have not been safety tested must bear a warning to that effect.
Checking for a drug interaction before it occurs can drastically lower your chance of a problem. Usually, your doctor and pharmacist will have already done this with your prescription medications, but it’s a good idea to double check and learn about these medications yourself. If you use any over-the-counter (OTC) medicine, including vitamins, herbal or food supplements, be sure to review these products for interactions with your prescription medications, too. Ask your pharmacist or doctor for advice if you are confused by the medical jargon.