Do cosmetics cause allergies?

Overuse of some cosmetics can cause allergies and other skin problems. Ingredients such as fragrance and preservatives can cause allergic reactions in some people. Skin reactions, which doctors call contact dermatitis, should be taken seriously. Even if you've used a cosmetic for years with no problems, you can develop an allergic reaction as you become sensitized to one or more of the ingredients.

Some cosmetics are labeled "allergy-tested" or "hypoallergenic," but products with these claims don't always offer a solution to cosmetic allergies. "Hypoallergenic" means only that the manufacturer feels that the product is less likely to cause an allergic reaction. Before placing this claim on the label, some companies conduct tests, and others simply don't include perfumes or other common problem-causing ingredients in their products. The claim "dermatologist-tested" on some cosmetic products only means that a skin doctor has tested the product to see if it will generally cause allergenic problems. Other label claims that carry no guarantee that they won't cause reactions include "sensitivity- tested" and "non-irritating."

"Natural" ingredients are extracted directly from plants or animal products as opposed to being produced synthetically. Natural ingredients can cause allergic reactions. If you have an allergy to certain plants or animals, you could have an allergic reaction to cosmetics containing those ingredients. For instance, "lanolin," extracted from sheep wool, is an ingredient in many moisturizers and is a common cause of allergies.

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