The average adult uses seven different skin-care products each day, including fragrances, astringents, moisturizers, sunscreens, skin cleansers, hair care items, deodorants/antiperspirants, and hair and nail cosmetics.
Sometimes, even after years of use, a cosmetic product can cause an allergic reaction.
If a problem arises, the American Academy of Dermatology urges you visit a dermatologist, who can diagnose and treat the problem. Patch testing may determine if you have an allergy to specific ingredients in these products.
A dermatologist can tell you what should be avoided, and can recommend a personal skin care regimen.