And many products claiming to contain useful ingredients often put more money into marketing than formulation. So, skip your favorite makeup brand’s new eye cream and opt for skin care ...

or itchy skin after using a skin-care product, you may have an allergy to one of its ingredients. While the irritation may be obvious, determining what led to your reaction might be unclear.

Lactic acid is the best exfoliating ingredient for dry, sensitive skin. Salicyclic acid is the best exfoliating ingredient for oily, acne-prone skin. Chemical exfoliants like alpha- and beta ...