Cosmetic Allergy Testing
A simple way to determine whether or not you may be allergic to a certain cosmetic: dampen an area of skin along your inner arm with tepid water. Apply the cosmetic you think you might be allergic to and leave it in place for 24 hours. If, after this length of time, there is some reaction, i.e. itchiness or redness, this indicates that your skin may be allergic to this cosmetic.
Tags: