Some food for thought: On average, women use 12 personal care products daily, which amounts to about 168 chemical ingredients, according to the Environmental Working Group (EWG). Splurging on a new ...

Patch testing describes a procedure to help identify what ingredients might irritate a person’s skin. Many skin care products contain chemicals that can cause an allergic reaction when a person ...

Using a new skin care product without testing it first can potentially cause allergic contact dermatitis, an inflammatory skin condition in which the immune system overreacts to an ingredient in the ...