The excitement of trying a new skincare product can quickly turn into disappointment when redness, itching, or irritation appears hours later. Whether it’s a promising eye cream, revolutionary serum, ...

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 ...

Individuals on immunosuppressants should discontinue them prior to patch testing, if at all possible, to avoid tarnishing the test results, according to updated guidelines from the North American ...

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 ...

Any time you step outside of the simplest skincare regimen—whether you’re in pursuit of a good anti-aging approach, a thorough shave, or a potent exfoliant—you run a small risk of irritation. Everyone ...

If you regularly read skin care stories, you’ve probably come across the often-touted advice to patch test new products before trying them. (It’s certainly a suggestion SELF has made more than once!) ...