You may need a thick skin to take this test. NYC dermatologist Dr. Shereene Idriss — the face of the popular “face basting” movement — is sharing a simple, free test to determine if you have oily, dry ...

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 ...

There are five skin types: normal, dry, oily, combination, and sensitive. You can test your skin type at home by observing oil, dryness, or redness on your skin. Age, sun damage, and hormonal changes ...