NYC dermatologist Dr. Shereene Idriss is sharing a simple, free test to determine if you have oily, dry, or combination skin. N_studio - stock.adobe.com You may need a thick skin to take this test.

A few months ago, I got hit with what my dermatologist called a “pretty severe” allergic reaction: The lower half of my face was hot to the touch and as red as a stop sign. And if that wasn’t enough, ...

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 ...