Trending: Superfood Beauty

How your skin and hair can benefit from prickly pear, inulin, and more

"There's an increasing trend towards recognizing the interplay between inner and outer health," says Dendy Engelman, M.D., a New York City-based dermatologist. "We are seeing more emphasis on ingestible ways to achieve outward beauty and innovative ingredients from the nutrition space added to formulas."

Consuming these nutrients is always a good choice, but using them topically as well, whether in a thermal protectant, makeup primer or face cream, increases the prospect of healthier hair and younger-looking skin. Here, Engelman weighs in on six products worth trying.