If only you could pop a pill to make all your skin and hair woes magically disappear, right? It turns out you could—well, sort of.

Lucky for us, these “magic pills” are no longer figments of our collective imagination. They now exist and most of them have real science behind them. Nutricosmetics. Beauty supplements. Skin food. Hair and nail vitamins. Whatever you name it, they all make clear skin, shiny hair and healthy nails possible by giving your body an extra boost of nutrients you are otherwise not getting from food.

To learn more about how beauty supplements work—and to get some tips on how to choose the right one for you—we spoke with Corina Crysler, one of North America’s leading natural health product experts and Co-Founder and formulator of GliSODin Skin Nutrients. Here are seven things we learned from her.