Promises of glowing skin and stronger joints sound great. The science behind collagen supplements is more complicated.

Collagen powders, drinks, and gummies promise firm skin and fewer wrinkles, so it is no surprise they fill bathroom shelves ...

Collagen isn’t just one protein; it’s a whole family of proteins. And it’s the most abundant protein in the human body. We need collagen to build cartilage (connective tissue), skin and bones.

Collagen powders, capsules, or drinks — which form works best? Compare the benefits, costs, and effectiveness of collagen supplements for healthier joints and skin.