All products featured on Glamour are independently selected by Glamour editors. However, when you buy something through our retail links, Condé Nast may earn an affiliate commission. Between Jennifer ...

Does collagen powder actually work? We take a look. But what is it that you, in particular, need? To find out, you'll first need to learn the difference between collagen and collagen peptides. You'll ...

Between Jennifer Aniston’s long-documented love for her collagen peptides (she’s tried the injections), and Hailey Bieber’s fan-favorite Erewhon smoothie that is chock-full of collagen, it’s safe to ...