Health experts explain what peptides and collagen do, why most people do not need supplements, and when protein may be a better choice.

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 ...

A study in the National Library of Medicine shows promising research that adding collagen peptides into the diet can lead to various improvements in health. “Supplementing with collagen peptides can ...

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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 ...