Seeing this referenced everywhere the past few weeks. No idea what is about? Is it a new social media trend or something?

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[–] 4 points 3 weeks ago

There are a lot of different peptides. While there are some that are used by bodybuilders, there are others like collagen, which people take to improve their hair, nails, and skin. Collagen supplements are available anywhere in the US, some of the others are only available from "certain sources" (as noted above).

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