As other people mentioned peptides are technically protein precursors. Recently there was the huge increase in the usage of Ozempic, which is a brand name of a peptide called Semaglutide. Other peptides supposedly have different effects on your body. But it’s a relatively new class of medication and for most we have no real data of any positive or negative effects.
Since one peptide was proven to work, suddenly a lot of snake oil salespeople jumped on the bandwagon trying to sell them as some kind of miracle supplements. Take them at your own risk. Might give you muscles. Or you might grow horns or something. Who knows, none of it is tested properly.








That’s one aspect. Although most of the marketing is not so much about weight loss, but muscle gain.
They are trying to convince gym people that the same way you can use GLP-1 to lose weight, there are other peptides out there that will grow your muscle without exercise. The same target group as for steroids basically.