Where do research peptides come from?

Nearly all of them are made by chemistry in a lab. They are built one amino acid at a time on a solid bead, not taken from animals or people. That is why a 15 amino acid peptide like BPC-157, or a longer one like semaglutide, can be made in bulk by any lab with the right gear. It is also why so many sellers can offer the same molecule at very different prices and purity.

Educational use only. This database summarizes published research and is not medical advice. Where a dose appears it is a record of what a trial or clinic ran, or what people describe doing, with its source attached. Nothing here is a recommendation for personal use.

Part of research peptides, the category. What research peptides are, legally and practically, before getting into specific compounds.