Are peptides steroids?

No. A peptide is a short chain of amino acids. A steroid is a hormone built on a four-ring, fat-based frame. That family includes testosterone. Tesamorelin, semaglutide, and BPC-157 are peptides. Testosterone is a steroid, with its own pages on this site, not a peptide. Some growth hormone releasers get talked about next to steroids at the gym, because people use both to change their body. That is a social grouping, not chemistry. MK-677 is a small molecule, not a peptide and not a steroid. Being talked about together does not make them the same kind of molecule. This site does not rank them.

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.