Is MK-677 the same as a peptide?

No. MK-677 is a small molecule, chemically unrelated to the amino acid chains that make up peptides like ipamorelin or CJC-1295, even though it activates the same ghrelin receptor and produces a similar rise in growth hormone. Its oral bioavailability, taken as a pill rather than injected, is a direct result of not being a peptide, since most peptides are broken down in digestion before they can act.

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 growth hormone secretagogues. Sermorelin, tesamorelin, ipamorelin, CJC-1295, and the rest of the GHRH and ghrelin receptor family.