Reference
What is Ipamorelin?
Ipamorelin is a pentapeptide — five residues, which makes it one of the shorter synthetic chains in this range.
Classification
| Type | Peptide |
| Chain length | 5 amino acid residues |
| Family | Growth hormone secretagogue |
| Origin | Developed at Novo Nordisk in the 1990s |
| Supplied as | Lyophilised powder in a sealed vial |
It belongs to a class of designed molecules rather than a natural sequence: growth hormone secretagogues are built to bind a receptor, and their amino acid composition follows from that target rather than from anything found in the body. Several contain unusual residues that do not appear in natural proteins at all.
Where it sits by length
At 5 residues, Ipamorelin is a short chain — an oligopeptide by the usual convention. The boundary is a convention, not a rule of chemistry — chains up to roughly fifty residues are generally called peptides.
What this page does not cover
Nothing here describes what Ipamorelin does, what it is used for, or whether it is safe. We publish analytical results and ship parcels; we give no guidance on dosing, preparation or use, and that applies to our reference pages as much as to the product pages. The person to ask about any of that is a registered prescriber.
Related by family
Where it came from
Ipamorelin was described in 1998, in a paper whose point was selectivity rather than potency.
1998 — Denmark. When was ipamorelin created?
Further reading
Ipamorelin vs CJC-1295 — two peptides, two hormones, two receptors, often one vial.
More on Ipamorelin
See Ipamorelin in the range · What is a peptide? · Discovery timeline · All reference
