Legal Status and Risks

Online, ipamorelin is often called the mildest or cleanest peptide of its type. That reputation rests mostly on a single pig study from 1998. From a regulatory point of view it is an experimental drug whose development stopped before approval.

Anti-Doping Rules

The World Anti-Doping Agency's Prohibited List covers growth hormone releasing factors in section S2.2.4. Under the heading of growth hormone secretagogues and their mimetics, it names ipamorelin alongside anamorelin, capromorelin, ibutamoren, macimorelin and tabimorelin. Everything in section S2 is prohibited in and out of competition. Laboratories have published urine tests for ipamorelin and its breakdown products, and have updated them after modified versions appeared in seized material.

Medicines Regulation

• European Union: no product containing ipamorelin holds a marketing authorisation, and promoting it with health claims would bring it under medicines legislation.
• United Kingdom: the MHRA has not licensed any ipamorelin product.
• United States: the FDA has not approved ipamorelin as a drug.
• Other countries: rules on buying, importing and holding research peptides vary, so local law needs to be checked.

Unanswered Safety Questions

• Limited human exposure: published human data cover fewer than 200 people, most of whom received it for up to a week in hospital.
• More than growth hormone: the ghrelin receptor also affects appetite, fat storage and insulin, and animal studies showed changes in all three.
• Unknown long-term effects: repeated stimulation of the growth hormone and IGF-I system over months has not been studied with this compound.
• Modified copies: forensic labs have found glycine-extended versions in illicit products, which are a different substance.
• Purity: research-grade material is not made to medicine standards, so identity and content can differ from the label.

Strictly for the Laboratory

Research-grade ipamorelin is a reagent for experiments. It comes with no approved dose, no product information leaflet and no pharmacovigilance system.

The Short Version

Ipamorelin is a useful tool for scientists who study the ghrelin receptor and growth hormone release. It is neither a medicine nor a dietary supplement. Competitive athletes risk a ban, and anyone thinking about it for health reasons should talk to a doctor.

This page is general information, not legal advice.