Learn / Ipamorelin

GH axis

Ipamorelin

Ipamorelin is a synthetic pentapeptide that acts as an agonist at the ghrelin receptor (GHS-R1a). It was developed in the 1990s as a growth-hormone secretagogue: a compound that prompts the pituitary to release growth hormone.

Structure and form

Sequence	Aib-His-D-2Nal-D-Phe-Lys-NH₂
Molecular formula	C38H49N9O5
Molecular weight	711.9 g/mol
Form	Lyophilised powder
Storage	−20 °C, protect from light

Research background

In animal studies it stimulated growth-hormone release with little effect on ACTH or cortisol, which is why it is often described as selective.

It has been investigated in clinical trials but is not an approved medicine in the UK or elsewhere.

Growth-hormone secretagogues, including ipamorelin, are on the World Anti-Doping Agency's prohibited list.

Storage and handling

Supplied as a lyophilised (freeze-dried) powder in a sealed 4 ml vial. Keep it sealed until use. Storage: −20 °C, protect from light. Once reconstituted, solutions are usually kept refrigerated at 2–8 °C and used promptly. Follow your laboratory's own protocols and safety data.

Is Ipamorelin approved for human use?

No. Ipamorelin is sold by vialinepeptides strictly for in-vitro laboratory research. It is not a medicine, food or cosmetic and is not for human or veterinary use. Nothing on this page is medical advice.

All products are sold strictly for in-vitro laboratory research. They are not medicines, food or cosmetics, and are not for human or veterinary use. Buyers must be 18 or over.