Ipamorelin
In stockNNC 26-0161Synthetic pentapeptide, Aib-His-D-2-Nal-D-Phe-Lys-NH2, from a series derived from growth hormone-releasing peptides. Researchers study its receptor pharmacology at the growth hormone secretagogue receptor and in rodent models.
Supplied as a single-chamber lyophilized vial with a colour-coded cap (Muscle Growth).
Research literature, not dosing or treatment instructions.
- Growth hormone secretagogues act at a G-protein-coupled receptor of the pituitary and hypothalamus, cloned in 1996; ghrelin was later identified as its endogenous ligand. (PMID 8688086, PMID 10604470)
- The pharmacology paper describes ipamorelin's growth hormone releasing activity in vitro and in animals and its selectivity against other pituitary hormones. (PMID 9849822)
- A medicinal-chemistry series derived from ipamorelin measured growth hormone release in vitro and in animals. (PMID 9733495)
Add the solvent slowly along the vial wall; swirl gently, never shake. Allow to dissolve fully. Six-step guide with photos →
Concentration calculator only. Enter the mass being calculated; blend components are not added automatically. Products are for in-vitro research.
Refer to the product label and supplier documentation for storage conditions. Lot-specific storage and expiry information is not available here.
Each certificate is published with its lot number.
Questions about Ipamorelin
How much published research is there on Ipamorelin?
The research library's PubMed search for Ipamorelin returned 50 records on 5 October 2026, 9 of them reviews. The library lists 7 studies chosen for what they measured. ClinicalTrials.gov lists 3 registered studies naming Ipamorelin, 2 of them sponsored by Helsinn Therapeutics (U.S.), Inc (checked 5 October 2026).
Is Ipamorelin an approved medicine?
No medicinal product containing Ipamorelin is listed in Drugs@FDA (checked 5 October 2026), and the research material we supply is not a medicine. It is supplied for in-vitro laboratory research only, not for human or veterinary use.
Which receptor does ipamorelin act on?
Growth hormone secretagogues act at a G-protein-coupled receptor of the pituitary and hypothalamus that was cloned in 1996, and ghrelin was later identified as its endogenous ligand (PMIDs 8688086 and 10604470).
How does Ipamorelin differ from GHRP-2?
Ipamorelin and GHRP-2 are both synthetic growth hormone secretagogues acting at the growth hormone secretagogue receptor. Ipamorelin is a pentapeptide and GHRP-2 a hexapeptide.
How is the identity of Ipamorelin confirmed on a certificate?
A research-grade certificate of analysis typically reports identity by mass spectrometry and purity by HPLC. The mass result is read against the average molecular weight of 711.9 Da listed on this page. The research library's guide to reading a certificate explains each field.
Is this product for human use?
No. Peptency products are supplied for in-vitro research only. Not for human or veterinary use, not for diagnosis or therapy.
Where can I find shipping information?
Current shipping rates and delivery information are on the Shipping & payment page, and the rates that apply to your order are shown at checkout.
Often studied with
For research use only. Not for human or veterinary use.
What is Ipamorelin?
Ipamorelin is the synthetic pentapeptide Aib-His-D-2-Nal-D-Phe-Lys-NH2, a growth hormone secretagogue identified within a series of compounds derived from growth hormone-releasing peptides. Published work covers receptor pharmacology, rodent studies and one pharmacokinetic study in volunteers. We supply Ipamorelin as a lyophilized vial for in-vitro laboratory research only.
What are the chemical identifiers of Ipamorelin?
Ipamorelin has the molecular formula C38H49N9O5, an average molecular weight of 711.9 Da and CAS number 170851-70-4.
Chemistry checked against PubChem (CID 9831659), 5 October 2026; full chemistry record in the research library.
What does published research on Ipamorelin cover?
A PubMed search for Ipamorelin returned 50 records on 5 October 2026, 9 of them reviews. Our research library lists 7 of these studies, chosen for what they measured.
- Growth hormone secretagogues act at a G-protein-coupled receptor of the pituitary and hypothalamus, cloned in 1996; ghrelin was later identified as its endogenous ligand. (Howard et al., Science, 1996; PMID 8688086; Kojima et al., Nature, 1999; PMID 10604470)
- The pharmacology paper describes ipamorelin's growth hormone releasing activity in vitro and in animals and its selectivity against other pituitary hormones. (Raun et al., Eur J Endocrinol, 1998; PMID 9849822)
- A medicinal-chemistry series derived from ipamorelin measured growth hormone release in vitro and in animals. (Ankersen et al., J Med Chem, 1998; PMID 9733495)
Mechanism, every cited study and the regulator records are on the Ipamorelin page of the research library. Papers are listed by what they measured, not as evidence of any use.
How is Ipamorelin supplied and stored?
Ipamorelin is supplied as a lyophilized (freeze-dried) powder in a sealed vial, for in-vitro laboratory research only. Our stated storage condition for the sealed lyophilized vial is 2 to 8 °C. The label and the lot certificate carry the lot-specific storage condition and expiry date.
What is the regulatory status of Ipamorelin?
Drugs@FDA lists no application naming ipamorelin as an active ingredient (checked 5 October 2026).
The WADA 2026 Prohibited List names this substance under S2.2.4. A WADA entry is a sporting rule, not a statement about legality outside sport.
A regulator record is information about a database entry. It is not advice and not a statement that any use is lawful or unlawful in any country. How regulators approach research peptides.
Which related research pages and compounds are listed?
- Ipamorelin: chemistry, literature and regulatory status
- Ipamorelin compared with GHRP-2
- Growth hormone secretagogue receptor
- How to read a certificate of analysis
Related compounds in the catalog: