
Growth Hormone
Ipamorelin
Ipamorelin (selective GHS-R1a agonist)
Also known as NNC 26-0161
Ipamorelin is a synthetic pentapeptide agonist at the growth hormone secretagogue receptor (GHS-R1a). Its defining research characteristic is selectivity: unlike earlier secretagogues such as GHRP-6 and GHRP-2, it shows minimal effect on ACTH, cortisol, and prolactin at comparable doses in animal models. That clean profile is precisely why it remains a useful tool compound for isolating GH-axis effects.
Research applications
- GHS-R1a receptor selectivity and binding studies
- Pituitary somatotroph response assays
- Comparative secretagogue selectivity profiling
- Pulsatile secretion pattern research
Storage
Store lyophilized powder at -20°C protected from light. Reconstituted solution stable at 2-8°C for up to 30 days.
Reconstitution
Reconstitute with bacteriostatic water directed down the vial wall. Swirl gently.
Published literature
53 papers indexed on PubMed for Ipamorelin. Showing 6, reviews first.
- 01Therapeutic Peptides in Orthopaedics: Applications, Challenges, and Future Directions
Rahman OF et al. · J Am Acad Orthop Surg Glob Res Rev · 2026
- 02Injectable Peptide Therapy: A Primer for Orthopaedic and Sports Medicine Physicians
Mayfield CK et al. · Am J Sports Med · 2026
- 03Safety and Efficacy of Approved and Unapproved Peptide Therapies for Musculoskeletal Injuries and Athletic Performance
Mendias CL, Awan TM · Sports Med · 2026
- 04Therapeutic Peptides in Aesthetic, Metabolic and Endocrine Conditions: Effects, Safety, Clinical Applications, and Future Perspectives
Renke G, Chinellato L · Int J Mol Sci · 2026
- 05Therapeutic peptides in gerontology: mechanisms and applications for healthy aging
Mavrych V et al. · Front Aging · 2026
- 06Beyond the androgen receptor: the role of growth hormone secretagogues in the modern management of body composition in hypogonadal males
Sinha DK et al. · Transl Androl Urol · 2020
Indexed from PubMed, 2026-07-19. We link to sources rather than reproducing them.
Related compounds

CJC-1295 (no DAC)
5–10mg · COA published
Modified GRF (1-29) analog with four amino acid substitutions conferring resistance to enzymatic degradation.
- Purity
- 99.777%
- 5 lab certificates

Tesamorelin
10–15mg · COA published
Stabilized 44-amino-acid GHRH analog — the longest GHRH sequence in common research use.
- Purity
- 99.174%
- 6 lab certificates

IGF-1 LR3
1mg · COA published
83-amino-acid IGF-1 analog engineered for markedly reduced binding to IGF binding proteins.
- Purity
- 98.587%
- 3 lab certificates
The certificate comes first
Every compound’s independent laboratory analysis is published before you buy, not sent on request.
Verify it without us
Each certificate carries a laboratory key. Enter a batch code and check it at the lab directly.
Ships from Orlando, FL
Orders dispatch within 1 business day of cleared payment, with tracking emailed when the parcel is handed to the carrier. Track any order, account or not.
A person answers
Write to [email protected] and a human replies — no ticket bot, no queue number.
How Ipamorelin compares
Side-by-side against the compounds researchers most often weigh it against, with price per milligram, mechanism and the published certificate for each.
Research goals that include Ipamorelin
The research areas this compound is grouped under, each with the other compounds studied alongside it and the published certificates for the group.
Ipamorelin
From $39