What Is Ipamorelin?
Ipamorelin is a synthetic pentapeptide belonging to the class of growth hormone secretagogues (GHS). It is studied in experimental research as a selective agonist of the growth hormone secretagogue receptor (GHSR), a receptor associated with the regulation of growth hormone signaling and endocrine function.
Laboratory investigations examine ipamorelin as a tool compound for studying growth hormone release mechanisms, metabolic signaling pathways, and endocrine regulatory systems. The peptide’s receptor selectivity allows researchers to explore growth hormone signaling without significantly activating several other hormone pathways commonly associated with earlier growth hormone secretagogues.
Across experimental models, ipamorelin has been associated with measurable changes in endpoints frequently monitored in endocrine research, including growth hormone secretion dynamics, insulin-like growth factor signaling, and metabolic regulatory pathways. These observations are interpreted mechanistically through receptor-mediated signaling processes rather than as outcomes or claims of applied use.
Ipamorelin Structure
Peptide Class: Growth hormone secretagogue peptide
Amino Acid Sequence: Aib-His-D-2-Nal-D-Phe-Lys-NH₂
Molecular Formula: C38H49N9O5
Molecular Weight: ~711.85 g/mol
CAS Number: 170851-70-4
Synonyms: ipamorelin acetate, GHS peptide analog
Ipamorelin is a synthetic pentapeptide analog designed to mimic the activity of endogenous growth hormone–releasing signaling molecules. Structural modifications incorporated into the peptide improve receptor affinity and stability, enabling researchers to examine controlled activation of the growth hormone secretagogue receptor.
In experimental systems, these structural features allow investigation of growth hormone signaling pathways and endocrine feedback mechanisms involved in metabolic regulation and physiological growth processes.
Ipamorelin Research
Ipamorelin is used in research examining growth hormone signaling pathways and endocrine regulatory systems. Experimental investigations frequently involve receptor activation assays designed to evaluate intracellular signaling following GHSR engagement.
Laboratory studies commonly investigate endpoints including:
- growth hormone secretion signaling
- insulin-like growth factor (IGF-1) pathway activity
- endocrine signaling regulation
- metabolic pathway modulation
- hormone-mediated feedback mechanisms
In vivo research models have also been used to explore how ipamorelin influences somatotropic axis signaling and metabolic regulatory networks.
Referenced Citations
[1] Smith RG, Van der Ploeg LH, Howard AD, et al.
Peptidomimetic regulation of growth hormone secretion.
https://pubmed.ncbi.nlm.nih.gov/7504789/[2] Bowers CY.
Growth hormone-releasing peptides and growth hormone secretagogues.
https://pubmed.ncbi.nlm.nih.gov/10720450/[3] Raun K, Hansen BS, Johansen NL, et al.
Ipamorelin, a novel growth hormone secretagogue.
https://pubmed.ncbi.nlm.nih.gov/10359863/[4] Ghigo E, Arvat E, Muccioli G, Camanni F.
Growth hormone-releasing peptides.
https://pubmed.ncbi.nlm.nih.gov/9497814/[5] PubChem.
Ipamorelin compound summary.
https://pubchem.ncbi.nlm.nih.gov/compound/Ipamorelin
Storage Instructions:
All of our products are manufactured using the Lyophilization (Freeze Drying) process, which ensures that our products remain 100% stable for shipping for up to 3-4 months.
Once the peptides are reconstituted (mixed with bacteriostatic water), they must be stored in the fridge to maintain stability. After reconstitution, the peptides will remain stable for up to 30 days.
Lyophilization is a unique dehydration process, also known as cryodesiccation, where the peptides are frozen and then subjected to low pressure. This causes the water in the peptide vial to sublimate directly from solid to gas, leaving behind a stable, crystalline white structure known as lyophilized peptide. The puffy white powder can be stored at room temperature until you’re ready to reconstitute it with bacteriostatic water.
Once peptides have been received, it is imperative that they are kept cold and away from light. If the peptides will be used immediately, or in the next several days, weeks or months, short-term refrigeration under 4C (39F) is generally acceptable. Lyophilized peptides are usually stable at room temperatures for several weeks or more, so if they will be utilized within weeks or months such storage is typically adequate.
However, for longer term storage (several months to years) it is more preferable to store peptides in a freezer at -80C (-112F). When storing peptides for months or even years, freezing is optimal in order to preserve the peptide’s stability.
For further information on proper storage techniques, click the link below:
Peptide Storage
