Research notes
Growth-Hormone-Axis Research Peptides: GHRH Analogs and Secretagogues
An overview of research peptides studied on the growth-hormone/somatotropic axis — GHRH analogs, ghrelin-receptor secretagogues, and recombinant HGH as a reference protein.
Several research peptides are studied for their interactions with the somatotropic axis — the growth-hormone signalling system. They act at different points and are often examined in relation to one another. This overview maps the group factually. All are supplied strictly for laboratory research use only and are not for human or veterinary use.
GHRH analogs
CJC-1295 is a synthetic analogue of growth-hormone-releasing hormone (GHRH), studied for its interaction with GHRH receptors and the somatotropic axis; its DAC form extends circulating half-life in research models. Full profile: CJC-1295 research overview.
Ghrelin-receptor secretagogues
Ipamorelin is a selective growth-hormone secretagogue and ghrelin-receptor (GHS-R) agonist, studied on a complementary arm of the axis. It is supplied as a research blend with CJC-1295 — see CJC-1295 and Ipamorelin and the blend overview.
Recombinant HGH as a reference protein
Human growth hormone (HGH, somatotropin) is a 191-amino-acid polypeptide hormone and a standard reference protein in endocrinology research, studied for its role in the growth-hormone / IGF-1 axis. Full profile: HGH research overview.
Why they are studied together
Each acts at a different node of one axis — the GHRH receptor, the ghrelin receptor, or the hormone itself — so research examines them in relation to one another. All sit within repair and metabolic peptides.
Verifying identity and purity
Each batch carries a Certificate of Analysis with HPLC purity data. See analytical testing and certificates of analysis.
Research use
This overview is for laboratory research contexts only. It is not medical advice, and none of the compounds referenced is for human or veterinary use.
Selected research literature
- Raun K, et al. (1998). Ipamorelin, the first selective growth hormone secretagogue. Eur J Endocrinol. PMID 9849822
- Teichman SL, et al. (2005). Prolonged stimulation of growth hormone (GH) and insulin-like growth factor I secretion by CJC-1295, a long-acting analog of GH-releasing hormone, in healthy adults. J Clin Endocrinol Metab. PMID 16352683
- Baron J, et al. (2015). Short and tall stature: a new paradigm emerges. Nat Rev Endocrinol. PMID 26437621
These links point to published studies and do not constitute a health claim about any product.
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Endogenous Peptides and Their Synthetic Analogs in Research
How many research peptides derive from naturally occurring molecules — mapping synthetic analogs and fragments like Semax, Selank, TB-500, and CJC-1295 to their parents.
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Melanocortin-System Research Peptides: KPV in Context
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Buyer guidance
Research Accessories: Syringes and Reconstitution Supplies for the Lab
An overview of the research accessories used alongside lyophilised peptides — reconstitution syringes, measured syringes, and swabs — and how they fit a lab workflow.