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GHRP-6 with Sermorelin

Mechanism-tag overlap and published literature for GHRP-6 and Sermorelin, pulled verbatim from each Kalios compound profile. Kalios is a literature reference, not a recommendation.

Mechanism overlap

Mechanism tags are verbatim labels on each compound's profile. Generic tags ("peptide", "small-molecule", "research-chemical") are excluded from this overlap view. Tags are descriptive — not an inference about combined effect.

GHRP-6 SERMORELIN 2 UNIQUE TAGS 1 UNIQUE TAGS 0 SHARED
GHRP-6 unique ghrelin-receptor-agonistgrowth-hormone-secretagogue
Shared none
Sermorelin unique ghrh-analog-growth-hormone-secretagogue

Co-administration notes from the literature

Verbatim summary text pulled from each compound's profile data. Researchers studying GHRP-6 and Sermorelin have published these mechanism-level observations. Not a co-administration recommendation.

Evidence level: mechanistic only

The 1-29 amino-acid fragment of GHRH. Cleaner than CJC-1295 in some practitioner protocols, with shorter half-life. Combined with GHRP-6 for the same synergistic GH-release rationale.

Quick facts

GHRP-6

RouteSubQ / IV / IM / Intranasal
Half-life~15–60 min
FDA statusInvestigational (Category 2 bulk)
WADABanned (S2)
Full GHRP-6 profile →

Sermorelin

RouteSubQ (nightly) / IV (diagnostic)
Half-life~10–12 min (plasma)
FDA statusApproved 1997; discontinued 2008 (commercial)
WADABanned (S2)
Full Sermorelin profile →

Literature table

Classified references from each compound profile. Click a column header to sort. Click a PMID to open PubMed. Findings are quoted verbatim from each profile's literature_summary; nothing here is added or interpreted.

Year Compound Source Finding
2013GHRP-6Cabrales A, Gil J, Fernández E, Valenzuela C, Hernández F, García I, Hernández A, Besada V, Reyes O, Padrón G, Berlanga J, Guillén G, González LJ. Pharmacokinetic study of Growth Hormone-Releasing Peptide 6 (GHRP-6) in nine male healthy volunteers. Eur J Pharm Sci. 2013;48(1-2):… PMID 23159700human study
2001GHRP-6Hataya Y, Akamizu T, Takaya K, et al. A low dose of ghrelin stimulates growth hormone (GH) release synergistically with GH-releasing hormone in humans. J Clin Endocrinol Metab. 2001;86(9):4552. PMID: 11549709. PMID 11549709human study
2001GHRP-6Arvat E, Maccario M, Di Vito L, et al. Endocrine activities of ghrelin, a natural growth hormone secretagogue (GHS), in humans: comparison and interactions with hexarelin, a nonnatural peptidyl GHS, and GH-releasing hormone. J Clin Endocrinol Metab. 2001;86(3):1169-1174. PMID: 1… PMID 11238504human study
1998GHRP-6Pandya N, DeMott-Friberg R, Bowers CY, Barkan AL, Jaffe CA. Growth hormone (GH)-releasing peptide-6 requires endogenous hypothalamic GH-releasing hormone for maximal GH stimulation. J Clin Endocrinol Metab. 1998;83(4):1186-1189. PMID: 9543138. (GHRH-GHRP synergy in humans.) PMID 9543138human study
2013GHRP-6Cabrales A, Berlanga J, et al. Cardiotropic effect of GHRP-6: in vivo characterization by echocardiography. Biotecnología Aplicada. 2013;30(4):285-289. (Inotropic effect characterization.)preclinical, in vivo
2005GHRP-6Depoortere I, De Winter B, Thijs T, De Man J, Pelckmans P, Peeters T. Comparison of the gastroprokinetic effects of ghrelin, GHRP-6 and motilin in rats in vivo and in vitro. Eur J Pharmacol. 2005;515(1-3):160-168. PMID: 15890335. (Gastric prokinetic mechanism.) PMID 15890335preclinical, in vivo
2005GHRP-6Granado M, Priego T, Martín AI, Villanúa MA, López-Calderón A. Anti-inflammatory effect of the ghrelin agonist growth hormone-releasing peptide-2 (GHRP-2) in arthritic rats. Am J Physiol Endocrinol Metab. 2005;288(3):E486-492. PMID: 15507534. (GHRP family anti-inflammatory mecha… PMID 15507534preclinical, in vivo
1984GHRP-6Bowers CY, Momany FA, Reynolds GA, Hong A. On the in vitro and in vivo activity of a new synthetic hexapeptide that acts on the pituitary to specifically release growth hormone. Endocrinology. 1984;114(5):1537-1545. PMID: 6142782. (Foundational GHRP-6 discovery paper.) PMID 6142782preclinical, in vivo
2002GHRP-6Bodart V, Febbraio M, Demers A, McNicoll N, Pohankova P, Perreault A, Sejlitz T, Escher E, Silverstein RL, Lamontagne D, Ong H. CD36 mediates the cardiovascular action of growth hormone-releasing peptides in the heart. Circ Res. 2002;90(8):844-849. PMID: 11988484. (CD36 cardiopr… PMID 11988484mechanism / discovery
2001GHRP-6Bowers CY. Unnatural growth hormone-releasing peptide begets natural ghrelin. J Clin Endocrinol Metab. 2001;86(4):1464-9. PMID: 11297568. (Bowers' personal review of the discovery arc from synthetic to natural ligand.) PMID 11297568mechanism / discovery
1999GHRP-6Kojima M, Hosoda H, Date Y, Nakazato M, Matsuo H, Kangawa K. Ghrelin is a growth-hormone-releasing acylated peptide from stomach. Nature. 1999;402(6762):656-660. PMID: 10604470. (Discovery of the natural endogenous ligand of GHS-R1a.) PMID 10604470mechanism / discovery
1996GHRP-6Howard AD, Feighner SD, Cully DF, Arena JP, Liberator PA, Rosenblum CI, et al. A receptor in pituitary and hypothalamus that functions in growth hormone release. Science. 1996;273(5277):974-977. PMID: 8688086. (Cloning of GHS-R1a using GHRP-6 as the radioligand.) PMID 8688086mechanism / discovery
2012SermorelinBaker LD, Barsness SM, Borson S, Merriam GR, Friedman SD, Craft S, Vitiello MV. Effects of growth hormone-releasing hormone on cognitive function in adults with mild cognitive impairment and healthy older adults: results of a controlled trial. Arch Neurol. 2012;69(11):1420-1429.… PMID 22869065human study
1999SermorelinPrakash A, Goa KL. Sermorelin: a review of its use in the diagnosis and treatment of children with idiopathic growth hormone deficiency. BioDrugs. 1999;12(2):139-157. PMID: 18031173. PMID 18031173human study
1996SermorelinGhigo E, Aimaretti G, Gianotti L, Bellone J, Arvat E, Camanni F. New approach to the diagnosis of growth hormone deficiency in adults. Eur J Endocrinol. 1996;134(3):352-356. PMID: 8616536. PMID 8616536human study
2020SermorelinIshida J, Saitoh M, Ebner N, Springer J, Anker SD, von Haehling S. Growth hormone secretagogues: history, mechanism of action, and clinical development. JCSM Rapid Commun. 2020;3(1):25-37.mechanism / discovery
2025SermorelinWADA. 2025 Prohibited List. Section S2 — Peptide hormones, growth factors, related substances and mimetics. World Anti-Doping Agency.regulatory / registry
2006SermorelinWalker RF. Sermorelin: A better approach to management of adult-onset growth hormone insufficiency? Clin Interv Aging. 2006;1(4):307-308. PMID: 18046908. PMC2699646. PMID 18046908research article
2003SermorelinMerriam GR, Schwartz RS, Vitiello MV. Growth hormone-releasing hormone and growth hormone secretagogues in normal aging. Endocrine. 2003;22(1):41-48. PMID: 14662999. PMID 14662999research article
1997SermorelinKhorram O, Laughlin GA, Yen SS. Endocrine and metabolic effects of long-term administration of [Nle27]growth hormone-releasing hormone-(1-29)-NH2 in older men and women. J Clin Endocrinol Metab. 1997;82(5):1472-1479. PMID: 9141535. PMID 9141535research article
1996SermorelinThorner M, Rochiccioli P, Colle M, et al. Once daily subcutaneous growth hormone-releasing hormone therapy accelerates growth in growth hormone-deficient children during the first year of therapy. Geref International Study Group. J Clin Endocrinol Metab. 1996;81(3):1189-1196. PM… PMID 8772599research article
1992SermorelinCorpas E, Harman SM, Piñeyro MA, Roberson R, Blackman MR. Growth hormone (GH)-releasing hormone-(1-29) twice daily reverses the decreased GH and insulin-like growth factor-I levels in old men. J Clin Endocrinol Metab. 1992;75(2):530-535. PMID: 1379256. PMID 1379256research article
1992SermorelinDuck SC, Schwarz HP, Costin G, et al. Subcutaneous growth hormone-releasing hormone therapy in growth hormone-deficient children: first year of therapy. J Clin Endocrinol Metab. 1992;75(4):1115-1120. PMID: 1400880. PMID 1400880research article
1985SermorelinVance ML, Kaiser DL, Evans WS, et al. Pulsatile growth hormone secretion in normal man during a continuous 24-hour infusion of human growth hormone releasing factor. Evidence for intermittent somatostatin secretion. J Clin Invest. 1985;75(5):1584-1590. PMID: 2860118. PMID 2860118research article

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Frequently asked

Have GHRP-6 and Sermorelin been studied together?

Researchers have published mechanistic-level co-administration discussion of GHRP-6 and Sermorelin. No human co-administration trials are catalogued in the Kalios profiles. The pair page lists each compound's classified literature; full citations sit on each individual profile.

What mechanisms do GHRP-6 and Sermorelin share?

GHRP-6 and Sermorelin do not share a specific mechanism tag on their Kalios profiles. They appear on the same pair page because at least one profile lists the other in its co-administration data.

What is the FDA status of GHRP-6 and Sermorelin?

GHRP-6: Investigational (Category 2 bulk). Sermorelin: Approved 1997; discontinued 2008 (commercial). FDA-status text is pulled verbatim from each compound profile. See /fda-pcac-2026.html for the broader FDA Pharmacy Compounding Advisory Committee context.

Where can I find the full research on GHRP-6 and Sermorelin?

Full citation lists, dosing tables from the literature, reconstitution data, and the FDA / WADA status are on the individual compound profiles: the GHRP-6 profile and the Sermorelin profile. The Kalios Stack Research Tool hub lists every compound covered.

Last updated: April 2026