Growth Hormone Research Hub
GHRPs, GHRHs, Secretagogues & GH Axis Research
A complete research library on growth hormone peptides — covering GHRPs (GHRP-2, GHRP-6, ipamorelin), GHRH analogues (CJC-1295, sermorelin, tesamorelin), oral secretagogues (MK-677), and the full GH/IGF-1 axis.
Peptide Classes
GHRPs, GHRHs, Secretagogues
Primary Axis
GH / IGF-1 Axis
Key Receptors
GHS-R1a, GHRH-R
Research Focus
Metabolic & Body Composition
All Growth Hormone Articles
40 articlesIpamorelin: A Selective Growth Hormone Secretagogue for Laboratory Research
Ipamorelin is a selective growth hormone secretagogue and ghrelin receptor agonist, currently under investigation in laboratory research for its potential role in growth hormone release and metabolic regulation without the side effects associated with non-selective secretagogues.
Tesamorelin: A Stabilized GHRH Analogue in Growth Hormone and Metabolic Research
Tesamorelin is a synthetic analogue of growth hormone-releasing hormone (GHRH) stabilized by the addition of a trans-3-hexenoic acid group. Research has focused on its ability to stimulate endogenous growth hormone secretion and reduce visceral adipose tissue, particularly in the context of HIV-associated lipodystrophy.
CJC-1295 (No DAC): GHRH Analogue for Growth Hormone Research
CJC-1295 (No DAC) is a synthetic GHRH analogue with a half-life of approximately 30 minutes. It stimulates pulsatile GH secretion from the pituitary and is commonly paired with GHRPs such as ipamorelin in research protocols. Pure Pharm Peptides carries the no-DAC formulation.
Sermorelin: The GHRH(1-29) Fragment in Growth Hormone Secretagogue Research
Sermorelin is a synthetic 29-amino acid peptide corresponding to the biologically active N-terminal fragment of endogenous growth hormone-releasing hormone (GHRH). It stimulates pituitary GH secretion through the same receptor as native GHRH and has been studied extensively as a diagnostic tool and research compound for GH axis investigation.
GHRP-6: A Ghrelin Mimetic and Growth Hormone Secretagogue in Preclinical Research
GHRP-6 (Growth Hormone Releasing Peptide-6) is a synthetic hexapeptide that acts as a ghrelin mimetic, stimulating GH secretion through the GHS-R1a receptor. It is one of the original synthetic growth hormone secretagogues and has been widely used in research to investigate the ghrelin axis and its role in GH regulation, appetite, and metabolic function.
GHRP-2: A Potent Synthetic Growth Hormone Secretagogue in GHS-R1a Research
GHRP-2 is a synthetic hexapeptide growth hormone secretagogue that activates the GHS-R1a receptor with higher potency than GHRP-6. It produces robust, dose-dependent GH release with comparatively less appetite stimulation, making it a widely used research tool for GH axis investigation.
CJC-1295/Ipamorelin: Synergistic GHRH and GHRP Combination in Growth Hormone Research
The combination of CJC-1295 and ipamorelin represents a dual-pathway approach to GH axis stimulation, pairing a long-acting GHRH analogue with a selective GHRP. Research has demonstrated that this combination produces synergistic GH release substantially greater than either peptide alone, making it a widely studied protocol in growth hormone research.
CJC-1295 and Ipamorelin in Research: Dosing Parameters and Study Designs
A review of the dosing parameters, administration protocols, and study designs used in published CJC-1295 and Ipamorelin preclinical and clinical research.
CJC-1295 vs. Sermorelin: A Comparison of GHRH Analogues in Research
A comparison of CJC-1295 and Sermorelin as growth hormone-releasing hormone analogues, examining their structural differences, pharmacokinetics, and published research applications.
Ipamorelin vs. GHRP-6: Comparing Growth Hormone Secretagogues in Research
A research-based comparison of Ipamorelin and GHRP-6 as growth hormone secretagogue receptor agonists, focusing on their selectivity profiles, side effect differences in animal models, and published research applications.
CJC-1295 and Ipamorelin: The Research Rationale for GHRH + GHSR Agonist Combinations
An examination of the scientific rationale for combining a GHRH analogue (CJC-1295) with a GHSR agonist (Ipamorelin) in growth hormone research, based on the known physiology of GH secretion.
Beginner's Guide to Growth Hormone Peptides: GHRH, GHRP, and Secretagogues in Research
An introductory overview of the growth hormone peptide axis for researchers new to the field, covering the distinction between GHRH analogues, GHRPs, and synthetic secretagogues, with key published findings for each class.
Somatostatin Inhibition: How GHRPs Amplify GH Pulses
A review of somatostatin's role as the primary inhibitor of GH secretion and how GHRP compounds reduce somatostatin tone to amplify GH pulses.
The GHRH/GHRP Axis: How Growth Hormone Secretagogues Work
A detailed mechanistic review of how GHRH analogues and GHRPs stimulate GH release through complementary receptor pathways and synergistic mechanisms.
Insulin-Like Growth Factor 1 (IGF-1): Downstream Effects of GH Peptides
A review of IGF-1 biology, its role as the primary mediator of GH peptide effects, and the published research on IGF-1 signaling in muscle, bone, and metabolic tissue.
Ipamorelin vs GHRP-6: Selectivity, Side Effects, and GH Output
A detailed comparison of Ipamorelin and GHRP-6 as GH secretagogues, examining receptor selectivity, cortisol and prolactin effects, appetite stimulation, and published GH output data.
AOD-9604: The C-Terminal Fragment of HGH and Fat Metabolism Research
A review of AOD-9604's origin as a fragment of human growth hormone, its documented lipolytic effects, and the published clinical evidence from Metabolic Pharmaceuticals' trials.
Hexarelin vs Ipamorelin: GH Secretagogue Comparison
A comparison of Hexarelin and Ipamorelin as GH secretagogues, examining potency differences, cardiac effects unique to Hexarelin, and desensitization profiles.
GH Axis Research: CJC-1295 + Ipamorelin + MK-677 Combination Study
A mechanistic analysis of the CJC-1295, Ipamorelin, and MK-677 combination for GH axis research, examining how the three compounds target complementary aspects of GH secretion.
Sermorelin vs CJC-1295: Half-Life and Efficacy Comparison
A comparison of Sermorelin and CJC-1295 as GHRH analogues, examining the pharmacokinetic differences that make CJC-1295 more suitable for sustained GH axis stimulation research.
GHRP-2 vs GHRP-6: Hunger Side Effects and GH Output Compared
A comparison of GHRP-2 and GHRP-6 as GH secretagogues, examining their relative GH output, hunger-stimulating effects, and cortisol elevation profiles.
MK-677 (Ibutamoren): Oral GH Secretagogue Research Overview
A comprehensive review of MK-677 (Ibutamoren) as an orally active GHS-R1a agonist, covering its pharmacokinetics, published clinical trial data, and research applications.
The HPA Axis and Peptide Modulation: Stress Response Research
A review of the hypothalamic-pituitary-adrenal (HPA) axis and how research peptides including GHRPs and BPC-157 interact with stress response pathways.
PT-141 (Bremelanotide): Melanocortin Receptor Research
A review of PT-141 (Bremelanotide) as a melanocortin receptor agonist, its FDA approval for hypoactive sexual desire disorder, and the published mechanistic research.
Hexarelin vs. GHRP-6: Comparing Two Growth Hormone Secretagogues in Research
A side-by-side comparison of Hexarelin and GHRP-6, two synthetic growth hormone-releasing peptides, examining their structural differences, receptor pharmacology, GH-releasing potency, and distinct research applications in preclinical models.
Tesamorelin vs. Semaglutide: A Research-Focused Comparison
A detailed comparison of Tesamorelin (a GHRH analogue) and Semaglutide (a GLP-1 receptor agonist) across mechanism of action, metabolic effects, body composition findings, and research applications in experimental models.
CJC-1295 and Ipamorelin Combination: Research on GHRH and GHRP Signaling
A research-focused review of the CJC-1295 and Ipamorelin combination, examining how simultaneous activation of GHRH receptors and ghrelin receptors produces synergistic growth hormone secretion in experimental models.
Ipamorelin + CJC-1295 Combination: Research Overview
A detailed research overview of the Ipamorelin and CJC-1295 combination, examining their complementary mechanisms, synergistic GH pulse amplification, and what the literature says about combined administration protocols.
Sermorelin Research Overview: GHRH Analogue for GH Secretion Studies
A comprehensive research overview of sermorelin, a synthetic GHRH analogue used in laboratory studies of growth hormone secretion, pituitary function, and somatopause.
Hexarelin vs. GHRP-6: Research Comparison of GH Secretagogues
A head-to-head research comparison of hexarelin and GHRP-6, two first-generation growth hormone-releasing peptides, examining potency, selectivity, cardiovascular effects, and research applications.
MK-677 (Ibutamoren) Research Overview: Oral GH Secretagogue
A comprehensive research overview of MK-677 (ibutamoren), a non-peptide oral ghrelin mimetic that stimulates GH and IGF-1 secretion, with a review of clinical trials and research applications.
Tesamorelin Research Overview: FDA-Approved GHRH Analogue for Visceral Fat
A research overview of tesamorelin, an FDA-approved GHRH analogue studied for visceral adiposity reduction in HIV-associated lipodystrophy, with a review of clinical trials, mechanisms, and research applications.
Sermorelin vs. Ipamorelin vs. CJC-1295: A Research Comparison
A head-to-head research comparison of the three most widely studied GHRH/GHRP peptides — Sermorelin, Ipamorelin, and CJC-1295 — examining mechanism, potency, half-life, GH pulse characteristics, and research applications.
GHRP-2 vs. GHRP-6 vs. Hexarelin: Comparing the Three Major GHRPs
A head-to-head research comparison of the three major growth hormone-releasing peptides — GHRP-2, GHRP-6, and Hexarelin — examining receptor pharmacology, GH pulse magnitude, ghrelin effects, and research applications.
IGF-1 LR3: Insulin-Like Growth Factor Research Overview
A comprehensive overview of IGF-1 LR3, its extended half-life compared to native IGF-1, mechanisms of action in muscle hypertrophy and tissue repair research, and key research findings.
Growth Hormone Secretagogues: Complete Research Comparison
A comprehensive comparison of all major growth hormone secretagogues including GHRH analogs, GHRPs, and ghrelin mimetics, covering mechanisms, potency, pulsatility, and research applications.
Tesamorelin: GHRH Analog Mechanisms, Visceral Fat Reduction, and GH Axis Research Protocols
An in-depth review of Tesamorelin's mechanism as a stabilized GHRH analog, its preclinical and clinical research on visceral adiposity reduction, IGF-1 elevation, and comparison with other GHRH analogs including Sermorelin and CJC-1295.
Where to Buy CJC-1295 / Ipamorelin Research Grade: What to Look For in 2026
A comprehensive guide for researchers sourcing CJC-1295/Ipamorelin combination peptides, covering purity standards, COA verification, and what separates reliable suppliers from unreliable ones.
Where to Buy Sermorelin Research Grade: Supplier Quality Guide 2026
A researcher's guide to sourcing sermorelin peptide, covering purity verification, COA standards, and how to evaluate supplier credibility for laboratory use.
Where to Buy Ipamorelin Research Grade: A Quality Verification Guide
Everything researchers need to know about sourcing high-purity ipamorelin, including COA verification, purity standards, and supplier evaluation criteria.
FOR RESEARCH PURPOSES ONLY — All content in this hub is intended strictly for scientific and educational reference. These compounds are not approved for human or animal consumption. Pure Pharm Peptides sells exclusively to qualified researchers.