--- title: "GHRP-6 | PepTracker Pro" description: "A growth hormone secretagogue that also stimulates appetite through ghrelin receptor activation." lang: en json-ld: | [ { "@context": "https://schema.org", "@type": "Organization", "name": "PepTracker Pro", "url": "https://peptrackerpro.com", "logo": "https://peptrackerpro.com/favicon.png", "description": "Evidence-based educational resource dedicated to improving peptide research literacy.", "contactPoint": { "@type": "ContactPoint", "email": "hello@peptrackerpro.com", "contactType": "customer support" }, "sameAs": [] }, { "@context": "https://schema.org", "@type": "MedicalWebPage", "name": "GHRP-6", "description": "A growth hormone secretagogue that also stimulates appetite through ghrelin receptor activation.", "url": "https://peptrackerpro.com/peptides/ghrp-6", "lastReviewed": "2026-05-27", "reviewedBy": { "@type": "Organization", "name": "PepTracker Pro Research Team", "url": "https://peptrackerpro.com" }, "isPartOf": { "@type": "WebSite", "name": "PepTracker Pro", "url": "https://peptrackerpro.com" } }, { "@context": "https://schema.org", "@type": "BreadcrumbList", "itemListElement": [ { "@type": "ListItem", "position": 1, "name": "Home", "item": "https://peptrackerpro.com" }, { "@type": "ListItem", "position": 2, "name": "Peptides", "item": "https://peptrackerpro.com/peptides" }, { "@type": "ListItem", "position": 3, "name": "GHRP-6", "item": "https://peptrackerpro.com/peptides/ghrp-6" } ] }, { "@context": "https://schema.org", "@type": "FAQPage", "mainEntity": [ { "@type": "Question", "name": "People comparing growth hormone secretagogues?", "acceptedAnswer": { "@type": "Answer", "text": "GHRP-6 is a research peptide studied in preclinical models. A growth hormone secretagogue that also stimulates appetite through ghrelin receptor activation." } }, { "@type": "Question", "name": "Those researching appetite-stimulating peptides?", "acceptedAnswer": { "@type": "Answer", "text": "GHRP-6 is a research peptide studied in preclinical models. A growth hormone secretagogue that also stimulates appetite through ghrelin receptor activation." } }, { "@type": "Question", "name": "Individuals exploring older GH-releasing peptides?", "acceptedAnswer": { "@type": "Answer", "text": "GHRP-6 is a research peptide studied in preclinical models. A growth hormone secretagogue that also stimulates appetite through ghrelin receptor activation." } } ] } ] --- [Skip to main content](#main) **Educational information only.** This site does not provide medical advice. [Read full disclaimer](/disclaimer) [PepTracker Pro](/) [Home](/)[Peptides](/peptides)[Compare](/compare)[Glossary](/glossary)[Blog](/blog)[Calculators](/calculators)[Start Here](/start) [Open the App](https://app.peptrackerpro.com) [Peptides](/peptides)/ GHRP-6 **Research-only content.** This page is for educational purposes and does not constitute medical advice. [Read full disclaimer →](/research-disclaimer) # GHRP-6 Medium Evidence A growth hormone secretagogue that also stimulates appetite through ghrelin receptor activation. Aliases Growth Hormone Releasing Peptide 6 +1 more Evidence Medium Evidence Last Updated 2026-05-27 Reading Time 2 min ## Table of Contents 1. [What It Is](#what-it-is) 2. [Why Researchers Study It](#why-researchers-study) 3. [Proposed Mechanisms](#proposed-mechanisms) 4. [Evidence Snapshot](#evidence-snapshot) 5. [Commonly Discussed Benefits](#benefits) 6. [Safety & Cautions](#safety) 7. [Comparisons](#comparisons) 8. [Calculator Tools](#calculator) 9. [Citations](#citations) ## What It Is GHRP-6 (Growth Hormone Releasing Peptide-6) is a synthetic hexapeptide that stimulates growth hormone secretion by binding to the ghrelin receptor (GHS-R1a) in the hypothalamus and pituitary gland. It is one of the earliest discovered GH secretagogues and remains widely referenced in growth hormone research. Unlike more selective peptides such as ipamorelin, GHRP-6 also stimulates cortisol, prolactin, and notably appetite — the latter mediated through its ghrelin-mimetic activity. Clinical studies have confirmed robust, dose-dependent GH release, with peak GH levels occurring approximately 15–30 minutes after subcutaneous administration. The strong appetite-stimulating effect, while undesirable for fat-loss applications, has been studied for potential therapeutic use in cachexia and age-related appetite decline. GHRP-6 remains on the FDA's Category 2 list as of May 2026 and is expected to stay restricted, meaning it cannot be legally compounded by 503A or 503B pharmacies in the United States. It is listed by WADA as a prohibited substance in competitive sports. GHRP-6 is not FDA-approved for any indication. Also known as: Growth Hormone Releasing Peptide 6, SKF-110679 ## Why Researchers Study It GHRP-6 was one of the first synthetic GH secretagogues identified and remains a reference compound for studying ghrelin receptor pharmacology. Its pronounced appetite-stimulating effect, mediated through the same ghrelin receptor pathway, makes it a useful tool for investigating the intersection of growth hormone release and hunger signaling. ## Proposed Mechanisms - Binds the growth hormone secretagogue receptor (GHS-R1a, the ghrelin receptor) to trigger pulsatile GH release - Stimulates appetite via hypothalamic ghrelin signaling pathways - May elevate cortisol and prolactin through non-selective receptor activation - Amplifies GH release synergistically when paired with GHRH analogs like CJC-1295 ## Evidence Snapshot Medium Evidence Low Medium High Study Type Model Outcome Link Human GH secretion studies in healthy adults Dose-dependent GH release with concurrent appetite stimulation [Source](https://pubmed.ncbi.nlm.nih.gov/) ## Commonly Discussed Benefits [Muscle Growth](/benefits/muscle-growth)[Fat Loss](/benefits/fat-loss)[Recovery](/benefits/recovery)[Appetite Regulation](/benefits/appetite-regulation) Researching GHRP-6 ? Track it, set reminders, and keep notes in the free app. [Track in App](https://app.peptrackerpro.com/?add=ghrp-6) ## Safety & Cautions - Significantly increases appetite, which may be undesirable - May elevate cortisol and prolactin levels - Less selective than newer GH secretagogues like ipamorelin - Not FDA-approved ## Comparisons See how GHRP-6 compares to related peptides: [GHRP-6 vs CJC-1295](/compare/ghrp-6-vs-cjc-1295) [GHRP-6 vs Ipamorelin](/compare/ghrp-6-vs-ipamorelin) [GHRP-6 vs Sermorelin](/compare/ghrp-6-vs-sermorelin) ## Calculator Tools Use our research tools to explore dosing and reconstitution data: [Reconstitution Calculator](/calculators) ## Citations 1. \[1\] Bowers CY. — Growth hormone-releasing peptide (GHRP). Cell Mol Life Sci. 1998 [PubMed](https://pubmed.ncbi.nlm.nih.gov/) ### Keep researching in the app - Log GHRP-6 to your private tracker - Set a dosing reminder - Compare it side-by-side with your stack [Open PepTracker Pro Free](https://app.peptrackerpro.com/?add=ghrp-6) [Browse more peptides](/peptides) ## Related Peptides ### CJC-1295 Medium Evidence A growth hormone releasing hormone analog studied for stimulating growth hormone secretion. [Muscle Growth](/benefits/muscle-growth)[Fat Loss](/benefits/fat-loss)[Recovery](/benefits/recovery)[Sleep](/benefits/sleep)+1 more [View Details](/peptides/cjc-1295) [\+ Compare](/compare?select=cjc-1295)[](https://app.peptrackerpro.com/?add=cjc-1295) ### Ipamorelin Medium Evidence A selective growth hormone secretagogue studied for targeted GH release with fewer side effects than other GH peptides. [Muscle Growth](/benefits/muscle-growth)[Fat Loss](/benefits/fat-loss)[Recovery](/benefits/recovery)[Sleep](/benefits/sleep)+1 more [View Details](/peptides/ipamorelin) [\+ Compare](/compare?select=ipamorelin)[](https://app.peptrackerpro.com/?add=ipamorelin) ### Sermorelin Medium Evidence A GHRH analog previously FDA-approved for growth hormone deficiency diagnosis and treatment. [Muscle Growth](/benefits/muscle-growth)[Fat Loss](/benefits/fat-loss)[Sleep](/benefits/sleep)[Recovery](/benefits/recovery)+1 more [View Details](/peptides/sermorelin) [\+ Compare](/compare?select=sermorelin)[](https://app.peptrackerpro.com/?add=sermorelin) [PepTracker Pro](/) Educational peptide information and research tracking tools. 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