GHRP-6
Monograph · CSix-amino acid ghrelin agonist. Notable for pronounced hunger stimulation in addition to GH release.
How it clearsHalf cleared in ~30min. Most (~96%) gone by ~2.5h.
Older GHRP class. Stronger appetite signal makes it useful for cachexia models but problematic for body-composition users. Largely superseded by ipamorelin in modern stacks.
Emerging hormonal signal with real mechanistic basis — but this is where subjective monitoring most consistently misleads. Hormonal shifts at this tier are often lab-detectable before they become subjectively felt. Without bloodwork at 6–8 weeks, you are tracking the wrong signal.
Hunger stimulation can backfire for fat-loss goals. Modern alternatives (ipamorelin) are usually preferred.
His-D-Trp-Ala-Trp-D-Phe-Lys-NH₂ (6 aa with D-stereoisomers).
Upload a lab file (LabCorp / Quest) or DNA file (23andMe / AncestryDNA). Stack will show your specific markers alongside the literature-reported response windows.
Upload in /historyPer-claim grading. Each claim is graded independently — same peptide, different claims can carry different grades.
External links to PubMed searches, ClinicalTrials.gov, and FDA materials. We do not host papers — we point at canonical sources.
Expected reclassification — PCAC review Feb 2027
FDA's Pharmacy Compounding Advisory Committee scheduled to review the second cohort of peptides removed from Category 2 in April 2026. Panel votes whether to add each to the official 503A bulks list.
Pre-filled with this compound's published dose range: 100-200 µg · 2-3x daily, subcutaneous
Calculator is a discussion tool. Verify reconstitution + dosing with a qualified provider. Stack is not a prescription source. Use sterile technique and inspect every vial.
How much a first cycle actually costs across the channels people use. Pick the protocol length you're considering — Stack multiplies the monthly band by cycle weeks. Same caveats apply: ranges are facts, quality varies, this is not legal advice.
Numbers reflect publicly-advertised price ranges, not vendor quotes. Insurance, prescription costs, and shipping aren't included. Channels marked unavailable are filtered out.
See pharmacies for this compound →Approximate monthly cost across the channels users actually consider — brand FDA-approved retail, US 503A compounding, Mexican pharmacies, MX farmacias magistrales, and the research-grey market. Stack lists ranges, not vendor names. Quality varies wildly across channels — see each band's note.
Dosing assumption: 100-300 µg three times daily subcutaneous
Research-grey only. Older-generation GHRP; ghrelin receptor activity adds appetite stimulation that some users want and others avoid. On the Feb 2027 PCAC docket.
As of 2026-04No field reports yet
Field reports are added as users share their real-world protocols.
Next visit & citations
Running this compound? Log it in /history, then open Dr Passport before your visit. Methodology explains grades; the research dashboard sorts the full catalog with citations.