GHRP-2 vs GHRP-6
Independent, side-by-side comparison of GHRP-2 and GHRP-6: mechanism, half-life, dose range, safety profile, and live vendor pricing. Updated continuously as new research and listings land.
Live price snapshot
GHRP-2
GHRP-6
GHRP-2
GHRP-2 (growth hormone-releasing peptide-2), also known as pralmorelin and KP-102, is a synthetic hexapeptide growth hormone secretagogue that was among the first GHRPs developed in the seminal research of Cyril Bowers…
Live lowest price: $29.00 across 2 vendors
Full GHRP-2 profileGHRP-6
GHRP-6 (growth hormone-releasing peptide-6) is a synthetic hexapeptide with the sequence His-D-Trp-Ala-Trp-D-Phe-Lys-NH2 that binds the ghrelin receptor (GHS-R1a) to stimulate endogenous growth hormone release. It was…
Live lowest price: $29.00 across 2 vendors
Full GHRP-6 profileSide-by-side comparison
| Attribute | GHRP-2 | GHRP-6 |
|---|---|---|
| Category | Growth Hormone / IGF-1 Axis | Growth Hormone / IGF-1 Axis |
| Research Stage | Phase II | Phase II |
| Mechanism of Action | GHS-R1a Receptor Agonism GHRP-2 binds the growth hormone secretagogue receptor type 1a (GHS-R1a), the endogenous target of ghrelin, with nanomolar affinity. GHS-R1a is expressed on: - Anterior pituitary somatotrophs — direct GH release - Hypothalamic arcuate… | GHS-R1a Receptor Agonism GHRP-6 binds the growth hormone secretagogue receptor type 1a (GHS-R1a) — the same receptor targeted by endogenous ghrelin, GHRP-2, hexarelin, ipamorelin, and oral MK-677. The sequence His-D-Trp-Ala-Trp-D-Phe-Lys-NH2 is distinct enough… |
| Half-Life | ~1 hour | ~20–30 minutes |
| Typical Dose Range | 100–300 mcg per injection | 100–300 mcg per injection |
| Dosing Frequency | 1–3 times daily; bedtime injection most important | 1–3 times daily |
| Administration | Subcutaneous, Intramuscular, Intranasal | Subcutaneous, Intramuscular |
| Side Effects | Common (dose-dependent) - Increased appetite / hunger — GHRP-2 is a ghrelin-receptor agonist, and ghrelin is the body's primary hunger signal. Expect measurable appetite stimulation starting ~30 minutes post-injection and peaking at 1-2 hours. Beneficial in… | Very Common (expected in most users) - Strong appetite stimulation / hunger — The signature effect of GHRP-6, noticeable within 30-60 minutes of injection. For users in caloric surplus, this is often welcome. For users in deficit, this is frequently the… |
| Molecular Weight | 817.9 Da | 873 Da |
| Common Vial Sizes | 5mg, 10mg | 5mg, 10mg |
Price History
2 data points- VANDL Labs
- Ion Peptide
Price History
2 data points- VANDL Labs
- Ion Peptide
GHRP-2 — potential benefits
- High GH output
- Muscle building
- Fat loss
- Recovery
- Appetite stimulation
- Anti-aging
GHRP-6 — potential benefits
- GH stimulation
- Appetite increase
- Muscle mass
- Cardiac protection
- Recovery
- Body composition
Frequently asked
What's the difference between GHRP-2 and GHRP-6?
GHRP-2 is a growth hormone / igf-1 axis that ghs-r1a receptor agonism ghrp-2 binds the growth hormone secretagogue receptor type 1a (ghs-r1a), the endogenous target of ghrelin, with nanomolar affinity. ghs-r1a is expressed…. GHRP-6 is a growth hormone / igf-1 axis that ghs-r1a receptor agonism ghrp-6 binds the growth hormone secretagogue receptor type 1a (ghs-r1a) — the same receptor targeted by endogenous ghrelin, ghrp-2, hexarelin, ipamorelin,…. The two differ in mechanism, half-life (~1 hour vs ~20–30 minutes), and typical dose range.
Which has the longer half-life, GHRP-2 or GHRP-6?
GHRP-2 has a half-life of ~1 hour. GHRP-6 has a half-life of ~20–30 minutes. Longer half-lives generally mean less frequent dosing but slower on/off kinetics.
Which is cheaper, GHRP-2 or GHRP-6?
Current lowest live price on BodyHackGuide: GHRP-2 from $29.00, GHRP-6 from $29.00. Prices are pulled from the vendor listings tracked on BHG and change frequently — see the compare tables on each compound page for the current set of offers.
Can you stack GHRP-2 and GHRP-6?
Stacking depends on mechanism overlap, safety profile, and goals. GHRP-2 and GHRP-6 should only be stacked after reviewing each compound's individual protocol page, side effect profile, and any published interaction data. Use the BodyHackGuide stack builder for a structured review before combining research compounds.
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Research use only. BodyHackGuide is an independent research reference. The compounds discussed on this page are not approved by the FDA for human consumption and are sold strictly for laboratory research. Prices shown are pulled from vendor listings tracked on BHG and are subject to change. We earn an affiliate commission on some outbound clicks — this never affects the data or pricing shown. See editorial standards and affiliate disclosure.
