GHRP-2
A cleaner version of GHRP-6 with strong growth hormone release but less hunger and fewer hormonal side effects. GHRP-2 sits in the sweet spot between GHRP-6's potency and ipamorelin's selectivity.
GHRP-2 (pralmorelin) stimulates your pituitary to release growth hormone by activating the ghrelin receptor, but with a cleaner profile than GHRP-6. You still get strong GH release, but with less appetite stimulation and lower cortisol/prolactin elevation. It's the most popular GHRP for people who want potent GH release without the aggressive side effects.
Who's interested: People seeking growth hormone elevation for body composition, recovery, sleep, or anti-aging who want a balance between potency and tolerability.
Dive deeper into the researchPotential side effects
- Moderate appetite increase (less than GHRP-6)
- Mild water retention in the first few weeks
- Slight cortisol and prolactin elevation at standard doses
What does GHRP-2 do?
Like GHRP-6, GHRP-2 activates the ghrelin receptor on your pituitary gland to trigger growth hormone release. The key difference is selectivity: GHRP-2 produces comparable GH output with less hunger, less cortisol, and less prolactin elevation than GHRP-6.
In clinical settings, GHRP-2 (also known as pralmorelin) has been used as a diagnostic tool to assess GH deficiency — meaning there's human pharmacological data establishing its safety and efficacy for GH stimulation.
Who uses it?
- Body composition — GH-mediated fat loss and lean mass preservation
- Sleep quality — GH secretion during deep sleep improves recovery
- Recovery — faster healing from training or injury
- Anti-aging — restoring declining GH levels without exogenous GH
What to know before trying
- Best on empty stomach — inject at least 30 minutes before or 2 hours after eating
- Stacks well with GHRH — combining with CJC-1295 (no DAC) amplifies GH release synergistically
- Before-bed dosing popular — amplifies natural nocturnal GH pulse
- Moderate hunger — noticeable appetite increase but manageable compared to GHRP-6
- Used diagnostically — approved as a GH stimulation test agent in some countries (pralmorelin)
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Get early accessFrequently Asked Questions
Is GHRP-2 better than GHRP-6?
For most people, yes. GHRP-2 provides comparable GH release with less hunger, less cortisol elevation, and less prolactin increase. The only scenario where GHRP-6 might be preferred is if you're underweight and want the appetite stimulation.
GHRP-2 vs ipamorelin — which is better?
GHRP-2 gives stronger GH release but comes with moderate hunger and slight cortisol/prolactin effects. Ipamorelin is the cleanest option — no hunger, no cortisol, no prolactin — but produces less GH. Choose based on whether you prioritise potency (GHRP-2) or cleanliness (ipamorelin).
How should I dose GHRP-2?
Standard protocol is 100–300 mcg subcutaneously, 2–3 times daily on an empty stomach. Many users dose 100 mcg before bed to amplify the natural nocturnal GH pulse. For synergistic effect, combine with 100 mcg CJC-1295 (no DAC) at the same injection.
Is GHRP-2 available in India?
GHRP-2 is available from peptide vendors in India as a research chemical. It is not approved as a drug or supplement. As with all research peptides, verify quality through third-party HPLC testing.
How it works in your body
- GHS-R1a agonism — binds the ghrelin receptor on pituitary somatotrophs with high affinity
- Pulsatile release — triggers GH pulses that preserve natural feedback; no pituitary suppression
- Synergy with GHRH — when combined with a GHRH peptide, the GH response is multiplicative, not just additive
- Diagnostic use — pralmorelin (GHRP-2) is approved in Japan for GH stimulation testing
Pharmacological evidence
- Single 100 mcg dose increases GH 5–10x above baseline in healthy adults
- Repeated dosing over weeks maintains GH response without significant tachyphylaxis
- IGF-1 elevation of 30–50% sustained with consistent use
- Used clinically to differentiate GH deficiency from GH sufficiency
Side effects & safety
- Appetite increase — moderate; noticeable but manageable for most users
- Water retention — mild, typical of GH elevation
- Cortisol — slight, transient elevation; less than GHRP-6
- Prolactin — mild transient increase; clinically insignificant at standard doses
- Numbness/tingling — occasional, transient, related to GH effects
- Fasting glucose — GH can impair insulin sensitivity with chronic use
Who should avoid it: People with active cancer, uncontrolled diabetes, or pituitary tumors.
Which labs to monitor
- IGF-1 — primary outcome marker
- Fasting glucose & HbA1c — insulin sensitivity monitoring
- Prolactin — baseline and 8-week follow-up
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