Home / Catalogue/ Growth recovery/ GHRP-2

Growth recoveryIn StockSubQ injection

GHRP-2

Hexapeptide · GHS-R agonist · 6 amino acids

Half-life

~1-2h

After administration

Delivery Method

SubQ injection

Route of administration

Storage (Lyophilised)

12-24 months

2–8°C

Storage (Reconstituted)

4–6 weeks

Refrigerate at 2-8C

Known For

Growth hormone releasing peptide. Stronger GH release than Ipamorelin but increases cortisol, prolactin, and hunger significantly. The hunger effect can be useful for underweight individuals.

Mechanism of Action

Potent GH secretagogue (ghrelin mimetic). Stimulates GH release BUT also raises cortisol, prolactin, and appetite (less selective than Ipamorelin).

Body vs. External Supply

🟢 Secretagogue (stimulates natural)

Brand / Trade Names

Pralmorelin (INN name) No commercial pharmaceutical brand Research peptide

Typical Research Dosage

100-300mcg per injection, 2-3x daily fasted.

Vial Duration Guide

5mg vial at 300mcg/day = ~17 days.

Recommended Vial Size

★ 5mg vials At 300mcg/day, 5mg = ~17 days ✓. 10mg = 33 days ✓. 15mg = 50 days ⚠️ exceeds shelf life. Stick with 5 or 10mg.

Time to Effects

EARLY: 1-2 weeks FULL: 8-12 weeks Week 1: Intense hunger spikes within 20 min of injection (this is the ghrelin effect). Improved sleep. Week 2-4: Recovery improvements. GH-related benefits starting. Week 8-12: Body composition, skin, recovery all improved. Hunger side effect is immediate and obvious. Minimum commitment: 8 weeks.

Contraindications & Do Not Combine

• Do NOT combine with exogenous HGH • Do NOT combine with GHRP-6 (same receptor class — pick one) • Avoid combining with Hexarelin (stacking GHRPs = excessive cortisol/prolactin)

Common Side Effects

Increased appetite (significant — 20-30%), water retention, cortisol elevation, prolactin elevation, flushing

Drug Interactions

Somatostatin analogs, dopamine agonists may reduce prolactin effect

Reversibility

Reversible — may take slightly longer to normalize cortisol/prolactin if elevated

Key Peer-Reviewed References

All studies are published in indexed journals unless otherwise noted.

• Bowers et al. (1990) Endocrinology 126:517-23 — Original GHRP characterization • Bowers et al. (2004) J Pediatr Endocrinol Metab 17:555-73 • NOT FDA APPROVED • More cortisol/prolactin elevation than ipamorelin

Research Disclaimer

Almost all data is preclinical (animal or in-vitro). No large-scale randomised controlled human trials are available for most compounds on this catalogue. This information is provided for research reference only.

Storage Requirements

Reconstituted: 2-8°C, 14-21 days

State	Condition	Duration
Lyophilised (sealed)	2–8°C	12-24 months
Reconstituted	2-8C	4–6 weeks

Reconstitution Note

Reconstitute with bacteriostatic water (BAC water). Do not shake vigorously -- swirl gently to dissolve. Inject BAC water slowly down the side of the vial to avoid denaturing the peptide.

Video Resources

GHRP-2 discussed by researchers & practitioners

Independent educational content from researchers, clinicians, and science communicators. Not affiliated with Pepnerd — provided as supplementary reading.

Educational resources only. The videos above are independent third-party content from researchers, clinicians, and science communicators. Pepnerd is not affiliated with any of these creators and does not endorse or make any claims based on their content. All products are sold strictly for in-vitro scientific research.

Select Vial Size

$30.00 per vial

Submit Your Test Results →

Quick Reference

Half-life	~1-2 hours
Delivery	SubQ injection
Typical dose	100-300mcg
Storage (lyoph.)	2–8°C
Storage (recon.)	4–6 weeks
Endogenous?	Secretagogue (stimulates natural)
Suppression	Mild cortisol/prolactin elevation
WADA	Prohibited (S2)
FDA status	Category 2 (2023)