GHRP-2
Also known as: Growth Hormone Releasing Peptide-2, Pralmorelin, KP-102
The Powerful GH Releaser
Potent GH secretagogue. Stronger than ipamorelin but with more side effects including hunger. Great for those who want maximum GH release and don't mind increased appetite.
How It Works
Simple Explanation
GHRP-2 mimics ghrelin, the hunger hormone, to trigger your pituitary gland to release growth hormone. It produces a stronger GH spike than gentler peptides like ipamorelin, but also increases hunger and cortisol slightly.
Technical Details
Synthetic hexapeptide that stimulates growth hormone release via the ghrelin receptor (GHSR/GHS-R1a). Produces robust GH pulses by both direct pituitary stimulation and hypothalamic GHRH release. More potent than ipamorelin but less selective - also increases cortisol, prolactin, and ACTH to a small degree.
Pharmacokinetics & Storage
Half-Life
15-30 minutes
Duration in circulation
Storage Requirements
Reconstitute with bacteriostatic water. Stable peptide. Can be stored at room temperature short-term but refrigeration recommended.
Research Timeline: What Studies Have Observed
Based on clinical trial data and published research. Individual responses may vary significantly.
Immediately
GH pulse within 15-30 minutes of injection
Week 1-2
Improved sleep, increased appetite
Week 4-8
Noticeable recovery improvements
Week 8-12
Body composition changes become visible
Benefits
- Strong growth hormone release
- Increased muscle protein synthesis
- Improved recovery from training
- Enhanced sleep quality
- Appetite stimulation (useful for bulking)
Potential Side Effects
Increased hunger
Very common
Feature for bulking, bug for cutting
Water retention
Common
Cortisol elevation (mild)
Common
Prolactin elevation
Occasional
Numbness/tingling
Occasional
Research Highlights
GHRP-2 GH Secretion Study (1992)
Potent GH release with dose-dependent response in healthy subjects
View StudyBody Composition Effects (1998)
Increased lean mass and decreased fat mass with chronic administration
View StudyFrequently Asked Questions
How does GHRP-2 compare to ipamorelin?
Why does GHRP-2 make me so hungry?
Can I stack GHRP-2 with CJC-1295?
Who Is It For
- Those seeking strong GH stimulation
- Hard-gainers who need appetite boost
- Athletes wanting enhanced recovery
- Those who tolerate hunger increase well
Who Should Avoid
- Those trying to lose weight (increases appetite)
- People with diabetes (affects blood sugar)
- Those sensitive to cortisol elevation
- Competitive athletes (may be banned)
Research Dosing Protocols
Common Research Protocol
100-300mcg, 2-3x daily
Administration Frequency (per studies)
2-3x daily on empty stomach
Delivery Methods
Available Forms
- • Subcutaneous injection
💡 Best times: morning, post-workout, before bed. Higher doses increase hunger significantly.
⚠️ Not Medical Advice: Dosing information is compiled from published research and clinical studies for educational purposes only. This is not a recommendation. All peptide research should be conducted by qualified professionals in controlled research environments. Consult a healthcare provider before considering any protocol.
Related Peptides
A cleaner growth hormone secretagogue with minimal side effects. Great for sleep, recovery, and body composition.
A GHRH analog that amplifies growth hormone release. Often stacked with Ipamorelin for synergistic effects.
The first GHRP developed. Strong GH release with extreme hunger - more than any other GHRP. Best for hard-gainers who need to eat more.
Most potent GHRP for single-dose GH release. Strongest spike but develops tolerance - must be cycled on and off.
⚠️ Important Disclaimer
This information is for educational purposes only and is not medical advice. Many peptides discussed are research compounds not approved for human use by the FDA. Always consult with a qualified healthcare provider before starting any peptide protocol. PepGains does not sell peptides and is not responsible for how this information is used. All timeline and efficacy information is based on published research and clinical trials - individual results may vary significantly.