GHRP-2 (Growth Hormone Releasing Peptide-2) is a growth hormone-releasing peptide that increases the secretion of growth hormone (GH) in the body by mimicking ghrelin to activate the pituitary gland. It is primarily used for research purposes, with goals including supporting natural GH pulse release, potential improvement in body composition, recovery, and sleep.
Common Dosage Ranges
Daily Total Dose
Approximately 100–900 mcg/day (divided into 1–3 injections).
Single Injection
100–300 mcg (exceeding 300 mcg per single injection is not recommended).
Injection Frequency
1, 2, or 3 times daily (approx. 6–8 hours apart), depending on targets.
Best Practice
Injection on an empty stomach is recommended for optimal GH release.
Standard / Step-Up Protocol
Weeks
Dose per Injection
Injections / Day
Total Daily Dose
1–2
100 mcg
2
200 mcg
3–4
150 mcg
2
300 mcg
5–8
200 mcg
2
400 mcg
9–12
250–300 mcg
1–2
250–600 mcg
This gradual increase is commonly used to reduce rapid desensitization and side effects.
Advanced / More Aggressive Protocols
For experienced users or those with higher goals, some protocols recommend:
200–300 mcg per dose
Three injections daily (morning + noon + evening)
Total daily dose can reach 600–900 mcg
Reconstitution and Storage Recommendations
Temperature: Refrigerate at 2–8 °C
Stability: Typical stability after reconstitution is 28 days
Frequently Asked Questions (FAQ)
1. What is the primary mechanism of GHRP-2?
GHRP-2 works by mimicking ghrelin to stimulate the pituitary gland, thereby increasing natural growth hormone (GH) secretion in the body.
2. What is the recommended maximum single injection dose?
The standard single injection dose ranges from 100 to 300 mcg. Single injections exceeding 300 mcg per dose are not recommended.
3. Why is a step-up protocol recommended?
A gradual dose increase (step-up protocol) helps reduce rapid desensitization of GH release and minimizes potential side effects over time.
4. When is the best time to administer GHRP-2?
It is recommended to inject GHRP-2 on an empty stomach for optimal GH release, with doses spaced approximately 6–8 hours apart.
5. How long does reconstituted GHRP-2 stay stable?
Once reconstituted, GHRP-2 typically maintains its stability for up to 28 days when refrigerated at 2–8 °C.
6. What is the total daily dose range for advanced protocols?
Advanced protocols for experienced users may involve 200–300 mcg per dose, taken 3 times daily, reaching a total daily dose of 600–900 mcg.
