GHRP-2 Dosage Guide

Dosage overview

Dosing notes

Inject subcutaneously into the abdomen or another low-fat tissue site. Fasting before injection is important: food (especially carbohydrates and fat) blunts GH release by elevating insulin and somatostatin. Aim to inject at least 2 hours after a meal and wait 20 to 30 minutes before eating afterward. The three most common timing windows are morning (upon waking, fasted), pre-workout (45 to 60 minutes before training), and pre-sleep (2 hours after last meal). The pre-sleep dose aligns with the largest natural GH pulse, which occurs during slow-wave sleep. GHRP-2 is most effective when stacked with a GHRH analog such as CJC-1295 or modified GRF(1-29), which primes the pituitary for maximal GH release. This combination produces substantially larger GH pulses than either peptide used alone. Users aiming to minimize cortisol and prolactin side effects while still achieving GH stimulation may prefer ipamorelin, which is more selective. Users who accept broader side effects in exchange for the strongest possible GH pulse may prefer hexarelin.

Important safety information

Dosage ranges listed above are based on available research data and reported protocols. Individual dosing should be determined by a qualified healthcare provider based on your specific health profile, goals, and response to treatment.

• Start at the lowest effective dose and titrate up gradually
• Monitor for side effects, especially during dose increases
• Do not exceed researched dose ranges without medical supervision
• This is a research compound — human dosing guidelines are not FDA-established

Research references

• Comparison of growth hormone (GH)-releasing peptides: stimulation of GH release from perifused rat anterior pituitaries by GHRP-1, GHRP-2, GHRP-6, hexarelin, and MK-0677 — Endocrinology (1997) [PubMed]
• Growth hormone (GH)-releasing peptide-2 administration elevates GH and insulin-like growth factor-I concentrations and enhances nitrogen retention in normal subjects — Journal of Clinical Endocrinology and Metabolism (2004) [PubMed]
• Mechanism of action of growth hormone-releasing peptides — Endocrine Reviews (1999) [PubMed]