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Growth Hormone Releasing Peptide-2
For educational and research purposes only. Not medical advice.
GHRP-2 produces the highest GH pulse of any peptide in the GHRP family. More selective than GHRP-6 but less clean than Ipamorelin. Preferred by those prioritizing maximum GH output over minimal side effects.
Best Time
Fasted — morning and before bed
Method
subcutaneous
Frequency
2-3x daily
Half-life
~25 minutes
Cycle Length
8-12 weeks
Storage
Refrigerate at 2-8°C.
Published Dosing Ranges
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Contraindications
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GHRP-2 (ghrelin mimetic) + Mod GRF 1-29 (GHRH analog) produce synergistic GH release. GHRP-2 is more potent than Ipamorelin but with slightly more appetite stimulation.
documentedBoth are GHRPs competing for the same ghrelin receptor. Combining two GHRPs does not produce additive GH release — it causes receptor overstimulation and accelerated desensitization.
communityAmerican journal of physiology. Regulatory, integrative and comparative physiology 293 (3) :R1013-21 · 2007-09-01
European journal of endocrinology 157 (1) :19-27 · 2007-07-01
American journal of physiology. Regulatory, integrative and comparative physiology 301 (4) :R1143-52 · 2011-10-01
The Journal of clinical endocrinology and metabolism 95 (1) :353-60 · 2010-01-01
Clinical pediatric endocrinology : case reports and clinical investigations : official journal of the Japanese Society for Pediatric Endocrinology 23 (4) :107-14 · 2014-10-01
Mechanism of Action
Potent ghrelin receptor agonist producing the strongest GH pulse of any GHRP. Also increases cortisol and prolactin. Stimulates appetite less than GHRP-6.
Reported by the community. These may not be supported by clinical evidence and are not medical recommendations.