What is the half-life of GHRP-2?

GHRP-2 has a half-life of 15-60 minutes, which is why it's typically administered 2-3 times daily for optimal therapeutic effect.

How do I reconstitute GHRP-2?

Add bacteriostatic water to the peptide vial slowly down the side. Typical reconstitution uses 2-3ml of water for a 5mg vial. Gently swirl, do not shake.

Growth Hormone

Phase 3

GHRP-2

Also known as: Pralmorelin, KP-102, D-Ala-D-beta-Nal-Ala-Trp-D-Phe-Lys-NH2

Overview

Key Facts

Primary Goal: A synthetic hexapeptide GH secretagogue considered the most potent in the GHRP family

A synthetic hexapeptide GH secretagogue considered the most potent in the GHRP family. It produces strong GH release through the ghrelin receptor with moderate effects on appetite, cortisol, and prolactin, falling between GHRP-6 and ipamorelin in selectivity. Half-Life 15-60 minutes Typical Dose 100–300 mcg Frequency 2-3 times daily Cycle Length 8-16 weeks

Dosing Information

Half-Life

15-60 minutes

Typical Dose

100–300 mcg

Frequency

2-3 times daily

Cycle Length

8-16 weeks

Administration Routes:

subcutaneousintravenous

Storage & Reconstitution

Unreconstituted (Powder)

Temperature2–8°C (36–46°F) or -20°C (-4°F) for long-term

DurationUp to 3 months

Reconstituted (Mixed)

Temperature2–8°C (36–46°F)

Duration2-4 weeks

Note: Protect from light. Do not freeze reconstituted solution.

Research Summary

Phase 3

GHRP-2 (Pralmorelin) has been approved in Japan as a diagnostic agent for GH deficiency and extensively studied in clinical settings. Research demonstrates it produces the highest peak GH levels among GHRPs, approximately 20-40% greater than GHRP-6. Studies also suggest neuroprotective effects in models of neurodegeneration.