Side-by-Side Comparison · 2026

GHRP-2 vs Hexarelin

GHRP-2 vs Hexarelin — mechanism, half-life, dosing, and research status compared. Which is right for your protocol?

GHRP-2
Growth Hormone

GHRP-2 (Pralmorelin) is a synthetic hexapeptide growth hormone releasing peptide and one of the most potent first-generation GHRPs. It stimulates pituitary GH secretion via the ghrelin receptor (GHSR-1a) with greater potency than GHRP-6, while producing less appetite stimulation....

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Hexarelin
Growth Hormone

Hexarelin (Examorelin) is the most potent GHRP in clinical research, producing the largest GH pulses per microgram of any peptide in its class. Its methylated tryptophan residue (2-MeTrp) compared to GHRP-6 accounts for its increased potency....

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Key Parameters
Parameter GHRP-2 Hexarelin
Category Growth Hormone Growth Hormone
Research Extensively Studied Extensively Studied
Half-Life ~30–60 min ~70 min
Typical Dose 100–300 µg 100–200 µg
Frequency 1–3× daily 1–3× daily
Route Subcutaneous Subcutaneous
FDA Status Not Approved (US) Not Approved

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Frequently Asked Questions
What is the difference between GHRP-2 and Hexarelin?
GHRP-2: GHRP-2 (Pralmorelin) is a synthetic hexapeptide growth hormone releasing peptide and one of the most potent first-generation GHRPs. It stimulates pituitary GH secretion via the ghrelin receptor (GHSR-... Hexarelin: Hexarelin (Examorelin) is the most potent GHRP in clinical research, producing the largest GH pulses per microgram of any peptide in its class. Its methylated tryptophan residue (2-MeTrp) compared to ...
Which has a longer half-life, GHRP-2 or Hexarelin?
GHRP-2 half-life: ~30–60 min. Hexarelin half-life: ~70 min.
Can you stack GHRP-2 and Hexarelin?
GHRP-2 and Hexarelin are in the same category and used together in research protocols. Always consult relevant literature and follow appropriate guidelines.

For research use only. Not medical advice. ASCEND does not conduct or endorse any specific research protocol. Always consult relevant scientific literature and regulatory guidelines.