Molecular formula: C₄₅H₅₅N₉O₆

Molecular weight: ~817–818 g/mol

CAS number: 158861‑67‑7

Peptide type: Synthetic hexapeptide

Sequence: D‑Ala‑D‑2‑Nal‑Ala‑Trp‑D‑Phe‑Lys‑NH₂

GHRP‑2 (Growth Hormone Releasing Peptide‑2) is a synthetic hexapeptide that powerfully stimulates the body’s natural growth hormone (GH) release by activating the ghrelin receptor (GHS‑R1a).

It is one of the most potent and well‑studied GHRPs, originally developed as a diagnostic tool for growth‑hormone deficiency.

Key facts below are grounded in the search results: GHRP‑2 is a synthetic GH secretagogue that mimics ghrelin and triggers pulsatile GH release.

What GHRP‑2 Is

GHRP‑2 (also known as pralmorelin) is a synthetic growth‑hormone secretagogue designed to stimulate GH release through the ghrelin receptor (GHS‑R1a) in the hypothalamus and pituitary.

It is considered 2–3× more potent than GHRP‑6 in GH stimulation.

How GHRP‑2 Works

• Agonist of the ghrelin receptor (GHS‑R1a) → triggers GH release

• Stimulates cAMP signalling → promotes pulsatile GH secretion

• Synergistic with GHRH → amplifies GH output beyond either alone

• Mimics natural ghrelin → increases GH without suppressing feedback loops

 Key Characteristics

• Peptide class: Synthetic hexapeptide (6 amino acids)

• Also known as: Pralmorelin

• Primary action: GH secretagogue

• Potency: Stronger GH release than GHRP‑6

Legal and Safety Information;

Quantum Peptides products are provided exclusively for laboratory research and educational use.

They are not approved for human or veterinary applications.

These materials are not intended to diagnose, treat, cure, or prevent any medical condition.

All use must adhere to applicable laws and regulatory requirements.