GHRP-2

t½ 30 minutes
Growth Hormone Releasing Peptide-2Pralmorelin

A synthetic hexapeptide GH secretagogue that stimulates growth hormone release by mimicking ghrelin at the GHSR receptor.

Dosing Ranges

Conservative

Starting dose

1.25 mcg/kg

Standard

Standard dose

2.5 mcg/kg

Aggressive

Aggressive dose

3.75 mcg/kg

Doses are in mcg per kg of body weight. Use the Dosage Calculator to get your exact dose.

Protocol Details

Frequency

2–3x daily

Cycle Length

8–12 weeks

Administration

Subcutaneous injection

Research Notes

  • 1One of the strongest GHRPs — produces a robust GH pulse.
  • 2May increase cortisol and prolactin at higher doses (unlike Ipamorelin).
  • 3Can stimulate appetite through ghrelin receptor activation.
  • 4Best administered on an empty stomach; fats and carbs blunt the GH response.

Common Vial Sizes

5 mg10 mg

Calculate your dose

Enter your body weight to get your exact dose in mcg for GHRP-2.

Open Dosage Calculator

More tools

Reconstitution

BAC water + injection volume

Half-Life Visualizer

Concentration curve over time

Syringe Converter

IU ↔ mL across syringe types

Where to source peptides

Research Use Only

Apollo Peptides

High-purity peptides, COA on every batch

20% commission

Peptide Sciences

US-based, 98%+ purity, fast shipping

Limitless Life Nootropics

Wide catalog, quantity discounts

For research use only. PepStack may earn a commission on purchases made through these links — at no extra cost to you.

For informational and research tracking purposes only. Not medical advice. Always consult a qualified healthcare professional before starting any peptide protocol.

Sources & References

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PepStack is for research and educational purposes only. This is not medical advice. Always consult a qualified healthcare provider before using any peptides. Dosing data is sourced from published research and community protocols — verify with your provider.

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