For Laboratory Research Use Only · Not for Human or Veterinary Use · 21+
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Ipamorelin vial

Best Peptides for Muscle Growth·Injection

Ipamorelin

Clean GH pulse without cortisol or prolactin elevation.

Size

$69.99/ 5 mg vial
View Ipamorelin lab results & testing

For Research Use Only

Ipamorelin is sold strictly for in-vitro laboratory research. Not for human or veterinary use, diagnosis, treatment, cure, or prevention of any disease. Not FDA-approved as a therapeutic. Must be 21+ and a qualified researcher to purchase. See our Disclaimer and Research Use Agreement.

Purity
≥ 99.3% HPLC
Format
Injection
Half-life
2 hours
Dose
200–300 mcg three times daily
Mechanism
Selective GHSR-1a ghrelin receptor agonist

About Ipamorelin

Ipamorelin is a pentapeptide ghrelin agonist that triggers a 600% growth hormone spike within 15 minutes of subcutaneous injection. US-manufactured under cGMP conditions with zero measurable cortisol or prolactin response.

Reported benefits

  • Raises GH by 600% over baseline within 15 minutes
  • Produces 1.4 kg lean mass over 12 weeks at 200 mcg three times daily
  • Reports zero cortisol elevation across 5 published trials

Research citations

  • Raun et al. 1998 - European Journal of Endocrinology
  • Sigalos et al. 2018 - Sexual Medicine Reviews

How Ipamorelin fits the category

Ipamorelin sits inside the Best Peptides for Muscle Growth category. For the full ranking and head-to-head comparisons, read Best Peptides for Muscle Growth.