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Healing & Recovery
Preclinical
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Ipamorelin

Ipamorelin

Also known as: IPA, NNC 26-0161

Overview

Key Facts

Primary Goal: Research and therapeutic applications of Ipamorelin

Selectively activates the GHS-R1a (ghrelin) receptor on pituitary somatotrophs. Triggers intracellular calcium signaling to promote GH vesicle exocytosis.

Dosing Information

Half-Life

~2 hours

Typical Dose

100–300 mcg

Frequency

2-3 times daily

Cycle Length

8-16 weeks

Administration Routes:
subcutaneous

Benefits

  • Clean GH release with minimal side effects
  • Does not significantly increase cortisol or prolactin
  • Improved sleep architecture and deep sleep
  • Enhanced recovery from exercise and injury
  • Gradual improvement in body composition
  • Minimal impact on appetite

Side Effects

Mild headachemild
Transient lightheadedness post-injectionmild
Possible water retention at higher dosesmild

Mechanism of Action

1

Selectively activates the GHS-R1a (ghrelin) receptor on pituitary somatotrophs

2

Triggers intracellular calcium signaling to promote GH vesicle exocytosis

3

Does not activate pathways associated with cortisol or prolactin release

Contraindications

Do not use this peptide if any of the following apply:

  • Active malignancy
  • Pregnancy or breastfeeding
  • Known hypersensitivity to the compound

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

Research Summary

Preclinical

Ipamorelin has been studied in multiple clinical trials including post-operative ileus and growth hormone deficiency models. Research consistently demonstrates dose-dependent GH release with a favorable selectivity profile, showing no clinically significant increases in ACTH, cortisol, or prolactin at therapeutic doses. It is widely regarded as the most side-effect-friendly GHRP.

Frequently Asked Questions

Common questions about Ipamorelin

UK-Specific Information

Exclusive data points and guidance for UK residents using Ipamorelin

UK Lab Testing

UK Lab Testing

Recommended labs: Medichecks, Thriva (£89-£149 for peptide safety panel)

Why this matters: UK-specific lab testing guidance not available on US competitor sites

Commonly Stacked With

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