Compare Peptides

Select any two compounds for a side-by-side comparison of mechanism, uses, risks, and FDA regulatory status.

Popular comparisons

Hexarelin

Examorelin, His-D-2-MeTrp-Ala-Trp-D-Phe-Lys-NH2

Category 1
Growth Hormone Secretagogue

Ipamorelin

Category 1
Growth Hormone Secretagogue
Overview

A synthetic hexapeptide growth hormone secretagogue and one of the most potent GH-releasing peptides known. Stimulates GH release more strongly than most other GHS peptides, but also has significant effects on cortisol and prolactin.

A selective growth hormone secretagogue that stimulates GH release with minimal effects on cortisol and prolactin. Considered one of the 'cleanest' GH-releasing peptides due to its selectivity.

Mechanism of Action

Binds to ghrelin receptors (GHS-R1a) in the pituitary and hypothalamus, triggering strong GH release. Also has direct cardioprotective effects independent of GH, including protection against ischemia-reperfusion injury. Activates the CD36 receptor in cardiac tissue.

Binds to ghrelin receptors (GHS-R) in the pituitary gland, triggering pulsatile growth hormone release. Unlike other GH secretagogues, it does not significantly increase cortisol, ACTH, or prolactin levels.

Common Uses
  • Growth hormone optimization
  • Muscle mass and strength
  • Fat loss
  • Cardiac protection (emerging research)
  • Recovery from injury
  • Growth hormone optimization
  • Improved sleep quality
  • Fat loss
  • Muscle recovery and growth
  • Anti-aging protocols
Known Risks
  • Significant cortisol and prolactin elevation (more than Ipamorelin)
  • Water retention
  • Increased appetite
  • Desensitization with prolonged use
  • Limited long-term human safety data
  • Headaches
  • Water retention
  • Tingling sensations
  • Limited long-term human data
  • May affect blood sugar
Regulatory Status
Category 1

Reclassified to Category 1 in February 2026 as part of the HHS announcement restoring compounding access. Not affected by the April 15, 2026 Category 2 removal action. Available through licensed 503A compounding pharmacies with a physician prescription.

Category 1

Reclassified to Category 1 in February 2026 as part of the HHS announcement restoring compounding access. Not affected by the April 15, 2026 Category 2 removal action. Available through licensed 503A compounding pharmacies with a physician prescription.

This comparison is for educational purposes only and does not constitute medical advice. Always consult a qualified healthcare professional before starting any peptide therapy.