Hexarelin

Also known as: Examorelin, HEX

One of the strongest GH secretagogues with cardioprotective properties.

Overview

Hexarelin is a synthetic hexapeptide and one of the most potent GH secretagogues known. Beyond GH release, it has notable cardioprotective effects independent of GH.

Mechanism of Action

Potent ghrelin receptor agonist causing robust GH release. Also binds cardiac receptors (CD36) providing direct cardioprotective effects independent of GH pathway.

Pharmacokinetics

Peak GH release at 20-30 minutes. Half-life approximately 70 minutes. Effects diminish with repeated use due to desensitization.

Dosing Protocols

Note: These are research protocols from literature. This is not medical advice.

1

Standard

Dose

100-200 mcg

Frequency

1-2x daily

Duration

4-8 weeks on, 4 weeks off

Cycling required to prevent desensitization

Stacking Recommendations

Peptides that may be combined based on complementary mechanisms in research settings.

Rationale: Maximum GH

Synergy: Potent combination for GH release

Research Areas

GH DeficiencyCardiac ProtectionMuscle GrowthAnti-Aging

Key Research Findings

  • 1Among the strongest GH release of all secretagogues
  • 2Direct cardioprotective effects via non-GH mechanisms
  • 3Improved cardiac function in heart failure studies
  • 4May cause desensitization requiring cycling

Side Effects & Contraindications

Reported Side Effects

  • Elevated cortisol
  • Elevated prolactin
  • Flushing
  • Hunger

Contraindications

  • Elevated prolactin
  • Active malignancy

Safety Considerations

Significantly elevates cortisol and prolactin. Desensitization occurs with continuous use. Requires cycling.

Storage Requirements

Store lyophilized at -20C

Scientific References

Quick Reference

Sequence
His-D-2-MeTrp-Ala-Trp-D-Phe-Lys-NH2
Molecular Weight
887 g/mol
Half-Life
~70 minutes
Bioavailability
High (SC)
Research Stage
clinical phase 2
Administration
Subcutaneous injection