Hexarelin

The strongest growth hormone secretagogue of the group, with the most trade-offs.

What it is

Hexarelin is a six amino acid ghrelin receptor agonist, related to GHRP-6 but more potent.

How it works

It produces a large GH pulse and also shows direct effects on heart tissue in research. The strength comes with cortisol and prolactin increases that gentler options avoid.

What it is researched for

• Growth hormone release
• Cardiac tissue in animal research
• Strength and recovery

Research status

Not approved. Desensitisation with continuous use is documented.

What to watch for

• Receptor desensitisation within weeks of continuous use
• Cortisol and prolactin increases
• Water retention and hunger

Storage

Lyophilised powder keeps in the freezer or fridge, away from light. Once reconstituted with bacteriostatic water, keep it refrigerated and use it within about four weeks.

Common questions

Why not use it all the time?

Response drops off with continuous dosing. Protocols run short blocks with breaks between them.

Is ipamorelin a better starting point?

For most people researching GH secretagogues, yes. It has a cleaner side effect profile.

Educational reference only, not medical advice.