Hexarelin
Hexarelin (examorelin) is a synthetic six-amino-acid growth-hormone-releasing peptide (GHRP). It mimics ghrelin to activate the growth hormone secretagogue receptor (GHSR) and binds to CD36 receptors, promoting strong growth hormone spikes alongside distinct potential cardiovascular and tissue-protective effects. [1, 2, 3, 4]
Core Characteristics
- Function: Stimulates robust, dose-dependent release of pituitary growth hormone.
- Receptors: Activates both GHSR-1a in the brain and CD36 scavenger receptors in cardiac tissue.
Mechanisms and Effects
- Potency: Displays high potency in triggering growth hormone secretion.
- Tachyphylaxis: Repeated or prolonged high-dose use quickly leads to receptor desensitization and diminished hormonal response.
- Cardiovascular Study: Evaluated in laboratory settings for potential protective benefits on heart tissue and blood vessels independent of growth hormone pathways.









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