Hexarelin
Also known as: examorelin
By GLPeptideSciences Editorial Team · How we evaluate evidence · Reviewed by Dr. George S. Watson, MD, Cardiothoracic Surgeon · Updated 2026-06-02
A potent growth-hormone-releasing peptide acting on the ghrelin receptor, with additional research interest in cardiac tissue.
What it is & how it works
What it is
Hexarelin is among the more potent growth-hormone-releasing peptides, acting on the ghrelin receptor like the GHRP family.
How it is thought to work
It strongly stimulates pituitary GH release. It has also drawn separate research interest for direct effects on cardiac tissue, independent of GH.
The evidence and the caveat
Its potency comes with a catch: continuous use is associated with desensitization of the GH response. Long-term human outcome data is limited, and the usual GH-axis cautions apply.
What it's discussed & studied for
- Growth hormone / IGF-1 stimulation
- Cardiac tissue research (preclinical)
Discussion of a use is not a claim that it works or is approved.
Research status
Studied as a potent GH secretagogue and in cardiac research; not approved as a general therapeutic. Tolerance to its GH effect with continuous use is a noted issue.
Evidence quality
Real pharmacology with limited long-term human data; desensitization with sustained use is documented.
Dosing discussion
Research-context doses exist; consumer protocols are extrapolated. Continuous use is associated with diminishing GH response.
Educational summary of what is discussed in the literature and community — not a dosing recommendation or medical advice.
Safety & harm reduction
Raises GH/IGF-1; may affect cortisol/prolactin. GH-axis cautions apply; not approved.
Sourcing literacy
No approved consumer product; research-market material is unverified.
Selected literature
FAQ
Why do people cycle hexarelin?
Continuous use is associated with desensitization (a reduced GH response over time), so it's often discussed in limited or pulsed protocols rather than continuously.