Hexarelin vs GHRP-6

Comparison

Hexarelin and GHRP-6 are two peptides people frequently compare. Hexarelin is a peptide people use to stimulate growth hormone release for body composition, recovery, and aging. It also shows potential for cardiovascular protection in animal studies, acting… GHRP-6 is a peptide people use to boost growth hormone output for muscle recovery, body composition, and general wellness. It's also used in clinical research as a diagnostic test for GH deficiency.…

	Hexarelin	GHRP-6
What it is	Hexarelin is a peptide people use to stimulate growth hormone release for body composition, recovery, and aging. It also shows potential for cardiovascular protection in animal studies, acting…	GHRP-6 is a peptide people use to boost growth hormone output for muscle recovery, body composition, and general wellness. It's also used in clinical research as a diagnostic test for GH deficiency.…
Primary uses	GH secretagogue / diagnostic test for GH reserve Cardiovascular protection / cardiac function improvement Neuroprotection (ALS model, oxidative stress, optic nerve injury) Metabolic disorders / diabetes / atherosclerosis (CD36-PPARγ pathway)	GH stimulation testing / diagnosis of GH deficiency in adults and children GH release stimulation in healthy subjects and various clinical populations (obesity, aging, thyroid disorders, Cushing's disease/syndrome, prolactinoma, Prader-Willi syndrome, polycystic ovary syndrome, type 2 diabetes, hypothyroidism, Addison's disease) Cytoprotection / organ protection in ischaemia-reperfusion and multiple organ failure Acute lung injury and pulmonary fibrosis prevention/treatment
How it works	It also shows potential for cardiovascular protection in animal studies, acting directly on heart tissue. Not FDA-approved; likely WADA-prohibited; most human evidence comes from GH diagnostic…	It's also used in clinical research as a diagnostic test for GH deficiency. Not FDA-approved for therapeutic use; banned by WADA; studied in organ protection and metabolic research.
Common dose	100 mcg, subcutaneous injection, 2-3x per day	100 mcg, subcutaneous injection, 3x daily (upon waking, pre-workout, and before bed)
FDA status	Not stated in reviewed literature — requires manual verification. One review notes absence of regulatory approval for physique- or performance-related indications; another notes strict FDA criteria…	Not stated in reviewed literature — requires manual verification
Evidence level	Human observational	Human observational
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