GHRP-6 vs Ipamorelin

Comparison

GHRP-6 and Ipamorelin are two peptides people frequently compare. 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.… Ipamorelin is a peptide people use to boost their body's own growth hormone output. It's taken for muscle recovery, body composition, better sleep, and recovery after illness or surgery. Not…

	GHRP-6	Ipamorelin
What it is	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.…	Ipamorelin is a peptide people use to boost their body's own growth hormone output. It's taken for muscle recovery, body composition, better sleep, and recovery after illness or surgery. Not…
Primary uses	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	Growth hormone stimulation / GH-IGF-1 axis modulation Postoperative ileus / gastrointestinal motility Counteracting glucocorticoid-induced muscle and bone catabolism Bone mineral content and longitudinal bone growth
How it works	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.	It's taken for muscle recovery, body composition, better sleep, and recovery after illness or surgery. Not FDA-approved; classified as investigational.
Common dose	100 mcg, subcutaneous injection, 3x daily (upon waking, pre-workout, and before bed)	200 mcg, subcutaneous injection, once daily, pre-sleep
FDA status	Not stated in reviewed literature — requires manual verification	Not stated in reviewed literature as FDA-approved for any indication. Reviewed literature describes ipamorelin as an unapproved/investigational compound for performance and musculoskeletal…
Evidence level	Human observational	Human RCT
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