ANP (Atrial Natriuretic Peptide) vs Ipamorelin

A detailed comparison to help you understand the differences and choose the right peptide for your research goals.

ANP (Atrial Natriuretic Peptide)

ANP is a cardiac hormone released by atrial myocytes in response to stretch. It promotes natriuresis, diuresis, and vasodilation, playing key roles in blood pressure and fluid regulation.

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Ipamorelin

Ipamorelin is a selective growth hormone secretagogue that stimulates the release of growth hormone from the pituitary gland without significantly affecting cortisol or prolactin.

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Side-by-Side Comparison

Aspect	ANP (Atrial Natriuretic Peptide)	Ipamorelin
Dose Range	25 mcg–100 mcg	100 mcg–300 mcg
Frequency	1x daily	2x daily
Cycle Length	1–4 weeks	8–12 weeks
Route	subcutaneous	subcutaneous
Mechanism	Binds to natriuretic peptide receptors (NPR-A) to activate guanylyl cyclase, producing cGMP. This leads to vasodilation, increased kidney filtration, and inhibition of the renin-angiotensin-aldosterone system.	Acts as a ghrelin mimetic, binding to the ghrelin receptor (GHS-R) in the pituitary to stimulate GH release. Highly selective with minimal effect on other hormones.
Typical Dosage	Clinical use: Carperitide (recombinant ANP) used in Japan for acute heart failure at 0.1mcg/kg/min IV infusion.	Typical dosing ranges from 200-300mcg administered 2-3 times daily, often combined with CJC-1295.
Administration	Intravenous infusion only for clinical applications. Short half-life (~2 minutes) requires continuous administration.	Subcutaneous injection. Best results when administered fasted or before sleep. Often stacked with GHRH peptides.
Side Effects	Hypotension (dose-limiting), headache, nausea, and potential arrhythmias at high doses.	Generally well-tolerated. May cause mild headaches, lightheadedness, or increased hunger initially.
Best For	Recovery & Healing	Muscle Growth Fat Loss Recovery & Healing Sleep Quality