What is the difference between Ipamorelin and GHRP-2?

Ipamorelin (Ipamorelin Acetate) is graded B and is Not FDA-approved — Category 1 (compounding allowed). GHRP-2 (Growth Hormone Releasing Peptide 2) is graded B and is Not FDA-approved — research compound; previously studied as growth hormone deficiency diagnostic. They are commonly compared because they share the categories: growth-hormone, anti-aging.

Which has stronger clinical evidence — Ipamorelin or GHRP-2?

On our internal evidence scale, Ipamorelin is B and GHRP-2 is B. A+ indicates large RCTs plus FDA approval; C indicates primarily preclinical or anecdotal evidence.

What is the typical dose of Ipamorelin vs GHRP-2?

Ipamorelin: 100–300 mcg before bed (subcutaneous). GHRP-2: 100–300 mcg, 1–3 times daily (subcutaneous). Always work with a licensed clinician — peptide dosing should be individualized.

Ipamorelin vs GHRP-2

Both Ipamorelin and GHRP-2 are used for growth-hormone and anti-aging. Here's how their evidence, dosing, and regulatory status actually compare.

Ipamorelin

Evidence B

Ipamorelin Acetate

A selective growth hormone secretagogue that triggers GH release from the pituitary without significantly raising cortisol or prolactin. The safest GH peptide with the fewest side effects.

View full Ipamorelin profile →

GHRP-2

Evidence B

Growth Hormone Releasing Peptide 2

A potent synthetic ghrelin-mimetic GH secretagogue. Drives strong GH spikes but raises cortisol and prolactin more than newer alternatives like Ipamorelin.

View full GHRP-2 profile →

Side-by-Side

Attribute	Ipamorelin	GHRP-2
Evidence Grade	B	B
FDA Status	Not FDA-approved — Category 1 (compounding allowed)	Not FDA-approved — research compound; previously studied as growth hormone deficiency diagnostic
Typical Dose	100–300 mcg before bed (subcutaneous)	100–300 mcg, 1–3 times daily (subcutaneous)
Clinics Indexed	195	86
Categories	growth-hormone, anti-aging	growth-hormone, anti-aging

Key reported benefits — Ipamorelin

✓Clean GH release
✓Improved sleep quality
✓Fat reduction
✓Joint health

Key reported benefits — GHRP-2

✓Strong GH release
✓Appetite stimulation
✓Muscle recovery

Educational use only

This comparison is for educational purposes and not medical advice. Peptide selection should be made with a licensed medical professional based on your individual goals, health history, and current evidence quality.

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