What is the difference between Ipamorelin and MGF?

Ipamorelin: Ipamorelin binds to the ghrelin receptor (GHSR-1a) and stimulates dose-dependent GH release with a clean hormonal profile. MGF: Splice variant of IGF-1; acts locally at site of muscle damage to activate satellite cells (muscle stem cells) for repair and hypertrophy

Is Ipamorelin FDA approved?

Ipamorelin is not FDA approved and restricted from compounding. It is discussed for research and educational purposes only, not as medical guidance.

MGF is not evaluated or approved by the FDA. It is discussed for research and educational purposes only, not as medical guidance.

How is Ipamorelin administered in research settings?

In research settings, Ipamorelin is typically administered via the subcutaneous route. PeptideBase does not provide dosing or administration instructions.

How is MGF administered in research settings?

In research settings, MGF is typically administered via the intramuscular route. PeptideBase does not provide dosing or administration instructions.

Home›Research›Compare›Ipamorelin vs MGF

Peptide Comparison

Ipamorelin vs MGF

Name: Ipamorelin vs MGF — Per-mg Price Comparison
Creator: PeptideBase
License: https://peptidebase.io/terms

Both are GH / IGF Axis peptides.

Ipamorelin

NNC 26-0161

PerformanceBanned from CompoundingResearch Only

Half-life: 2 hours

470 providers listed

Full Ipamorelin profile →

MGF

Mechano Growth Factor

PerformanceNot EvaluatedResearch Only

Half-life: Minutes (rapidly degraded; PEG-MGF for extended action)

15 providers listed

Full MGF profile →

Bottom line

Ipamorelin carries stronger published evidence (RCT, 5 key studies) than MGF (Review, 2); both are research compounds.

Quick Verdict

Ipamorelin

Evidence

Emerging Clinical

Half-life

2 hours

MGF

Evidence

Preclinical

Half-life

Minutes (rapidly degraded; PEG-MGF for extended action)

Which One Should You Choose?

Your goal	Better option
Stronger clinical evidence	Ipamorelin
More provider options (470 vs 15)	Ipamorelin

Research summary only — not medical advice. Consult a qualified provider before making any decisions.

Side-by-Side Comparison

Ipamorelin

MGF

Mechanism Family

GH / IGF Axis

Half-life

2 hours

Minutes (rapidly degraded; PEG-MGF for extended action)

FDA Status

banned from compounding

not evaluated

Admin Routes

subcutaneous

intramuscular

Availability

Research Only

Providers

470 listed

15 listed

FDA Update

Sep 2023

—

Avail. Notes

Selective GH secretagogue pentapeptide. Phase 2 by Helsinn (postoperative ileus) discontinued for lack of efficacy. No FDA approval. Not on FDA 503A bulks list. Research chemical.

Non-PEGylated IGF-1 splice variant (Mechano Growth Factor). No FDA approval. WADA prohibited. Not on any FDA list. Research chemical only.

Research Evidence

Ipamorelin

Emerging ClinicalRCT · 5 key studies · most recent 2026

MGF

PreclinicalReview · 2 key studies · dated evidence base — most recent 2011

Research Citations

Ipamorelin

Review2026 · J Sports Med Phys Fitness

A new era of doping? Use of peptide and peptide-analog drugs in recreational and professional sport and bodyb…

Review2026 · Int J Mol Sci

Therapeutic Peptides in Aesthetic, Metabolic and Endocrine Conditions: Effects, Safety, Clinical Applications…

Review2026 · JBJS Rev

Injectable Peptides in Sports Medicine: A Structured Narrative Review of Evidence, Safety, and Antidoping Imp…

RCT2014 · International Journal of Colorectal Disease

Prospective, randomized, controlled, proof-of-concept study of the Ghrelin mimetic ipamorelin for the managem…

+1 more

MGF

In vitro2011 · Mechanisms of Ageing and Development

Mechano Growth Factor E peptide (MGF-E), derived from an isoform of IGF-1, activates human muscle progenitor…

Review2010 · Endocrinology

Minireview: Mechano-growth factor: a putative product of IGF-I gene expression involved in tissue repair and…

About Ipamorelin

Ipamorelin binds to the ghrelin receptor (GHSR-1a) and stimulates dose-dependent GH release with a clean hormonal profile. Unlike GHRP-6 or hexarelin, it does not significantly stimulate appetite-related pathways or cortisol secretion at standard research doses. This selectivity makes it a frequently studied peptide for protocols where hormonal side-effect profiles are a consideration.

Research Areas

selective GH release without cortisol or prolactin co-stimulationpulsatile GH secretion — synergistic with CJC-1295 in combination protocolslean mass support and fat metabolism via GH/IGF-1 axis modulationsubcutaneous injection 100–300 mcg; minimal receptor desensitization vs other GHRPs

About MGF

Splice variant of IGF-1; acts locally at site of muscle damage to activate satellite cells (muscle stem cells) for repair and hypertrophy

Research Areas

muscle satellite cell activation following mechanical loadingautocrine/paracrine local muscle repair signal (distinct from systemic IGF-1)progenitor cell proliferation and fusion enhancement in vitroPEG-MGF variant extends half-life for research applications — no human clinical data for either form

Safety Profile

Information below reflects published research data only — not medical advice. Consult a qualified provider before use.

Ipamorelin

Absolute Contraindications

Under clinical review

Being verified by our medical team before we display contraindications for this peptide.

Suggested Monitoring

IGF-1Fasting glucoseHbA1cInsulin

Research protocols routinely measure IGF-1 to track GH axis activity before and during use. Fasting glucose and insulin are monitored because GH elevation can reduce insulin sensitivity over time.

Regulatory Notes

global — WADA

This compound falls under WADA Prohibited List category S2 (Peptide Hormones, Growth Factors, Related Substances and Mimetics), prohibited at all times for competing athletes.

source

MGF

Absolute Contraindications

Under clinical review

Being verified by our medical team before we display contraindications for this peptide.

Used Together?

Ipamorelin

CJC-1295
Research suggests Ipamorelin and CJC-1295 may produce enhanced growth hormone release effects when combined. CJC-1295 provides sustained GHRH receptor stimulation while Ipamorelin provides pulsatile ghrelin receptor stimulation — complementary pathways studied in GH secretion research.
Mod GRF 1-29
Research suggests Ipamorelin and Mod GRF 1-29 may produce enhanced growth hormone pulse effects when combined. Ipamorelin acts via ghrelin receptors (GHSR) while Mod GRF 1-29 acts via GHRH receptors — distinct pathways that research suggests may amplify GH secretion when activated together.
Sermorelin
Research suggests Sermorelin and Ipamorelin may produce complementary growth hormone release effects when combined. Sermorelin acts as a GHRH analogue via pituitary receptors, while Ipamorelin acts via ghrelin receptors — dual-pathway stimulation studied in GH optimization research.

Price (per mg)

Ipamorelin

$7.00/mg

$5.00 – $9.60 range

69 vendors

View price index →Find providers →

MGF

Not enough vendor pricing yet.

Find Providers

Where to source these peptides

Providers offering

Ipamorelin

470 listed

Browse directory →

Providers offering

MGF

15 listed

Browse directory →

PeptideBase lists providers for educational research purposes only. Always consult a qualified healthcare professional before obtaining or using any peptide.

More GH / IGF Axis Comparisons

Browse all peptides →

Educational research tools — not medical advice.

Cite this page

Data last updated July 20, 2026

Free to reference and republish with attribution to PeptideBase. Choose a format:

PeptideBase. (2026). Ipamorelin vs MGF — Per-mg Price Comparison. Retrieved July 22, 2026, from https://peptidebase.io/peptides/compare/ipamorelin/mgf

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