PEG MGF - Front - MiPeptidos
Growth Hormone / GH Secretagogues

PEG MGF

CAS: Not formally assigned

PEG MGF is a research peptide in the growth hormone / gh secretagogues category. PEG-MGF shares the same mechanism as MGF (satellite cell activation, muscle repair, neuroprotection) but has been modified through PEGylation, which involves covalent attachment of polyethylene glycol chains. MiPeptidos offers PEG MGF in 1 sizes with 99.8% verified purity and full analytical documentation.

Starting at
$34.95/vial
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≥99% Purity
COA Included
Third-Party Tested
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CoA Included
HPLC Verified
GMP Compliant
Third-Party Tested
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How PEG MGF Works

PEG-MGF shares the same mechanism as MGF (satellite cell activation, muscle repair, neuroprotection) but has been modified through PEGylation, which involves covalent attachment of polyethylene glycol chains. This modification shields the peptide from enzymatic degradation, reduces renal clearance, and dramatically extends its half-life from minutes to hours. The sustained exposure allows for systemic distribution and more prolonged satellite cell activation.

Research Applications

1
Extended-release muscle repair studies
2
PEGylation pharmacokinetic optimization
3
Systemic vs. local MGF effects
4
Muscle hypertrophy with sustained dosing
5
Neuroprotection with extended duration
View Published Research on PubMed →

Pricing

SizePer Vial10-Pack
2mg
$34.95$254.95

Prices shown per vial from 10-pack. Volume discounts available for 50+ vials — contact us.

HPLC Purity Analysis

High-Performance Liquid Chromatography
99.8%purity
mAURetention Time (min)0250500750100005101520253099.8%
Method: RP-HPLC C18 ColumnDetection: UV 220nmMobile Phase: Acetonitrile/Water + 0.1% TFA

Certificate of Analysis

MiPeptidos
PEG MGF
PASSES ALL SPECIFICATIONS
Batch NumberHR-PGMG-2600215
Date of AnalysisFebruary 24, 2026
Purity (HPLC)99.8%
AppearanceWhite to off-white lyophilized powder
SolubilityFreely soluble in sterile water and bacteriostatic water
Molecular Weight (MS)~5000-6000 Da (depending on PEG size) — Confirmed
Endotoxin (LAL)<0.1 EU/mg
Sterility (USP <71>)Passes USP <71>

This COA is a representative sample. A batch-specific Certificate of Analysis with full HPLC chromatograms and mass spectrometry data is included with every MiPeptidos order.

Reconstitution Calculator

Add this much bacteriostatic water:
2.0 mL
2 mg PEG MGF + 2.0 mL BAC water = 1 mg/mL

Inject bacteriostatic water slowly along the vial wall. Gently swirl until dissolved — never shake. Store reconstituted solution at 2-8°C and use within 30 days.

Download Product Brochure

Get our detailed PEG MGF product brochure with specifications, research applications, HPLC analysis data, and reconstitution guide. Available in English and Spanish.

Customer Reviews

4.0/5from 1 review
Verified
Dr. Sophie Laurent·Montreal, QC

PEGylated MGF provides the extended half-life we need for longer-duration muscle biology experiments. The PEG conjugation is confirmed and the base MGF peptide is pure. Four stars because PEG-peptide conjugates are inher...

Dec 12, 2025
View All Reviews →

Frequently Asked Questions

PEG MGF (CAS: Not formally assigned) is a research compound, with a molecular weight of ~5000-6000 Da (depending on PEG size) in the Growth Hormone / GH Secretagogues category. PEG-MGF shares the same mechanism as MGF (satellite cell activation, muscle repair, neuroprotection) but has been modified through PEGylation, which involves covalent attachment of polyethylene glycol chains. This modification shields the peptide from enzymatic degradation, reduces renal clearance, and dramatically extends its half-life from minutes to hours. Researchers commonly investigate PEG MGF for Extended-release muscle repair studies, PEGylation pharmacokinetic optimization, Systemic vs. local MGF effects. Every vial from MiPeptidos includes batch-specific analytical documentation.
To reconstitute your PEG MGF 2mg vial, let it reach room temperature for about 15-20 minutes out of the freezer. Slowly inject 1mL of bacteriostatic water along the inside wall of the vial — never aim directly at the peptide cake. Gently swirl until the powder fully dissolves; never shake, as this can denature the peptide. Store reconstituted PEG MGF at 2-8°C and use within 30 days. MiPeptidos includes bacteriostatic water for purchase alongside all peptides.
PEG-MGF uses PEGylation to extend the circulating half-life of Mechano-Growth Factor from minutes to several hours, enabling systemic delivery and broader tissue distribution. The non-PEGylated form is cleared too rapidly for systemic use but is preferred for localized research. PEG-MGF (5000-6000 Da with PEG) still activates muscle satellite cells via IGF-1 receptor splice variant pathways but reaches more distant tissue sites. MiPeptidos offers both forms.
Store lyophilized PEG MGF at -20°C for maximum long-term stability — properly stored, it remains potent for 24+ months. Once reconstituted with bacteriostatic water, keep it refrigerated at 2-8°C and use within 30 days. In research applications, PEG MGF has a reported half-life of Several hours (significantly extended over native MGF), which informs dosing frequency and protocol design. Avoid repeated freeze-thaw cycles and protect from direct light. MiPeptidos ships every order with cold-chain packaging to maintain integrity during transit.
Every PEG MGF order from MiPeptidos includes a batch-specific Certificate of Analysis. Our current batch (HR-PGMG-2600215, tested February 24, 2026) shows 99.8% purity by HPLC, mass spectrometry confirmation at ~5000-6000 Da (depending on PEG size), endotoxin levels below 0.1 EU/mg, and passing sterility per USP <71>. This level of documentation ensures you can verify compound identity and purity before beginning your research. MiPeptidos also offers bulk pricing on orders of 50+ vials — contact info@mipeptidos.com.

Specifications

Purity
≥99%
Form
Lyophilized Powder
CAS Number
Not formally assigned
Mol. Weight
~5000-6000 Da (depending on PEG size)
Formula
C121H200N42O39 (core peptide; PEG adds variable molecular weight)
Half-Life
Several hours (significantly extended over native MGF)
Storage
Store at -20°C. Reconstituted: 2–8°C for up to 30 days.
Sizes
2mg

Sequence

Same MGF 24-amino acid sequence (YQPPSTNKNTKSQRRKGSTFEEHK) with covalent polyethylene glycol modification

Research Use Only. This product is intended for laboratory research purposes only. Not for human consumption. Handle with appropriate safety precautions.

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