PEG-MGF
PEGylated Mechano Growth Factor / PEGylated IGF-1Ec
A PEGylated (polyethylene glycol-conjugated) version of Mechano Growth Factor that dramatically extends the half-life from minutes to days. Unlike native MGF which requires site-specific intramuscular injection, PEG-MGF can be injected subcutaneously for systemic distribution. Activates satellite cells throughout the body for whole-body muscle repair and growth.
Half-life
Several days (PEGylation extends half-life)
Typical Dose
200 mcg 2–3x/week
1.7999999999999998/3Route
subcutaneous
Category
growth_hormone
Evidence Overview
Strength of evidence across clinical, expert, and experimental lanes.
How PEG-MGF is dosed in practice
Usually taken by subcutaneous (SubQ) injection. Typical range: 200 mcg 2–3x/week. Half-life: Several days (PEGylation extends half-life). Each card gives the dose, frequency and duration from one evidence lane: Clinical (human trials), Expert (practitioner protocols) or Experimental (early or animal data). These ranges describe what has been studied or used; they are not a prescription.
Work out the units to draw with the reconstitution calculator, how long a vial lasts with the vial duration calculator, and how levels fall between doses with the half-life calculator.
Preferred over native MGF in the biohacking community due to convenience of SubQ injection and longer half-life. Users report systemic muscle fullness, accelerated recovery, and enhanced response to training. Best used on rest days since training naturally produces endogenous MGF. Quality and purity vary significantly between vendors.
- Bodybuilding peptide community protocols
- PEG-MGF vs MGF comparison threads
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Upgrade to ProSafety & Contraindications
- Cancer history (IGF-1 pathway stimulation)
- Pregnancy or breastfeeding
- Known PEG allergy
PEG-MGF: common questions
What is PEG-MGF?
A PEGylated (polyethylene glycol-conjugated) version of Mechano Growth Factor that dramatically extends the half-life from minutes to days. Unlike native MGF which requires site-specific intramuscular injection, PEG-MGF can be injected subcutaneously for systemic distribution. Activates satellite cells throughout the body for whole-body muscle repair and growth.
How is PEG-MGF dosed?
PEG-MGF is usually taken by subcutaneous (SubQ) injection. Typical range in DoseCraft's library: 200 mcg 2–3x/week. Experimental (early or animal data): 200 mcg 2–3x per week (SubQ); 2–3x weekly on rest days; 4–6 week cycles. These ranges describe what has been studied or used; they are not a prescription.
Is PEG-MGF FDA-approved?
No. PEG-MGF is not approved by the FDA for any use in people.
What is the half-life of PEG-MGF?
DoseCraft's library lists a half-life of Several days (PEGylation extends half-life). Half-life sets how often a compound is dosed and how long it takes to clear: about five half-lives.
Who should not use PEG-MGF?
Listed contraindications: Cancer history (IGF-1 pathway stimulation); Pregnancy or breastfeeding; Known PEG allergy.
Information is for educational purposes only. Always consult a licensed healthcare provider before starting any peptide regimen.
Page updated . How we grade evidence: methodology.