Growth
MGF
Healing
24
Amino acids
Molecular weight
Peptide
Type
Non-pegylated IGF-1 splice variant produced locally in muscle tissue following mechanical stress. Has a very short half-life compared to PEG-MGF, requiring more frequent administration or localized injection.
Activates muscle satellite stem cells via receptor binding, stimulating MAPK/ERK signaling. Enhances protein synthesis and promotes muscle fiber repair. The E-peptide domain exhibits distinct activity from mature IGF-1.
Refrigerate at 2-8°C; use within 30 days
Daily, immediately post-workout
100-300mcg per injection
8-12 weeks
Satellite cell activation for muscle repair
Recovery support following mechanical stress
Localized tissue regeneration
Natural upregulation after exercise
This peptide is still gaining traction in the community.
Mechano Growth Factor | IGF-1 Splice Variant
This overview is informational and based on aggregated descriptions from studies and user reports.
Was it helpful?YesView the scientifc details of MGF.
24
Amino Acids
MGF
Lys
Lys
Position 24
Tyr
Tyr
Position 1
Gln
Gln
Position 2
Pro
Pro
Position 3
Pro
Pro
Position 4
Ser
Ser
Position 5
Thr
Thr
Position 6
Asn
Asn
Position 7
Lys
Lys
Position 8
Asn
Asn
Position 9
Thr
Thr
Position 10
Lys
Lys
Position 11
Ser
Ser
Position 12
Gln
Gln
Position 13
Arg
Arg
Position 14
Arg
Arg
Position 15
Lys
Lys
Position 16
Gly
Gly
Position 17
Ser
Ser
Position 18
Thr
Thr
Position 19
Phe
Phe
Position 20
Glu
Glu
Position 21
Glu
Glu
Position 22
His
His
Position 23
Intramuscular injection directly into target muscle immediately post-workout for localized effects due to short half-life.
| Goal | Dosage | Frequency | Route |
|---|---|---|---|
| Standard Protocol | 100 | 1 week range | IM into target muscle |
| Progressive Titration | 100 | 1 week range | IM bilateral |
| Localized Recovery | 200 | — | IM into worked muscle groups |
Materials needed:
Steps to reconstitute
The MGF Cycle section explains how long a typical cycle lasts and what to expect during each phase. Over time, your body can become less responsive with continuous use.
Taking breaks between cycles may help maintain effectiveness and support better overall results.
Dosing tools
Calculate peptide doses with our visual syringe guide.
0.3mL / 30 units
5 units
0.050 mL
1 mL
2 mL
3 mL
5 mL
Custom
Conversion: 1,000 mcg = 1 mg
Based on your vial and dilution inputs.
MGF
SINGLE COMPOUNDVolume per injection
0.05
mL
Concentration
10.00
mg/mL
Doses per vial
20
doses
Total injections per vial
20 injections
How it works
Based on a 10 mg MGF vial diluted with 1 mL of bacteriostatic water, each 500 mcg injection equals 0.05 mL.
Research Purposes Only
These calculators are provided for educational and research purposes only. Always verify calculations and consult with qualified professionals. The information provided is not medical advice. Peptides should only be used in accordance with applicable laws and regulations.
Note: Triple agonist; microdose for fewer side effects
Research suggestions of MGF interactions with other common peptides and substances.
Healing
bpc
Longevity
SYNERGISTIC
Complementary mechanisms. BPC-157 promotes angiogenesis; MGF activates satellite cells.
Growth
igf
Healing
MONITOR
Both target IGF-1 pathways; combining risks receptor overstimulation.
Growth
peg
Healing
MONITOR
Same active peptide with different half-lives. Combining is redundant; choose one based on protocol preference.
Healing
tb5
Longevity
SYNERGISTIC
TB-500 reduces inflammation and promotes cell migration; MGF activates muscle stem cells.
Monitor: Be careful when combining MGF with IGF-1 LR3, PEG-MGF.
Any history of cancer or neoplastic disease
Pregnancy or breastfeeding
Uncontrolled diabetes
Any unusual growths, lumps, or rapid tissue changes
Severe injection site reactions
Persistent headaches or vision changes
Signs of hypoglycemia
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Peptides can support cellular repair, immune function, metabolic health, and tissue regeneration. Research suggests they may help with recovery, sleep quality, skin health, and cognitive function, depending on the specific peptide and its mechanism of action.
Current research explores peptides for longevity, muscle recovery, wound healing, metabolic disorders, and neuroprotection. Scientists are also investigating peptide-based drug delivery and targeted therapies that could offer more precise treatment options.
Peptides work by binding to receptors on cells and triggering specific biological responses. Depending on the peptide, they may promote growth hormone release, support collagen production, modulate inflammation, or influence neurotransmitter activity—each with different implications for health and wellness.
Peer-reviewed journals such as Nature, Science, and specialized publications like Peptides and the Journal of Peptide Science publish ongoing research. PubMed and Google Scholar are useful for searching studies by peptide name or condition.
Research use of peptides typically follows institutional review board (IRB) protocols and regulatory guidelines. Dosage, administration route, and safety monitoring should align with published literature and applicable regulations in your jurisdiction.
Peptides are short chains of amino acids (typically under 50), while proteins are longer chains that fold into complex structures. Peptides are often more stable, easier to synthesize, and can cross cell membranes more readily, making them attractive for therapeutic applications.
Most peptides require refrigeration (2–8°C) and protection from light. Reconstituted peptides often have shorter stability and may need to be used within days or weeks. Always follow the manufacturer's or research protocol's storage instructions.
Some peptides are bioavailable orally, but many are broken down by digestive enzymes before reaching the bloodstream. Subcutaneous injection, nasal administration, or other routes are often used in research to improve bioavailability. The optimal route depends on the specific peptide.
MGF is a limited compound
MGF
MGF is a limited compound
MGF-E Peptide Human Muscle Cell Study
MGF significantly increased satellite cell proliferation at 3ng/ml with age-dependent effects.
2011
Mechano-Growth Factor Minireview
Overview of MGF as IGF-I gene product involved in tissue repair, upregulated following exercise and injury.
2010