New — Free Peptide Starter Guide (2026): 13 chapters, 34 cited studies

Get it free
ToolsCompareFollistatin 344 vs MOTS-c

Follistatin 344 vs MOTS-c

Side-by-side comparison of key properties, dosing, and research.

Anabolic & IGF
Follistatin 344
Anti-Aging & Longevity
MOTS-c
Summary
Follistatin 344 is a recombinant form of the endogenous follistatin protein. It inhibits myostatin and activin — the primary negative regulators of muscle growth — potentially removing the genetic ceiling on muscle development. It is one of the most theoretically powerful anabolic compounds but is experimental with limited human data.
MOTS-c is a mitochondria-derived peptide (MDP) encoded within the mitochondrial genome. It acts as a metabolic regulator, improving insulin sensitivity, enhancing exercise capacity, and counteracting age-related metabolic decline. It is often called a 'mitochondrial hormone.'
Half-Life
~24–36 hours
Estimated 1–2 hours
Admin Route
SubQ, IM
SubQ
Research
Typical Dose
100 mcg
5–15 mg
Frequency
Once daily
3–5 times per week
Key Benefits
  • Inhibits myostatin — removes muscle growth ceiling
  • Significant increases in muscle mass and strength
  • Reduces fat mass
  • Promotes bone density
  • May stimulate hair follicle cycling
  • Anti-fibrotic effects in muscle tissue
  • Synergistic with IGF-1 and other anabolic peptides
  • Improves insulin sensitivity and glucose metabolism
  • Enhances exercise capacity and endurance
  • Reduces age-related metabolic decline
  • Activates AMPK — the master metabolic regulator
  • Promotes fat oxidation
  • Anti-inflammatory effects
  • May extend healthspan via mitochondrial optimization
  • Increases energy and reduces fatigue
Side Effects
  • Muscle soreness (from rapid hypertrophy)
  • Potential reproductive effects (activin inhibition)
  • Unknown long-term safety profile
  • Possible esophageal effects at high doses (animal data)
  • Injection site irritation
  • Fatigue during initial adaptation
  • Unknown long-term profile (limited human data)
Stacks With