Follistatin 344 vs Decapeptide-12
Side-by-side comparison of key properties, dosing, and research.
Anabolic & IGF
Follistatin 344Skin & Cosmetic
Decapeptide-12- 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.
- Decapeptide-12 is a synthetic 10-amino acid peptide developed for skin brightening and depigmentation. It selectively inhibits tyrosinase activity and downstream melanogenesis pathways, reducing hyperpigmentation, dark spots, and uneven skin tone without the irritation associated with hydroquinone.
- Half-Life
- ~24–36 hours
- Not applicable (topical)
- Admin Route
- SubQ, IM
- Topical
- Research
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- Typical Dose
- 100 mcg
- 5 ppm (0.0005%) concentration
- Frequency
- Once daily
- Twice daily (AM and PM)
- 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
- Reduces hyperpigmentation and dark spots
- Evens skin tone and improves radiance
- Inhibits post-inflammatory hyperpigmentation
- Well-tolerated alternative to hydroquinone
- Effective for melasma and age spots
- Non-cytotoxic to melanocytes
- 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)
- Generally very well-tolerated
- Rare mild irritation or sensitivity in some skin types
- Results may take several weeks to become visible
- Stacks With
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