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Put two entries side by side — evidence, mechanism, risks, and community claims.
Follistatin 344
Anecdotal
Research chemical
Summary
Myostatin-pathway related protein/peptide product marketed for extreme muscle growth; high risk, poor quality control.
Categories
Performance
Mechanism
Neutralizes myostatin/activin signaling → potential muscle hyperplasia/hypertrophy in models.
Half-life
Product-dependent; often unclear in research vials
Routes
Intramuscular injection; Subcutaneous injection
Legal / access
Unapproved; quality of gray-market products is a major concern.
Key risks
- Unknown purity risks
- Potential unintended growth tissue effects
- Immune reactions
- Theoretical cancer and organ concerns
Common claims
- Dramatic muscle gain
- Myostatin blocker shortcuts
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