Activin-binding protein that inhibits myostatin, the primary negative regulator of muscle growth. Follistatin 344 is the broadest-acting isoform, also suppressing FSH. Allows muscle growth beyond genetic limits by removing the myostatin brake.
Inject SubQ or IM daily for 10-30 day courses. Short courses recommended due to FSH suppression. Monitor hormones during use.
Use our reconstitution calculator to get exact syringe draw volumes for your specific vial and dose.
Log doses, calculate reconstitution, set reminders, and get AI guidance for Follistatin 344.
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