Follistatin 344
Myostatin inhibition
Myostatin inhibitor — for muscle growth past the genetic ceiling.
Research chemical vendors can't legally label products with the real name, so Follistatin 344 often appears under coded SKUs. If you're shopping and see any of these, it's the same compound:
- FST
- FST-344
Codes shown are for identification only. Always verify third-party COAs before purchase.
Follistatin binds and neutralizes myostatin, the protein that tells skeletal muscle to stop growing. Removing the brake produces hyperplasia (new muscle fiber formation), not just hypertrophy.
- Breaking through plateaus in advanced trainees
- Run as a 20-day localized protocol once or twice a year
- Not a substitute for training stimulus — it amplifies whatever signal you already give the muscle
Educational only · Not a vendor claim
Binds and neutralizes myostatin, removing the brake on skeletal muscle growth and enabling hyperplasia.
- New muscle fiber formation
- Breaks through hypertrophy plateaus
- Strength gains in advanced trainees
- Noticeable muscle fullness
- Faster strength progression
- Improved recovery
- Permanent fiber count changes (theoretical)
- Short, infrequent cycles
- Doesn't suppress HPTA
- Expensive
- Quality varies sharply
- Long term cardiac/tissue concerns unknown
- Possible tendon stiffness
- Mild fatigue
- Rare joint discomfort
Educational summary · Not medical advice · Discuss with a qualified clinician
Typical timeline
General pattern for the Muscle category. Individual response varies.
- Week 1Deeper sleep, vivid dreams, possible morning hand tingling — normal GH-axis signals.
- Weeks 2–4Recovery between sessions improves. Modest fullness in muscles from mild water retention.
- Weeks 4–8Body comp changes become visible. Fat drops slightly, muscle looks fuller. Bloodwork check recommended.
- Weeks 8+Cycle off for at least equal time to restore natural pulsatility. Track IGF-1 if running longer.
Pairs well with
Common combinations experienced users run alongside Follistatin 344. Always add one peptide at a time so you can attribute effects and side effects.
Read the safety guide before stacking.
The reconstitution math
- 1Reconstitute the 1 mg vial with 2 mL of bacteriostatic water. Tilt — don't shake.
- 2Concentration becomes 500 mcg/mL (0.5 mg/mL).
- 3For a 200 mcg dose, draw 0.400 mL — that's 40 units on a 1 mL insulin syringe.
- 4One vial gives you approximately 5 doses.
Reminder: 100 units on an insulin syringe = 1 mL. Always start at half the listed dose for the first week and rotate injection sites between arms, legs, abdomen, and glutes.
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