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Follistatin-344
🏋️
Follistatin-344
Muscle / GH
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Myostatin-inhibiting peptide studied for muscle growth.
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Class
Muscle, advanced
Forms
Injectable
Typical dose
100 to 300 mcg/day
Cycle
10 to 30 days
Onset
Builds gradually
Tolerance
Limited human data
Educational summary. See Sources & research below for the underlying studies.
What it is
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Follistatin-344 blocks myostatin, the protein that caps muscle growth, an advanced peptide.
• Best for: experienced users chasing extra muscle
• Caveat: expensive, with limited human data
• Run in short cycles, not continuously
How it works
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It releases a natural brake on muscle growth.
• Binds and inhibits myostatin
• Myostatin normally limits how big muscle gets
• Blocking it may allow more growth
Dosing and mixing
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Reference tiers only. Track the dose you are already taking.
Low
100 mcg/day, short cycle
FOR Cautious experienced users
BENEFIT Often picked as the lower-exposure tier in short-cycle discussions
Standard
100 to 300 mcg/day, 10 to 30 days
FOR The common short-cycle approach
BENEFIT The range most often cited in user discussions
High
300 mcg/day, full cycle
FOR Aggressive, advanced only
BENEFIT A higher-exposure tier with more limited safety data
Schedule: Short cycles of 10 to 30 days, not continuous.
Beginner ramp: Given the limited data, start conservative.
Mixing (reconstitution)
BAC water is bacteriostatic water, the sterile water you mix in.
A 1 mg vial with 1 mL BAC water is a common starting point.
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Ranges are reference only, not a recommendation. See Sources & research below.
How to take it
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Inject under the skin once a day during a short cycle.
• Cycle it, do not run it long-term
• Rotate the spot to avoid irritation
• Refrigerate the mixed vial between doses
What to expect
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Week 1
Little to feel early on.
Weeks 2 to 4
Possible strength and fullness gains.
End of cycle
Stop and assess, this is not a long-term peptide.
Keep in mind
Human data is thin, treat claims with caution.
Side effects
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Commonly reported
• Limited human data, tolerability not well established
See a clinician if
• Any unusual reaction
Storage
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Keep it cold, before and after mixing.
• Powder: refrigerate
• After mixing: fridge, use within about 4 weeks
• Do not freeze, keep out of light
Common stacks
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• Follistatin-344 + a GH peptide: an advanced pairing for people researching myostatin and GH pathways
Sources & research
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Myostatin research
Blocking myostatin increased muscle in animal models.
Human data
Very limited, so treat results cautiously.
Sources are provided for education and are not exhaustive. Where a source names a specific trial or journal it is shown above; always confirm with a licensed clinician.
Educational and research information only. Not medical advice. Always confirm dosing and safety with a licensed clinician.
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