Performance
Anecdotal
Research chemical

Follistatin 344

Also known as FST-344 · FS344

New

Reconstitution & dosing guide

1 mg vial — research phases, recon steps, and a live unit calculator.

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Available sizes & price

Catalog only

1mg x 10 vials

FST 344 · Not in current stock

$85 / vial

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Prices per vial · Research use only · Not medical advice.

Myostatin-pathway related protein/peptide product marketed for extreme muscle growth; high risk, poor quality control.

How to picture it

Myostatin is a brake pedal on muscle growth. Follistatin-style binding holds that brake (and related inhibitors) so anabolic pathways face less resistance. Picture cutting the speed limiter on muscle-building programs — one of the clearest "remove the governor" ideas in growth-factor research, and high-caution biology because natural limits exist for a reason.

Research focus & benefits

  • Myostatin-pathway inhibition research
  • Hypertrophy and muscle-limit biology studies
  • Growth-factor brake-release model literature

Benefits describe research interest and pathway rationale — not guaranteed outcomes or medical advice. Research use only.

Overview

Follistatin binds activins and myostatin, removing brakes on muscle growth in animal gene-therapy models. Injectable Follistatin 344 research products are controversial, often poorly characterized, and far from the gene-therapy data that sparked interest. Extreme caution.

Mechanism

Neutralizes myostatin/activin signaling → potential muscle hyperplasia/hypertrophy in models.

Research uses

  • Myostatin inhibition research
  • Muscle-wasting disease gene therapy research

Research dosing notes

No safe consumer protocol. Gene therapy literature is not the same as a research vial on a bodybuilding forum.

Open full reconstitution & dosing guide →

Half-life / kinetics

Product-dependent; often unclear in research vials

Common research routes

Intramuscular injection
Subcutaneous injection

Reported considerations

  • Unknown purity risks
  • Potential unintended growth tissue effects
  • Immune reactions
  • Theoretical cancer and organ concerns

Contraindications / cautions

  • Essentially everyone outside controlled trials
  • Cancer history
  • Pregnancy

Common research stacks

  • Not recommended for amateur stacking

Legal / access note

Unapproved; quality of gray-market products is a major concern.