Follistatin-344
Recombinant Follistatin (344 amino acid isoform). Peptide, myostatin inhibitor.
This page describes what Follistatin-344 is and its known risks. It is not medical advice and not a guide to using it. Many of these substances are prescription-only or illegal to use without a prescription. Speak to a doctor.
- Class
- Peptide
- Legal status
- Research chemical (not approved for human use)
- Half-life
- Short (hours)
- Liver strain
- Unknown
- Kidney strain
- Unknown
- Converts to estrogen
- None
- Suppresses natural hormones
- Not typically
Medical uses
- None (research only)
What it does in the body
Anabolic
- myostatin (GDF-8) inhibition
- Theoretical significant muscle growth (based on animal models)
Forms, half-life and detection
| Form | Half-life | Reported detection window |
|---|---|---|
| Injectable (Subcutaneous or Intramuscular) | Short (hours) | Unknown |
Side effects and health risks
Other
- Essentially unknown in humans — almost no controlled human safety data exists
- Theoretical concerns about uncontrolled tissue growth given myostatin's broader regulatory roles
Related compounds
- BPC-157
- TB-500 (Thymosin Beta-4)
- Melanotan II (MT-II)
- Ipamorelin
- CJC-1295 (with or without DAC)
- PEG-MGF (Pegylated Mechano Growth Factor)
- GHK-Cu (Copper Peptide)
- Thymosin Alpha-1
Questions
What is the half-life of Follistatin-344?
About Short (hours). Half-life is the time for the level in the blood to fall by half.
How long is Follistatin-344 detectable?
Testing windows of Unknown are reported, depending on the test and the person.
Is Follistatin-344 legal?
Research chemical (not approved for human use). Laws differ by country and change; check the rules where you live.
What blood tests matter with Follistatin-344?
Ask a doctor which tests suit you.
What are the side effects of Follistatin-344?
Other: essentially unknown in humans — almost no controlled human safety data exists and theoretical concerns about uncontrolled tissue growth given myostatin's broader regulatory roles.
For information only, not medical advice. MyoStats is a tracking tool used at your own discretion. Speak to a doctor before changing your training, diet, medication or anything you take.