Track Follistatin 344 in Peptimes™
Follistatin is a human protein that binds activin; FDA's substance registry also calls it activin-binding protein (FST). "Follistatin 344" (FS344) is the name used for one form of it. (Source: FDA's substance registry (GSRS).)
Is Follistatin 344 FDA-approved?
No. Follistatin 344 isn't FDA-approved, and Drugs@FDA lists no application with follistatin as an active ingredient.
Follistatin 344
Also: FST344, FS344, follistatin, activin-binding protein
- Status label in the Peptimes Library
- Not FDA-Approved
- Routes in Peptimes
- Intramuscular
- Updated
- 1 Nov 2026
US regulatory status
How to track it in Peptimes
Add follistatin 344 in My Protocols and set the schedule you already follow: days of the week, times of day and a start date. Peptimes never suggests an amount when you log or schedule a dose. Its Library entry shows the status label “Not FDA-Approved”.
- Logging: the amount you took and how you feel.
- Injection sites: each dose records the site, and Insights shows where you’ve injected and how recently. It never suggests where to inject next.
- Reminders and history: reminders at your times, Dose History, the Calendar and CSV or JSON export work as described on the peptide tracker app page.
Peptimes is a tracking app, not medical advice. Talk to a licensed clinician about your treatment. Peptimes doesn’t sell follistatin 344 or any other compound.
More sources
- FDA, Global Substance Registration System, Follistatin, checked 1 Nov 2026: a protein, with the names activin-binding protein and FST.
- ClinicalTrials.gov, searched 1 Nov 2026: the registered studies are of follistatin gene therapies, which are different products, not of follistatin protein.