# Follistatin 344: track every shot, units to draw

> Reconstitution calculator, in cycles schedule, site rotation for Follistatin 344. Track it in Peppy, private on your iPhone.

Source: https://peppytracker.com/compounds/follistatin-344/
Last updated: 2026-09-02

Splice variant of follistatin (344 amino acids) that binds and neutralizes myostatin and activin; researched for muscle hypertrophy and muscular dystrophy applications. In the Peppy catalog, Follistatin 344 is reconstituted from a vial and drawn up in units on an insulin syringe, dosed in mcg, typically in cycles.

## Frequently asked

### How many units is 100 mcg of Follistatin 344?

It depends on how the vial was mixed. Example: a 2 mg vial plus 2 mL of bacteriostatic water is 1 mg/mL, so 100 mcg is 0.1 mL, or **10 units** on a U-100 insulin syringe. Change the water and the units change. Use the calculator above with your own vial, and verify with your prescriber.

### Can I track Follistatin 344 in Peppy?

Yes. Follistatin 344 is one of 123 compounds built into Peppy, with its form, unit and typical frequency prefilled. Add it as a protocol, set your schedule, and Peppy handles the countdown, the log and the reminders (Pro).

### Where should I inject Follistatin 344?

Follow your prescriber's instructions. For subcutaneous shots the GLP-1 labels list the abdomen, thigh and upper arm and say to rotate. Peppy's body map has 13 sites, suggests the next one, and shows when each was last used. Read the [site rotation guide](https://peppytracker.com/guides/injection-site-rotation/).

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Peppy is a tracking tool, not medical advice. Dose calculations are mathematical conversions only. Always follow your prescriber's instructions and verify every draw-up yourself.

Peppy is a free iPhone app (Pro subscription optional). App Store: https://apps.apple.com/us/app/peptide-tracker-peppy/id6775005514