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Limited human dataNot FDA approved

Follistatin 344 dosage

Also known as: Follistatin · FS344 · FST-344 · FS-344 · Follistatin-344

Updated 24 sources

Every Follistatin 344 protocol on file, 12 in all, labelled by where each number came from.

Calculate with Follistatin 344Follistatin 344 overview

Follistatin 344 dosage by goal

Grouped by goal. Each protocol shows the amount, how often, cycle and rest as the source states them, with every titration step.

Injected12

Standard (guide)

Amount
100 to 200 mcg
How often
Once daily, post-workout preferred
Route
SubQ, vial (powder)
Cycle
20 to 30 days
Rest
3 to 4 weeks off

Conservative (guide)

Amount
100 mcg
How often
Once daily
Route
SubQ, vial (powder)
Cycle
10 to 20 days
Rest
3 to 4 weeks off

Advanced (guide)

Amount
200 to 300 mcg
How often
Once daily
Route
SubQ, vial (powder)
Cycle
10 to 20 days
Rest
4 weeks off

Note: The highest daily dose any guide lists. Another guide warns against going above 200 mcg a day.

By body weight (guide)

Amount
1 to 2.5 mcg/kg
How often
Once daily
Route
SubQ, vial (powder)

Note: The guide's own table runs from 1.0 mcg/kg (conservative) to 2.5 mcg/kg (upper range) and says most people just use a flat 100 mcg.

Beginner (guide)

Amount
50 mcg
How often
Once daily
Route
SubQ, vial (powder)
Cycle
4 weeks, then assess strength and size

Standard with training (guide)

Amount
75 to 100 mcg
How often
Once daily
Route
SubQ, vial (powder)
Cycle
6 weeks
Rest
4-week washout

Note: Paired with progressive resistance training. The guide's advanced tier is 100 mcg daily for 6 weeks, some running it twice daily while cutting.

Every other day (guide)

Amount
100 mcg
How often
Every other day, in the morning
Route
SubQ, vial (powder)

Note: The guide says a 1 mg vial lasts about 10 doses, around 18 days.

One vial, short cycle

Amount
100 mcg
How often
Once daily
Route
SubQ, vial (powder)
Cycle
10 to 20 days, one 1 mg vial
Rest
Several months off

Who: Most popular community protocol, aggregated from forum and Reddit reports

First-timer

Amount
50 to 100 mcg
How often
Once daily
Route
SubQ, vial (powder)
Cycle
10 to 14 days, a single short cycle

Who: Community protocol aggregated from forum and Reddit reports

Extended

Amount
100 to 200 mcg
How often
Once daily
Route
SubQ, vial (powder)
Cycle
Up to 30 days

Who: Community protocol aggregated from forum and Reddit reports

Note: Some users report no extra benefit above 100 mcg.

Twice a week

Amount
500 mcg
How often
Twice weekly
Route
SubQ, vial (powder)
Cycle
4 to 5 weeks, one 1 mg vial

Who: Community protocol aggregated from forum and Reddit reports

Note: A niche plan. Single shots this large sit between the usual 100 mcg and the whole-vial 1 mg injections linked to retinal fluid in an eye-clinic case series.

Pre-workout into the muscle

Amount
50 mcg
How often
Training days only
Route
IM, vial (powder)
Cycle
8 weeks on
Rest
8 weeks off

Who: Community protocol as described by a competitor guide

Timing: 30 minutes before lifting, into the deltoid, outer thigh or upper glute.

Note: The same guide lists 100 mcg as an advanced dose.

Doses shown are what sources report, labelled by origin. Not medical advice.

Follistatin 344 dosage chart by vial size

Units to draw for the doses sources cite most, at every vial size and water volume.
Follistatin 344: concentration and U-100 syringe units for each vial size and water volume
WaterStrength50 mcgdose, units100 mcgdose, units200 mcgdose, units
1 mg vial
0.5 mLCompetitor guide2 mg/mL2.50.025 mL50.05 mL100.1 mL
1 mLCompetitor guide1 mg/mL50.05 mL100.1 mL200.2 mL
2 mLCompetitor guide0.5 mg/mL100.1 mL200.2 mL400.4 mL
3 mLCompetitor guide0.333 mg/mL150.15 mL300.3 mL600.6 mL
Units are on a U-100 insulin syringe (100 units = 1 mL). U-50 and U-30 barrels read the same units.Water volumes from

Doses shown are what sources report, labelled by origin. Not medical advice.

Calculate with this peptideYour vial, your water, your dose: Follistatin 344 in syringe units, with the math shown.

Mixing Follistatin 344

Diluent: Bacteriostatic water

Water volumes sources use: 0.5 mL, 1 mL, 2 mL, 3 mL

It is a whole protein, so swirl gently and never shake; it can take 2 to 5 minutes to dissolve. Discard it if cloudy. At 1 mL in a 1 mg vial, 100 mcg is 10 units on a U-100 syringe.

Follistatin 344 dosage questions

How much follistatin 344 per day?

Most guides and community reports land at 50 to 200 mcg once a day, with 100 mcg as the default. PeptIQ app users most often log 50 to 100 mcg per shot, with reports up to 200 mcg. One guide warns against going above 200 mcg a day.

How long is a follistatin cycle?

Short. The common pattern is 10 to 30 days on with 3 to 4 weeks off, and many people run a single 1 mg vial over 10 to 20 days and then stop for months. Other guides run 4 to 6 weeks with a 4-week washout, or 8 weeks on and 8 off on training days only.

How much water goes in a 1 mg vial?

Guides use 0.5, 1, 2 or 3 mL of bacteriostatic water. At 1 mL, 100 mcg is 10 units on a U-100 syringe; at 2 mL it is 20 units. Use the calculator for your own numbers.

Sources for these doses

7 sources, each checked by date. Record updated Oct 24, 2026. Numbers are restated in our own words and labelled by where they came from.

Competitor guide4

  1. Follistatin 344 dosage guidePeptidesExplorer · checked Oct 24, 2026
  2. Follistatin dosing protocolsPeptide Protocol Wiki · checked Oct 24, 2026
  3. Follistatin-344 dosage guideBodyHackGuide · checked Oct 24, 2026
  4. Follistatin 344 protocolPathToPeptides · checked Oct 24, 2026

Community-reported2

  1. Follistatin community protocolsPeptide Protocol Wiki, via a competitor guide · checked Oct 24, 2026
  2. Follistatin-344 dosing guideThe Peptide Catalog, via a competitor guide · checked Oct 24, 2026

Back to the full Follistatin 344 page for side effects, storage, stacks and legal status.