Follistatin FST-344

Myostatin inhibitor polypeptide
Each box contains 1 vial & Bacteriostatic water;
Active Substances
Myostatin inhibitor polypeptide
Route of administration
Recommended for subcutaneous injection;
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Structural characteristics:

Follistatin is also known as an active binding protein that is encoded in the human FST gene. Follistatin is a code of 344 amino acids with 29 amino acid sequence sequences. It is an autocrine glycoprotein that is expressed in almost all tissues of the upper class of animals. Its main function is the binding and bio-neutralization of members of the gf-β superfamily, a particular focus on activated paracrine hormone.


Follistatin works by binding to the myostatin, its suppression and binding to the activin receptor. At the low level of follistatin the body, the action of the Myostatin protein is increased. This hinders and leads to sluggish growth. The myostatin protein is found in muscle cells and has the function of maintaining volume and regulating the amount and size of muscle mass within given limits. Studies have shown that the less the amount of myostatin in the body, the greater the muscle growth can be.


Follistatin significantly increases the growth of muscle mass and increases strength by blocking myostatin activity. Increases hyperplasia (growth of new cells) as well as hypertrophy (increased cell counts). It has powerful anabolic activity without an androgenic concomitant. It has a strong ability to maintain the shape and maintain muscle mass even when the individual has limited training. It strengthens fat burning and significantly slows down aging.

Dose and administration:

Follistatin represents a fine white powder in a vial to be mixed with bacteriostatic water The powder should be stored in dry and cool places without direct sunlight. The solution should be used with subcutaneous injection into the body fat using a very small insulin needle. Follistatin also has a local effect by increasing the amount of muscle in which it is injected.
Once combined in the solution, the serum should be stored in a refrigerator (between 2 and 8 ° C / 36 ° F and 46 ° F) because the amino acid chain is likely to disintegrate and this may affect its effectiveness.
The recommended and most common daily dose is 50 to 100 μg daily intramuscularly for 10 days after which the injection site is not changed.

Side Effects:

The most common side effects with follistatin are skin reactions at the injection site such as pain, redness and swelling. Clinical studies on live animals have been shown to have no side effects. Long use of the peptide is not desirable as it suppresses the secretion of FSH from the pituitary gland. This can drastically reduce sexual desire. Woman-driven is not desirable because the peptide can cause polycystic ovarian syndrome.


If overdose of Follistatin is suspected, contact your Doctor immediately.