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Follistatin 344 Peptide for Building Muscle Mass

Follistatin-344 (also known as activin-binding protein) is an autocrine glycoprotein that is produced in virtually all tissues of the body. Follistatin is encoded by the FST gene.

For the first time, follistatin was isolated from follicular fluid (hence the name), after which it was determined that it was able to inhibit the follicle-stimulating hormone in the anterior pituitary gland. It does this by binding to the protein activin, which in turn stimulates the secretion of follicle-stimulating hormone.

One of the uses of follistatin as a myostatin blocker is its low specificity of action, since it also inhibits the function of activins, which regulate the growth and differentiation of almost all cell types, including cells of the gonads, pituitary gland and skeletal muscle.

For this reason, scientists have developed a myostatin inhibitor FS I-I, a derivative of follistatin and specific to myostatin. Transgenic mice expressing this peptide had increased muscle mass and strength. These results indicate the therapeutic potential of FS I-I in muscular dystrophies and sarcopenia.

The latest trials, ending in 2009 in monkeys, showed that genetic regulation of follistatin levels produces measurable results in muscle growth and strength gain. These data pushed scientists towards clinical trials in humans, which, according to preliminary data, were supposed to begin in the summer of 2010.

Significance in bodybuilding
Experiments on animals have shown that the introduction of follistatin leads to an increase in muscle mass and muscle strength in healthy animals, and in dystrophic mice, muscle pathology undergoes a reverse development, even in the case of elderly individuals. Follistatin acts as a myostatin blocker.

Intramuscular injections of follistatin 344 lead to muscle growth and increased strength. In the bodybuilding field, Folliastatin 344 can be used to build quality muscle mass and burn fat. Follistatin 344 is actively used in medicine as a treatment for muscular dystrophy and muscle tissue degradation.


Sports doctors recommend taking Follistatin-344 according to the scheme: 100 mcg per day, subcutaneously, for 10-20 days. As a rule, it is used for gaining lean muscle mass or for drying (there is a rapid growth up to 4 kg in 10 days), and this peptide also significantly increases strength indicators. Follistatin-344 appears to be a promising powerlifting agent as it is not detectable during doping control. Redness at the injection site is possible.

Side effects
Follistatin has a direct effect on folliculogenesis, therefore, theoretically, complications are possible in women. According to the literature, Follistatin plays a role in the development of polycystic ovary disease.

Contrary to popular belief, follistatin does not cause myocardial hypertrophy.

In 2013, Follistatin-344 went online.

 Pharmacological group: peptide.

Release form: vials for for subcutaneous injections.


You can buy a set consisting of 5-20 vials of Follistatin, 5-20 insulin syringes, 5-20 ampoules with water for injections and 5-20 alcohol wipes. The cost of Follistatin Kit starts from € 490 including shipping and depends on the amount of product that you would like to buy. The possibility of delivery of such a set is not available for all countries, you can check the details by email.


Manufacturer: Nanox, China.

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