Should allow consistently increase the amount of mechanical stretching applied to the muscles, forcing them to new growth. Myostatin and spartagen xt muscle growth This process of proliferation of satellite cells is inhibited by a substance called myostatin, and the supplement industry has acted very quickly to create supplements called "myostatin blockers"; feedback from users of these substances has not yet been very encouraging, most likely because the inhibition of myostatin alone is not a guaranteed path to growth. Studies indicate that myostatin plays different roles during different stages of development and is produced in a connected or inactive form. It is only the presence or absence of other hormones /

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