Mastron

Drostanolone Propionate is probably one of the most interesting steroids used by athletes.Mastron is a derivative of dihydrotestosterone or DHT which restrains the conversion to estrogen through aromatization. It could be that its ability to inhibit estrogen from interacting with the aromatase enzyme or it blocks the receptor that binds the estrogen that causes this phenomena.

Whatever the reason, because of its anti-estrogenic properties it blocks the conversion of free testosterones to estrogen through aromatization and promotes hardness of muscles.

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