Drostanolone propionate (Masteron) is an injectable anabolic/androgenic steroid. It is highly androgenic and mildly anabolic.
Drostanolone does not aromatize into estrogen and has similar properties to dihydrotestosterone (DHT). Drostanolone was originally developed to be used as an anti-estrogenic compound for treating female breast cancer.
Drostanolone is irreversibly metabolized by the enzyme 3a-hydroxysteroid-dehydrogenase into an inactive form of 2-methyl-5-androstan-3-ol-17-one and promotes hardness, lean mass and muscle preservation during diet and cutting cycles.
Masteron brings a high quality look to the muscle and should never be left out of your stack. Masteron is almost identical in composition to Primobolan, but unlike Primobolan (which is useless to anyone other than women) Masteron actually works, and works very well.