ONYX PHARMA – SLOW MASTER 150, MAST E 150 (MASTERON ENANTHATE, DROSTANOLONE) 150mg x 10ml

DROSTANOLONE ENANTHATE is a synthetic derivative of dihydrotestosterone, producing an anabolic effect and promoting protein synthesis as well as creating positive nitrogen balance in humans. Since it is a derivative of dihydrotestosterone, drostanolone does not aromatize to estrogens. Drostanolone Enathate 150 have significant anabolic and androgenic properties promoting an increase in strength and growth of muscle tissue while acting as an estrogen antagonist.