The reduction of estrogenic capacity of course made drostanolone ill-suited for use as a mass-builder. In fact the gains on it were quite limited. Someone seeking to gain muscle mass rarely, if ever, resorted to a DHT compound. But coupled to its extreme androgenic qualities it lead to the perfect compound to retain strength and mass while shedding body-fat. The absence of estrogen refrained it from increasing water or salt retention, and there is evidence that the androgenic component may expedite the fat loss process2. The exact mechanims by which a rise in androgens stimulates fat loss is not known, but it is theorized that it may be due to catecholamine-induced (epinephrine, norepinephrine and dopamine) lipolysis, caused by the androgen increasing the number of beta-adrenergic receptors (the primary triggers for fat mobilization) on the membrane surface of fat cells. It is my understanding however that the noted decrease in body-fat is mainly due to a slight increase in lean mass and a stagnation of the body-fat, automatically resulting in a loss of body-fat in percentages, after recalibration.
Masteron fat loss? Possibly. I'm still debating on whether I will run it for the full 6 weeks or not. I'm not prone to mpb, but I'm just scared of losing a full head of hair, plus, I have had acne problems all my life and I just started getting it under control with treatment and now I'm starting to break out on my back and shoulders again.