It is is the "Cleanest and Gentles" anabolic steroid, will not aromatize, non-toxic, low in androgens. Primobol may be taken by both Men and Women. Dosages for men are 100-300 mg/week, Women 1/2 dosage. Primobol is the only steroid that works well on a low calorie diet. Effective for bulking, but tends to harden and add muscle tone more that build big muscles. Primobol works great when added to a cycle (stacked) with other steroids, it tends to lessen water retention and harshness when stacked with more heavy duty testosterone injectables, like Omnadren / Sustanon, Cypoinate / Propionate, ect. It is an analog immune-stimulating steroid used by people with Aids and others with depressed immune systems to build up the immune system and add lean muscle mass.