Although Oxandrolone itself does not cause a noticeable muscle growth it can clearly improve the muscle-developing effect of many ste-roids. Deca-Durabolin, Dianabol, and the various testosterone compounds, in particular, combine well with Oxandrolone to achieve a "mass buildup" because the strength gain caused by the intake of these highly tissue-developing and liquid-retaining sub-stances results in an additional muscle mass. A stack of 200 mg Deca-Durabolin/week, 500 mg Testosterone enanthate (e.g. Testoviron Depot 250)/week, and 25 mg Oxandrolone/day leads to a good gain in strength and mass in most athletes. Deca-Durabolin has a distinct anabolic effect and stimulates the syn-thesis of protein; Oxandrolone improves the strength by a higher phosphocreatine synthesis; and Testosterone enanthate increases the aggressiveness for the workout and accelerates regeneration.