Winstrex S75 10ml vial, 75mg/ml (Swiss Pharm). This compound is a derivative of dihydrotestosterone, although its activity is much milder than this androgen in nature. It is technically classified as an anabolic steroid, shown to exhibit a slightly greater tendency for muscle growth than androgenic activity in early studies. While dihydrotestosterone really only provides androgenic side effects when administered, Winstrex S75 instead provides quality muscle growth. The anabolic properties of this substance are still mild in comparison to many stronger compounds, but it is still a ggod, reliable builder of muscle. Its anabolic properties could even be comparable to Dianabol, but Winstrex S75 does not have the same tendency for water retention.