Winstrol is generally not preferred for building mass as it is highly anabolic and very slightly androgenic, an oral Steroid such as Dianabol is usually a better choice for people wanting to bulk up. Due to its ability to dramatically lower SHBG it can be used in a bulking cycle as a means to make other hormones more efficient, increase free testosterone and even solidify gains to a stronger degree but most of the people will find other steroids to be far more beneficial than winstrol in the long run. However some people are very sensitive to side effects of certain Steroids such as Dianabol, and would rather use Winstrol in a bulking cycle, while the weight gain wont be as dramatic as with Dianabol, with a proper high calorie diet, you can still see good results.
Although both categories of drugs are banned, their performance-enhancing benefits are controversial. Glucocorticoids have been known since the 1930s to improve muscle endurance, which is why they are banned. They are also used for recovery, enabling athletes to sustain greater volume and intensity of training. As for beta2 agonists, an analysis of 26 studies found no significant benefits to athletes but competitors still use them extensively (hence the large number of positive tests). The oral and injected forms of both are also thought to help build muscle mass, similar to anabolics, and are banned in and out of competition. The (more common) inhaled forms, however, are permitted for many athletes who have demonstrated a need for them and have received a therapeutic use exemption (TUE). Confused yet?
It shall be noticed, that in men, approximately 5% of testosterone undergoes 5α-reduction to form the more potent androgen, dihydrotestosterone (DHT), also known as androstanolone. From another side approximately % of testosterone is converted into estradiol (the primary female sex hormone) by aromatase an enzyme expressed in the brain, liver, and adipose tissues. Hence, don`t forget to take precautions to avoid respective side effects. Thereof we recommend to perform blood works and take aromatase inhibitors on cycle (if required, anastrozole preferably) and SERMs (clomifene, toremifene) during post cycle therapy (PCT).