Unlike other testosterone compounds such as testosterone cypionate and testosterone enanthate, the use of Sustanon leads to less water retention and estrogenic side effects.

As with all testosterones the rate of side-effects is quite high. Risks of androgenic side-effects (hair loss, prostate hypertrophy, deepening of voice) as well as estrogenic side-effects (gyno, water retention, fat gain) are real, and the use of ancillary drugs such as anti-estrogens will most likely be needed.

Testosterone is not in any way toxic, and should not give a user any problems apart from a high rate of occurrence of standard steroid side-effects. Testosterone is probably the safest steroid around, but it can´t be taken lightly, and Sustanon is no different.

Liver damage is unlikely with Sustanon however, in very high dosages, elevated liver values can occur which, after discontinuing use of the compound, usually go back to normal.