Sustanon is a mixture of four different testosterones that, due to a well-constituted composition, has a surprising synergistic effect that allows great gains in muscle mass. This has two positive characteristics for the athlete:
Due to the special combination effect of the compounds, Sustanon milligram for milligram, has a better effect than Testosterone Enanthate, Cypionate, and Propionate alone.
Second, the effect of the four testosterones is released slowly over time, so Sustanon enters the athlete's system quickly and is effective for several weeks. Due to the propionate included in the steroid, Sustanon is effective from day one, and due to the decanoate included in the compound, it remains active for 3 – 4 weeks.
With this compound there is a rapid increase in strength and body weight. Athletes using Sustanon report solid muscle growth because this compound produces less water retention and also aromatizes less than other esters such as Testosterone Enanthate or Cypionate.