Sustanon is a powerful steroid made up of five different esters of testosterone combined into the one solution. Sus is a form of testosterone replacement therapy (TRT), it is designed to provide a sustained release of testosterone into the bloodstream over an extended period. This allows you to reap the benefits of the way each ester is consumed by the body with a mix of both fast acting and longer lasting esters all being administered in the one dosage. Sus is an injectable and is oil based.

Sustanon Mixture of the 5 testosterone esters:
Testosterone acetate
Testosterone propionate
Testosterone phenylpropionate
Testosterone cypionate
Testosterone decanoate

These esters make Sustanon one of the longest-lasting steroid compounds available today. It is an ideal compound for putting on size and increasing muscle strength. The propionate and phenylpropionate esters in this product are quickly utilized, releasing into circulation within the first four days. The remaining esters are much slower to release, staying active in the body for about two and three weeks.

As with all testosterone products, Sustanon is a strong anabolic with pronounced androgenic activity. It is mainly used as a bulking drug, providing good gains in strength and muscle mass. Although it does convert to estrogen, as is the nature of testosterone, this injectable is noted as being slightly more tolerable than cypionate or enanthate.

With Sustanon, blood levels of testosterone are building more slowly, so side effects do not set in as fast. For equal blood hormone levels however, testosterone will break down equally without regard to ester. Also correlating with estrogen, water retention would be noticeable with Sustanon, unless steps were taken to minimize estrogen.
Many individuals like to use a combination of Nolvadex & Proviron, while others use an anti-aromatase like Arimidex, Femara, or Aromasin, to help control estrogen related side effects.

For individuals with hypogonadism or low testosterone levels, Sustanon can help alleviate symptoms such as fatigue, low libido, mood swings. It may lead to improved overall well-being and quality of life.