It is commonly used for muscle building. This injectable form has been found to be somewhat more tolerable than cypionate or enanthate. Although Sustanon remains active in the body for about three weeks, injections are given at least every 10 days.

Sustanon 250 is probably the most sought after of the injectable testosterones. However, it should be emphasized that this is not due to an unusual potency of this combination of testosterone esters; the effect of the four testosterones is released gradually over time.

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