Sustanon 250 is a blended testosterone product containing four esters in a single ampule: Testosterone Propionate (30mg), Phenylpropionate (60mg), Isocaproate (60mg), and Decanoate (100mg). The mix was originally formulated for hormone replacement therapy to deliver fast onset from the short esters paired with sustained release from the longer ones over roughly 21 days.



For cycle use, a single weekly injection holds steady serum testosterone levels in most users. Some prefer to split into two injections per week to flatten the peak-trough curve further, especially when running higher doses. Typical cycle dosing runs 250 to 750mg per week. The compound behaves like any testosterone ester at the receptor: significant aromatization, strong mass and strength gains, full HPTA suppression.



Estrogen management with an aromatase inhibitor is recommended for most cycles, and post-cycle therapy is essential. Sustanon is one of the most common cycle bases worldwide and a frequent first-cycle choice because of its single-injection convenience.



Strength: 4/6

Muscle Gain: 6/6

Fat/Water Loss: 4/6

Keep Gains: 3/6

Side Effects: 1/6