What Sustanon 250 is and what it is used for: Durateston 250 é uma solução injetável límpida, amarela pálida, contendo o ingrediente ativo testosterona em 4 (250 mg/ml) formulários separados. The active substances of Sustanon 250 (see section 6 “What Sustanon 250 contains”) are turned into testosterone by your body. Testosterone is a natural male hormone known as an …