Sustanbolin 250 — Blend of Testosterone Esters
Form: Injectable | Dosage: 250mg/ml × 10ml multidose vial or 250mg/ml × 1ml single dose ampoule
Pharmaceutical Information
- Chemical Name: Testosterone Propionate, Testosterone Phenylpropionate, Testosterone Isocaproate, Testosterone Decanoate (Mix of Testosterone).
- Dosage: 250mg/ml × 10ml multidose vial or 250mg/ml × 1ml single dose ampoule.
Packaging & Presentation
- 10ml multidose vial contains: – 30mg/ml Testosterone Propionate – 60mg/ml Testosterone Phenylpropionate – 60mg/ml Testosterone Isocaproate – 100mg/ml Testosterone Decanoate Sealed with a grey flip-off cap imprinted with Keifei®. Each vial comes with a QR Authentication Code. Packed in white and grey outer box × 10 vials.
- 1ml single dose ampoule contains the same mixture as above. Imprinted with 3 rings (Red, Green, Red) and a red dot below. Packed in 10 ampoules (5 × 2) inside a plastic tray with Keifei® imprint. Outer box contains 100 ampoules (10 inner boxes × 10 ampoules). Each inner box includes a QR Authentication Code.
Overview
Sustanbolin 250 is a blend of four testosterone esters. It is designed to provide both rapid and extended release of testosterone. The short esters (Propionate and Phenylpropionate) release quickly within the first 4 days, while the longer esters (Isocaproate and Decanoate) release more slowly, remaining active for 2–3 weeks.
Sustanbolin 250 is a strong anabolic with pronounced androgenic activity, commonly used in bulking cycles to increase strength and muscle mass. Like all testosterone derivatives, it does convert to estrogen, but is often more tolerable compared to cypionate and enanthate.
Possible Side Effects
- Oily skin and acne
- Aggressiveness or mood changes
- Facial and body hair growth
- Male pattern baldness










