Description
Product Overview
Sustanon 250 mg/ml by Alpha BioPharma is a unique testosterone blend containing four different esters designed to provide both fast-acting and long-lasting testosterone release. This formulation ensures a rapid rise in testosterone levels after injection, followed by a sustained release over several weeks.
Favored for both testosterone replacement therapy (TRT) and performance cycles, Sustanon 250 combines convenience with steady hormone support, strength gains, and muscle growth. Its multi-ester design reduces injection frequency compared to short esters, while still offering a quicker onset than very long esters.
Composition
Each 1 ml injectable solution contains:
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Testosterone Blend (Sustanon) – 250 mg
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Testosterone Propionate
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Testosterone Phenylpropionate
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Testosterone Isocaproate
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Testosterone Decanoate
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Benzyl Alcohol (BA) – 2.0% (preservative)
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Benzyl Benzoate (BB) – 23.0% (solvent/stabilizer)
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MCT Oil – q.s. to 1 ml (carrier oil)
Formulated with pharma-grade MCT oil to ensure smooth injections and consistent absorption.
Pharmacological Profile
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Class: Anabolic-Androgenic Steroid (AAS)
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Ester Mix: Propionate, Phenylpropionate, Isocaproate, Decanoate
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Half-life: Mixed profile → rapid onset (24–48h) with long-lasting release (up to 2–3 weeks)
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Anabolic Effects: Protein synthesis, muscle growth, increased bone density
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Androgenic Effects: Development of male sexual characteristics (voice deepening, body hair growth)
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Erythropoietic Effect: Stimulates red blood cell production → improves oxygen transport and endurance
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Aromatization: Yes (may convert to estrogen → risk of gynecomastia, water retention)
Benefits & Effects
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Multi-Ester Stability: Delivers both fast and long-lasting testosterone release
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Steady Hormone Levels: Less fluctuation compared to single-ester formulations
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Strength & Mass Gains: Powerful anabolic effects for bulking and TRT
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Endurance & Energy: Boosts red blood cell count for training intensity
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Convenience: Reduced injection frequency compared to Propionate alone
Recommended Dosage & Use
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TRT (Hypogonadism): 50–250 mg every 2–4 weeks (individualized to bloodwork)
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Gender-Affirming Therapy: 50–100 mg weekly OR 100–250 mg every 2 weeks
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Bodybuilding (Performance): 250–500 mg weekly (common)
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Advanced Cycles: 500–750 mg weekly for mass-building (higher side effect risk)
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Injection Frequency: Every 1–2 weeks
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Cycle Length: 8–12 weeks for bodybuilding; long-term for TRT
💡 Sustanon 250 is often stacked with Deca-Durabolin, Dianabol, or Trenbolone for bulking, and with Masteron or Winstrol for cutting phases.
Possible Side Effects
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Injection site pain/swelling
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Increased libido
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Gynecomastia (due to aromatization)
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Acne, oily skin, hair loss in predisposed users
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Fluid retention → risk of high blood pressure
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Suppression of natural testosterone production
Contraindications
Do not use if you have:
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Prostate or breast cancer (androgen-sensitive)
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Severe cardiac, liver, or kidney disease
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Untreated sleep apnea
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Pregnancy (risk of virilization of female fetus)
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Allergy to testosterone or carrier oils (e.g., MCT oil)
Storage Guidelines
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Store below 25°C (77°F) (room temperature)
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Protect from light (keep in original packaging)
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Do not freeze
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Shelf life: 24–36 months unopened
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Discard if discoloration or particulate matter appears
Why Choose Alpha BioPharma Sustanon 250?
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Pharma-grade raw testosterone esters
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Premium MCT oil carrier for smooth injections
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Unique 4-ester blend for immediate and sustained release
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Rigorous sterility and potency testing for every batch
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Trusted worldwide for TRT and bodybuilding performance



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