Description
Overview
Exogenous testosterone binds androgen receptors driving muscle protein synthesis and nitrogen retention; suppresses the HPTA (hypothalamic-pituitary-testicular axis) reducing endogenous production.
Composition / Profile
- Active compound: Testosterone Blend (Sustanon-type)
- Drug class: Injectable androgen / anabolic steroid (mixed esters)
- Pack / dose (this listing): 10ml / 300mg
Format
- Oil-based (or aqueous, where noted) solution for intramuscular injection
- Pack / dose: 10ml / 300mg
Dosage & Usage Patterns
- Bodybuilding (commonly cited): Commonly cited cycle base: ~250–750 mg/week total testosterone, split 1–2× weekly to balance the mixed ester release profile; higher totals appear in advanced cycles but raise estrogenic and hematocrit load.
- Clinical / general reference: Medical TRT is ~100-200 mg/week. Community-reported performance use is commonly higher; specific dosing is individual and a matter for a clinician.
- Half-life: Blend of short-to-long esters (propionate through decanoate); overall release spans ~2-3 weeks with an early peak.
- Protocols vary by individual, compound stack, and bloodwork — figures above reflect community-reported patterns, not medical recommendations.
Effects
Reported benefits (commonly cited)
- Increased lean mass and strength.
- Improved recovery and training volume tolerance.
- Elevated libido and nitrogen retention.
- Blend provides both a faster initial rise (short esters) and extended tail (long esters).
Reported side effects
- Acne.
- Oily skin.
- Water retention.
- Gynecomastia via aromatization.
- Testicular atrophy.
- Suppressed fertility.
- Elevated hematocrit.
- Altered lipids/blood pressure.
Key Interactions
- Aromatizes to estradiol (AI use common).
- Raises hematocrit (caution with anything raising clotting risk).
- Affects lipids.
Post-Cycle Considerations
- Suppresses natural testosterone and fertility.
- Recovery protocols are timed to ester clearance under a clinician.
Precautions
- Not for use in pregnancy.
- Cardiovascular, prostate and mental-health history are relevant considerations for a clinician.
Common Misconception
Myth: blends ‘release evenly.’
Evidence: the short esters spike first, so blood levels are not flat despite marketing claims of steady levels.
Related Categories
- Browse more in Injectable Steroids → Testosterone → Testosterone Blend (Sustanon).
- Related: Post Cycle Therapy (PCT), Anastrozole, Tamoxifen.
Storage
- Store away from direct light and extreme temperature
- Oil-based solutions can be drawn more easily when warmed slightly before injection






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