Description
Overview
Same androgen-receptor mechanism as testosterone; the cypionate ester slows release from the injection depot.
Composition / Profile
- Active compound: Testosterone Cypionate
- Drug class: Injectable androgen / anabolic steroid (long ester)
- Pack / dose (this listing): 10ml / 250mg
Format
- Oil-based (or aqueous, where noted) solution for intramuscular injection
- Pack / dose: 10ml / 250mg
Dosage & Usage Patterns
- Bodybuilding (commonly cited): Commonly cited cycle base: ~300–500 mg/week (some cycles 500–750 mg/week); typically injected 1–2× weekly given the ~5–6 day half-life.
- Clinical / general reference: TRT ~100-200 mg/week; reported performance use is higher and individual.
- Half-life: ~5-6 days.
- Protocols vary by individual, compound stack, and bloodwork — figures above reflect community-reported patterns, not medical recommendations.
Effects
Reported benefits (commonly cited)
- Increased muscle protein synthesis and nitrogen retention.
- Strength and lean-mass gains.
- Improved recovery.
- Elevated libido.
- Serves as the foundation compound in most injectable cycles.
Reported side effects
- Acne.
- Water retention.
- Gynecomastia.
- Testicular atrophy.
- Raised hematocrit.
- Lipid/BP changes.
Key Interactions
- Aromatizes to estradiol.
- Raises hematocrit.
- Affects lipids.
Post-Cycle Considerations
- Long ester means suppression persists for weeks.
- Recovery protocols are timed accordingly by clinicians.
Precautions
- Cardiovascular/prostate history relevant.
- Injection technique/sterility matters for oil-based IM use.
Common Misconception
Myth: cypionate is ‘stronger’ than enanthate.
Evidence: near-identical compound; the tiny molecular-weight difference is negligible.
Related Categories
- Browse more in Injectable Steroids → Testosterone → Testosterone Cypionate.
- 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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