Testosterone Propionate 10ml/250mg Test Propionate – Prime
Prime Testosterone Propionate 10 ml/250 mg – a high‑purity, short‑acting ester for rapid muscle growth and strength gains.
Key features:
- 250 mg pure testosterone per vial
- Rapid action (2–4 days half‑life)
- Low aromatization risk
- Versatile for bulking, cutting, PCT or starter use
Testosterone Propionate 10ml/250mg – Prime
Prime Laboratories delivers a high‑purity Testosterone Propionate (Test P) solution in a 10 mL vial containing 250 mg of the esterified hormone.
The formulation is intended for intramuscular injection and is favored by athletes seeking rapid gains in lean mass, strength, and recovery.
Key Features
- Short half‑life (~4–5 hours) – allows frequent dosing with minimal accumulation.
- High anabolic potency: boosts muscle protein synthesis, enhances bone density, and supports cardiovascular function.
- Lower aromatization risk compared to longer‑acting esters; still advisable to pair with an aromatase inhibitor if estrogenic side effects appear.
- Cost‑effective option for both novice users and experienced bodybuilders.
Administration Guidelines
| Phase | Dosage (mg) | Frequency |
|---|---|---|
| Beginner / Solo Cycle | 50–100 | Every 48 hours |
| Intermediate / Combination Cycle | 100–150 | Every 48 hours |
| Advanced / Post‑Cycle Support | 200 | Every 48 hours for 2 weeks |
- Injection Site: Deltoid, gluteal or thigh muscle.
- Technique: Use a sterile needle (25–27 G) and ensure proper aseptic handling to prevent infection.
- Storage: Keep refrigerated at 2–8 °C; avoid freezing.
Potential Side Effects
- Estrogenic reactions: gynecomastia, water retention, mild edema.
- Androgenic effects: acne, oily skin, hair loss (in genetically predisposed individuals).
- Cardiovascular impact: transient increase in LDL cholesterol; monitor lipid profile.
- Injection site pain or irritation if technique is improper.
Safety and Precautions
- Only men are recommended to use Testosterone Propionate due to hormonal specificity.
- Contraindicated for individuals with prostate or breast cancer, uncontrolled hypertension, or hepatic disease.
- Regular monitoring of hormone levels and blood work is advised during prolonged use.
Common Combination Partners
- Nandrolone Phenylpropionate (NPP)
- Trenbolone Acetate (TBA)
- Oxandrolone (Anavar)
- Drostanolone (Masteron)
- Stanozolol (Winstrol)
PoseidonRX provides this product for customers seeking a reliable, short‑acting testosterone option.


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