Description

Technical Parameters

Testosterone Undecanoate 250mg/ml Injectable Oil Product Introduction

Pharmaceutical -grade injection | Testosterone Undecanoate (Testosterone Undecanoate) - Ultra-long-acting testosterone supplement

Chemical name : 17β-undecanoyloxy-androst-4-en-3-one

CAS No .: 5949-44-0

Molecular formula : C₃₀H₄₈O₃

Molecular weight : 456.71

Concentration : 250mg/mL

Solvent : Castor oil + benzyl alcohol (2%)

Appearance : Transparent light yellow oily liquid

Testosterone Undecanoate Product Usage

Testosterone undecanoate is an ultra-long-acting testosterone ester compound . Due to its excellent pharmacokinetic properties , it is widely used in hormone replacement therapy (TRT), muscle-building cycles, and long-term athletic performance optimization .

✅ Ultra-long-lasting release :

Undecanoate ester provides a half-life of up to 4 weeks , significantly reducing the frequency of injections

Injection once every 2-4 weeks can maintain stable blood drug concentration

✅ Muscle building and strength improvement :

Significantly promotes protein synthesis , and can increase muscle mass by 6-8kg in a 12-16 week cycle

Improve strength levels and increase your squat/bench press max weight by 10-15%

✅ Physiological function optimization :

Improve sexual function, mood, and cognition

Enhance red blood cell production and improve blood oxygen carrying capacity

Testosterone Undecanoate Properties

Ultra- long-acting sustained-release :

Undecanoate provides a 3-4 week half-life

Inject once every 2-4 weeks to maintain the effect

Potent androgen :

Androgenic Index 100 (Benchmark Compound)

Anabolic Index 100 (Benchmark Compound)

Special solvent systems :

Castor oil as the base solvent ensures slow release of the drug

High -concentration formula (250mg/mL) reduces injection volume

Injection characteristics :

Deep gluteal injection (23G 1.5-inch needle recommended)

The injection speed should be slow to avoid local discomfort

How to Use Testosterone Undecanoate for Fitness

1. Bulking Cycle :

Dosage : 750-1000 mg/injection every 3 weeks

Duration : 12-16 weeks

Combination : High protein diet (2g/kg/day) + calorie surplus

2. Long-term TRT program :

Dosage : 500-750 mg/injection every 4 weeks

Monitoring : Regularly check blood testosterone levels and hematocrit

Strength Enhancement

Dosage : 750 mg/injection every 3 weeks

Effect : Steady increase in ultimate strength

4. Contest Prep :

Dosage : 500mg/time (starting 12 weeks before competition)

Advantages : Avoid frequent injections before the game and maintain a stable state

Testosterone Undecanoate Cycle Support and PCT

Mid- cycle support :

Anti- estrogen : Anastrozole 0.5 mg/week (adjusted based on estrogen symptoms)

Liver protection : Silymarin 600mg/day

Cardiovascular protection : Fish oil 3g/day + Coenzyme Q10 200mg/day

PCT (Post Cycle Therapy) :

Start time : 6-8 weeks after the last injection (due to the very long half-life)

Solution :

Tamoxifen: 20 mg/day for 6 weeks → 10 mg/day for 4 weeks

Clomiphene: 50 mg/day × 4 weeks → 25 mg/day × 4 weeks

Support Supplement :

Vitamin E: 400 IU/day (supports testicular function recovery)

Zinc-magnesium combination: ZMA taken before bed

Testosterone Undecanoate Precautions

⚠ Injection technique : Must be injected deep into the gluteal muscle to avoid subcutaneous retention

⚠ Erythrocytosis : Significant increase in hematocrit (regular blood donation required)

⚠ Estrogen management : High doses require AI, but the requirement is lower than short-acting testosterone

⚠ Start delay : 3-4 weeks to reach steady-state blood concentration

Why choose testosterone undecanoate ?

Ultra-long-lasting properties , significantly reducing injection frequency and discomfort
Stable blood drug concentration , avoiding mood swings caused by peak and trough fluctuations
Suitable for long-term use , ideal for TRT and long cycles

Quality Assurance :

GMP compliant production , aseptic filling process

Third-party laboratory testing (HPLC purity ≥99%)

Endotoxin detection (<0.5EU/mL)

Worldwide Shipping :

Medical multi-dose bottle packaging

Private delivery , no logo on the outer packaging

Temperature- stable transportation to ensure product stability

Testosterone UndecanoateSummary

Testosterone undecanoate is a revolutionary choice for long-term hormone replacement and muscle-building cycles . It is particularly suitable for long-term TRT, muscle building, and athletic performance optimization . The recommended dose is 750-1000mg/every three weeks .

Need a specific usage plan ?

We provide professional medication guidance to help you achieve your goals safely and efficiently!

Testosterone Undecanoate Special Tips :

The extremely long half-life of this drug requires an adjustment to the traditional PCT schedule; a 6-8 week wait after the last injection is required before starting PCT. Regular monitoring of blood counts and liver function tests is essential during use.

If you need anything, please contact Allen