Description

Technical Parameters

Testosterone Propionate 50mg/ml Core Introduction

Pharmaceutical -Grade Injection | Testosterone Propionate Fast-Acting Androgen Supplement

Chemical Name : 17β-Hydroxyandrost-4-ene-3-one propionate

CAS number : 57-85-2

Molecular formula : C₂₂H₃₂O₃

Molecular weight : 344.49

Concentration : 50mg/ml

Solvent : Cottonseed oil/Sesame oil + Benzyl alcohol (2%)

Appearance : Transparent light yellow oily liquid

Core Effects

Testosterone propionate is a fast-acting testosterone ester . Due to its rapid onset of action and short half-life , it is widely used in hormone replacement therapy, competitive conditioning, and cycle initiation .

✅ Rapid muscle growth :

Promote protein synthesis , and increase muscle mass by 4-6 kg in 4-6 weeks

Improve nitrogen retention and optimize muscle synthesis environment

✅ Physiological function optimization :

Rapidly increase blood testosterone levels , reaching peak levels in 2-4 hours

Enhance red blood cell production and improve oxygen transport capacity

✅ Short-acting characteristics advantages :

Short half-life (1-2 days) facilitates dose adjustment and cycle management

Rapid clearance , allowing for prompt discontinuation of medication if side effects occur

End Product Preparation Guidelines

1. Preparation of injection oil (50mg/ml) :

Recipe example (preparation volume for 100ml):

Testosterone propionate raw material: 5.0g

Benzyl alcohol: 2.0ml

Cottonseed oil: add to 100ml

Preparation process :

Raw material pretreatment : micronization (D90≤10μm)

Dissolution and mixing : Heat in a 40°C water bath and stir magnetically until completely dissolved

Sterile filtration : 0.22μm membrane positive pressure filtration

Subpackaging : Subpackaging into sterile injection bottles under aseptic environment

Quality Control :

HPLC assay : 95-105% labeled amount

Endotoxin detection : <0.5EU/ml

Sterility test : 14 days of culture by membrane filtration

2. Preparation Notes :

Dissolution Optimization :

Heating temperature : 40-45°C is optimal to avoid high temperature degradation

Stirring speed : 200-300 rpm to ensure complete dissolution

Solvent Selection :

Cottonseed oil : most commonly used, good stability

Sesame oil : Low allergy risk

Filtration process :

Pre- filtration : 1.0μm filter membrane removes large particles

Final filtration : 0.22μm filter membrane ensures sterility

Lifecycle Support and Management

Mid- cycle support :

Antiestrogens :

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

Tamoxifen 10 mg every other day (to prevent estrogen-induced breast cancer)

Liver support : Silymarin 600mg/day

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

PCT Requirements :

Start time : 3 days after the last injection (propionate ester has a short half-life)

Solution :

Tamoxifen: 20 mg/day for 4 weeks → 10 mg/day for 2 weeks

Clomiphene: 50 mg/day for 2 weeks → 25 mg/day for 2 weeks

Why choose testosterone propionate ?

One of the fastest-acting testosterone esters , with rapid onset and clearance

Easy to adjust dosage and stop taking the drug promptly when side effects occur

Multiple functional benefits , both muscle growth and physiological function optimization

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

Conclusion

Testosterone propionate is ideal for hormone replacement and short-term muscle growth , particularly for rapid conditioning, cycle initiation, and precise dosage control . The recommended dose is 50-100mg every other day .

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