Description

Technical Parameters

Sustanon 250 Testosterone 250mg/ml Core Introduction

Pharmaceutical -grade compound injection | Testosterone Blend long-acting androgen supplement

Compound formula :

Testosterone Propionate (TP) : 30mg/ml

Testosterone isocaproate (TIS) : 60mg/ml

Testosterone Phenylpropionate (TPP) : 60mg/ml

Testosterone Decanoate (TDECA) : 100mg/ml

Total concentration : 250mg/ml

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

Appearance : Transparent light yellow oily liquid

Core Effects

Sustanon 250 is a four-ester testosterone formulation widely used in hormone replacement therapy (TRT), muscle-building cycles, and athletic performance optimization due to its multiphasic release properties and excellent hormone stability .

✅ Multiphasic hormone release :

Propionate : Rapid onset of action (peak in 2-4 hours), providing immediate hormonal support

Isocaproate /phenylpropionate : intermediate release (3-5 day half-life), smooth transition

Decanoate : long-acting sustained release (15-day half-life), maintaining stable blood concentration

✅ Physiological level optimization :

Simulates physiological testosterone pulse secretion and reduces blood concentration fluctuations

Maintain stable androgen levels to avoid mood and physical fluctuations

✅ Improved sports performance :

Significant increase in lean body mass (5-8kg/cycle), 15-25% increase in strength

Improve sexual function, mood, and cognition

End Product Preparation Guide

1. Preparation of injection oil (250mg/ml) :

Example recipe (100ml preparation):

Testosterone Propionate Raw Material: 3.0g

Testosterone isocaproate raw material: 6.0g

Testosterone phenylpropionate raw material: 6.0g

Testosterone Decanoate Raw Material: 10.0g

Benzyl alcohol: 2.0ml

Cottonseed oil: add to 100ml

Preparation process :

Stepwise dissolution : dissolve in order of solubility (propionate → isocaproate → phenylpropionate → decanoate)

Heating aid : 40°C water bath heating to accelerate dissolution, magnetic stirrer to mix evenly

Sterile filtration : 0.22μm filter membrane positive pressure filtration sterilization

Subpackaging : Subpackaging into sterile injection bottles under aseptic environment

Quality Control :

HPLC content determination : the content deviation of each ester type is ≤5%

Endotoxin detection : <0.5EU/ml

Sterility test : 14 days of incubation by membrane filtration

2. Preparation Notes :

Raw material pretreatment : All raw materials are micronized (D90≤10μm) to increase dissolution rate

Solvent Selection :

Cottonseed oil : most commonly used, good stability

Sesame oil : Low allergy risk

Castor oil : Higher solubility

Sterilization process :

Autoclave : 121°C for 15 minutes

Filter sterilization : 0.22μm filter membrane positive pressure filtration

How to use

1. Hormone replacement therapy (TRT) :

Dosage : 150-250 mg every 2-3 weeks, deep intramuscularly

Injection site : Gluteus maximus and deltoid muscle rotation injection

Monitoring : Regularly check blood testosterone levels and hematocrit

2. Bulking Cycle :

Dosage : 500-750 mg/week, divided into two injections (Monday/Thursday)

Duration : 12-16 weeks

Results : Increased lean body mass by 5-8kg and significantly improved strength

Strength Enhancement

Dosage : 500 mg/week, divided into two injections

Effect : Increases ultimate strength by 15-25%

4. Injection technique :

Injection route : Deep intramuscular injection

Needle Options : 23G 1.5" (gluteal), 25G 1" (deltoid)

Injection frequency : once every 1-2 weeks

Lifecycle Support and Management

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 Requirements :

Start time : 2 weeks after the last injection

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 Sustanon 250 ?

Multi-phase release characteristics , taking into account the advantages of fast-acting and long-lasting effects

Stable blood drug concentration , reducing mood swings caused by peak and trough fluctuations

Low injection frequency , improving compliance and convenience

Quality Assurance :

GMP compliant production , aseptic filling process

Third-party laboratory testing (determination of ester content)

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

Sustanon 250 is ideal for hormone replacement and muscle-building cycles , particularly for TRT, muscle-building, and performance optimization where stable hormone levels are required . The recommended dose is 500-750mg/week .

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