Description

Technical Parameters

DECA300 (Nandrolone Decanoate) 300mg/ml Core Introduction

Pharmaceutical Grade Injection | Nandrolone Decanoate (High-Concentration, Long-Acting Anabolic Steroid )

Chemical Name : 17β-Hydroxyestradiol-4-en-3-one decanoate

CAS number : 360-70-3

Molecular formula : C₂₈H₄₄O₃

Molecular weight : 428.65

Concentration : 300mg/ml

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

Appearance : Transparent light yellow oily liquid

Core Effects

Nandrolone decanoate (DECA300) is a high-concentration, long-acting anabolic steroid widely used for joint pain relief, muscle mass building, and rehabilitation therapy due to its excellent joint lubrication properties and mild muscle-building effects .

✅ Improved joint health :

Promotes joint synovial fluid secretion , relieves joint pain and stiffness

Enhance connective tissue strength and reduce the risk of sports injuries

✅ Gentle muscle growth :

Promote protein synthesis , and increase muscle mass by 8-12kg in 10-12 weeks

Slow and steady muscle growth to avoid rapid water retention

✅ Low androgenic properties :

Low androgenic activity (androgenic index 37), with minimal risk of side effects

Does not convert into DHT , no risk of hair loss and prostate hyperplasia

✅ High concentration advantages :

Reduce injection volume and improve user comfort

The blood concentration is stable and the half-life of the long-acting ester is up to 15 days

✅ Rehabilitation therapy application :

Promote bone healing and treat osteoporosis

Improve anemia and stimulate red blood cell production

End Product Preparation Guidelines

1. Preparation of high concentration injection oil (300mg/ml) :

Recipe example (preparation volume for 100ml):

Nandrolone decanoate raw material: 30.0g

Benzyl alcohol: 2.0ml

Cottonseed oil: add to 100ml

Preparation process :

Raw material pretreatment : micronization (D90≤5μm)

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

High concentration stability treatment : Add appropriate amount of co-solvent (such as benzyl benzoate)

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 (285-315 mg/ml)

Endotoxin detection : <0.5EU/ml

Sterility test : 14 days of culture by membrane filtration

2. Precautions for high concentration preparation :

Raw material particle size control : D90≤5μm to ensure complete dissolution

Dissolution Optimization :

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

Stirring speed : 300-400 rpm to ensure high concentration dissolution

Stability Enhancements :

Cosolvent addition : Benzyl benzoate (5-10%) improves stability

Antioxidants : Vitamin E to prevent oxidative degradation

Usage Protocol

1. Joint health cycle :

Dosage : 300-600 mg/week, deep intramuscular injection

Duration : 12-16 weeks

Effect : Joint pain is significantly relieved and exercise comfort is improved

2. Muscle-building cycle :

Dosage : 600-900 mg/week, deep intramuscular injection

Duration : 10-12 weeks

Effects : Lean body mass increased by 8-12kg, and muscle mass steadily improved

3. Rehabilitation Therapy Applications :

Dosage : 100-200 mg/week, deep intramuscular injection

Treatment duration : Long-term treatment

Effect : Improved bone density and relief of anemia

4. Injection technique :

Injection route : Deep intramuscular injection

Injection site :

Gluteus maximus : preferred site, stable absorption

Deltoid muscle : Secondary site, easy to operate

High concentration injection points :

Slow injection : 60 seconds/ml to avoid local irritation

Post-operative massage : Gentle massage promotes diffusion and absorption

Injection frequency : Once a week (long-acting esters have a long half-life)

5. Injection steps :

Preparation before injection :

Wash your hands and prepare alcohol pads, needles, and syringes

Warm the vial to 37°C (hold in the palm of your hand for 2 minutes)

Drug extraction operation :

Sterilize the rubber stopper and inject an equal amount of air

Slowly draw out the required dose, removing any air bubbles.

Injection procedure :

Disinfect the injection site (5 cm diameter circle)

Rapidly advance the needle 90 degrees and slowly push the needle in (30 seconds/ml)

After removing the needle, press the cotton pad and do not massage the injection site

Lifecycle Support and Management

Mid- cycle support :

Antiestrogens :

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

Cardiovascular protection :

Fish oil 3g/day

Coenzyme Q10 200 mg/day

Prostate protection : Saw palmetto extract 320mg/day

PCT Requirements :

Start time : 3 weeks after the last injection (decanoate has a long 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 DECA300 ?

The highest concentration of nandrolone decanoate preparation , reducing injection volume and improving comfort

One of the safest steroids with very low risk of side effects

Unique joint protection function to improve exercise comfort

Quality Assurance :

GMP compliant production , aseptic filling process

Third-party laboratory testing (HPLC assay)

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

DECA300 is an ideal choice for joint health and high-quality muscle growth . It is particularly suitable for joint pain relief, muscle mass improvement and rehabilitation treatment . The recommended dose is 300-900mg/week .

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