Description

Technical Parameters

Introduction

OIL2

Products Description

#### 1. Product classification and positioning

STROMUSC brand Testosterone Cypionate oil can be divided into the following three major application directions:

1. **Clinical replacement therapy level**

Mainly used for male hypogonadism, low testosterone, delayed puberty treatment, osteoporosis adjuvant treatment, etc. Such applications must strictly follow the doctor's instructions, and the dosage and cycle are adjusted according to individual differences.

2. **Sports enhancement and bodybuilding cycle level**

Among bodybuilders, this preparation is often used in muscle-building cycles to help improve muscle strength, volume and recovery ability due to its stable muscle synthesis-promoting effect and low injection frequency requirements.

3. **Research and formulation development level**

Scientific research experiments, animal model construction and new delivery system development often use this oil as a reference standard for pharmacokinetic analysis and control studies.

---

#### 2. Physical and chemical properties

**Ingredient composition**

* Active ingredient: Testosterone Cypionate, 250 mg per ml

* Solvent base: Usually sterile oil of injection grade (such as grape seed oil or cottonseed oil)

* Stabilizing excipients: benzyl alcohol (as an antibacterial agent) and benzyl benzoate (as a solvent stabilizer)

**Chemical properties**

* Molecular formula: C₂₇H₄₀O₃

* Molecular weight: 412.61 g/mol

* CAS number: 58-20-8

* Melting point: 98-104°C (raw material state)

* Solubility: insoluble in water, easily soluble in oils and some organic solvents

**Pharmacokinetic characteristics**

* Route of administration: intramuscular injection

* Half-life: about 8-10 days

* Onset of action: enters the blood circulation within 24-48 hours

* Stable blood drug concentration: long maintenance time, usually one injection every 7-10 days can maintain the level

---

#### 3. Appearance and color

STROMUSC brand Testosterone Cypionate 250mg/ml oil is **clear and transparent to slightly yellow oily liquid**, and there should be no visible impurities and suspended matter under light conditions. Qualified products are packaged in 10ml multi-dose glass bottles, the bottle mouth is sealed with aluminum cap + rubber stopper, and an anti-counterfeiting mark is attached. If the oil is obviously turbid, precipitated or the color is too dark, it should be stopped. It may indicate that the product storage conditions are improper or the expiration date has expired.

---

#### 4. Analysis of product advantages

1. **Long-term stable release**

The cypionate ester structure gives testosterone a strong lipophilicity, which allows the drug to be released slowly after injection, effectively reducing the injection frequency and maintaining a stable testosterone level in the blood.

2. **Small fluctuations in blood drug concentration**

Compared with short-acting esters (such as propionate), Testosterone Cypionate is metabolized slowly in the body, reducing the large fluctuations in hormone concentration, and providing a more stable user experience.

3. **Good muscle absorption**

The oil matrix is scientifically designed with moderate viscosity, and is evenly distributed in the muscle after injection to avoid local nodules or pain.

4. **Wide applicability**

It can meet the clinical treatment needs of low testosterone, as well as the requirements of bodybuilding and strength training for muscle synthesis and strength enhancement.

5. **Strong stability**

The STROMUSC brand maintains strict standards in solvent selection, sterilization process and sealing technology, so that the product has strong stability during storage and transportation.

---

#### 5. Storage and use precautions

* **Storage conditions**: It should be placed in a cool and dry place at a temperature of 10-25°C, away from direct sunlight. Do not freeze to prevent crystallization.

* **Management after opening**: After opening the bottle stopper, it should be used up within 30 days, and the needle and syringe should be kept sterile to prevent contamination.

* **Injection site**: It is recommended to choose large muscle groups (such as gluteus maximus) and use deep muscle injection to avoid local inflammation.

* **Contraindications**: Pregnant women, lactating women, men with prostate cancer or breast cancer are prohibited from using it, and those with abnormal liver function should be cautious.

---

#### 6. Potential risks and side effects

Although the quality of STROMUSC brand Testosterone Cypionate is strict, it is still a hormone drug in nature. If abused or improperly dosed, it may lead to the following risks:

* Water and sodium retention and increased blood pressure

* Inhibition of endogenous testosterone secretion

* Increased cardiovascular risk (dyslipidemia)

* Androgen-related side effects: acne, hair loss, changes in sexual desire

Therefore, it must be used strictly according to the cycle and dosage, and a reasonable PCT (recovery course) must be carried out after the cycle ends.

---

#### 7. Conclusion

STROMUSC brand 250mg/ml 10ml oil Testosterone Cypionate is a high-quality product with significant advantages such as long-term stability, comfortable injection, and smooth drug release. It can not only meet clinical needs, but also be widely favored by the bodybuilding circle. However, as a prescription-level hormone preparation, its use must follow scientific principles and be combined with regular physical examinations to avoid risk out of control. Only by being professional and cautious in storage management, injection specifications, and dosage control can maximum safety and efficacy be achieved.