Package: 1 vial (350mg/ml 10ml)

Active Substance: Testosterone Mix

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Sustaplex 350 from AxioLab, known as a mix of Testosterone esters, is a powerful injectable anabolic steroid. It is primarily used to treat low testosterone levels in men, a condition known as hypogonadism. This drug is also popular among bodybuilders and athletes for its ability to significantly enhance muscle mass, strength, and overall performance. The blend of testosterone esters in Sustaplex 350 provides a steady release of testosterone into the bloodstream, making it effective for those seeking long-lasting effects from their steroid regimen.


There are several contraindications to consider before using Sustaplex 350. It should not be used by individuals with prostate or breast cancer, as testosterone can stimulate the growth of these cancers. People with severe liver or kidney disease should also avoid this steroid due to the additional strain it can place on these organs. Pregnant or breastfeeding women should not use Sustaplex 350 because of potential risks to fetal development and infant health. Additionally, those with known hypersensitivity to any component of the drug should refrain from using it.


Sustaplex 350 is administered through intramuscular injection. The dosage and frequency depend on the individual’s goals, experience with steroids, and overall health. For men, a common dosage ranges from 350 to 700 milligrams per week, divided into two injections to maintain stable blood levels. It is important to follow a proper injection protocol to avoid complications like infections or injection site pain. Rotating injection sites can help prevent tissue damage and ensure optimal absorption of the drug.

Medical Action

The blend of testosterone esters in Sustaplex 350 includes testosterone propionate, testosterone phenylpropionate, testosterone isocaproate, and testosterone decanoate. Each ester has a different release rate, providing a sustained release of testosterone into the bloodstream. Testosterone works by binding to androgen receptors in muscle tissue, promoting protein synthesis and nitrogen retention. This process helps build and maintain muscle mass, improve strength, and enhance recovery from intense workouts. The steady release of testosterone also helps maintain stable hormone levels, reducing the frequency of injections needed compared to single-ester testosterone formulations.


Before starting a cycle of Sustaplex 350, it is important to undergo a thorough medical examination to ensure you are fit for steroid use. Regular monitoring of liver and kidney function, as well as blood pressure, is recommended during the course of administration. Users should also be aware of the potential for cardiovascular issues, as anabolic steroids can negatively impact cholesterol levels and increase the risk of heart disease. Maintaining a balanced diet rich in essential nutrients and following a consistent exercise regimen are crucial to maximizing the benefits of Sustaplex 350 while minimizing risks. Staying hydrated and maintaining electrolyte balance is also important to support overall health during the cycle.

Side Effects

While Sustaplex 350 is effective for enhancing physical performance, it is not without potential side effects. Common side effects include acne, hair loss, and increased body hair growth. Due to its androgenic nature, women should avoid using this steroid to prevent virilization symptoms such as deepening of the voice, menstrual irregularities, and clitoral enlargement. Other possible side effects include liver toxicity, although this is less common compared to oral steroids, and alterations in lipid profiles, which can increase the risk of atherosclerosis. Users should be vigilant and consult with a healthcare professional if they notice any adverse reactions. It is also important to monitor for signs of estrogen-related side effects like gynecomastia and water retention, as testosterone can aromatize into estrogen.


In cases of overdosage, the likelihood of side effects increases significantly. Symptoms of overdosage may include severe liver damage, cardiovascular complications, and pronounced hormonal imbalances. Immediate medical attention is necessary if an overdose is suspected. Treatment typically involves supportive care to manage symptoms and prevent further complications. It is crucial to adhere to recommended dosages and avoid the temptation to use higher amounts in pursuit of faster results. Overuse of Sustaplex 350 can lead to serious health issues, so responsible usage is key to maintaining health and achieving desired outcomes.


Sustaplex 350, a mix of testosterone esters, is a valuable tool for bodybuilders and athletes seeking to enhance muscle mass and improve performance. However, it is essential to use this drug responsibly, under medical supervision, and with a clear understanding of the potential risks and benefits. By following proper administration protocols, maintaining regular health check-ups, and adopting a healthy lifestyle, users can optimize their results while minimizing adverse effects. Always prioritize safety and informed decision-making when considering the use of anabolic steroids like Sustaplex 350. This approach ensures that users can achieve their fitness goals while safeguarding their long-term health.


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