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Testosterone Undecanoate 1 vial/10 ml (250 mg/1 ml)

Testosterone Undecanoate in vial

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Why buy this product

Testosterone Undecanoate by Cygnus Pharma is actively used in sports practice, where the main role in the formation of a beautiful physical shape is played by muscle building and strength indicators. The drug differs from other testosterone esters in that it has a longer half-life. This means that you do not need to take injections for a long time - it has a prolonged effect.

Testosterone Undecanoate does not have a high androgenic effect, so athletes rarely experience gynecomastia, fluid retention, and other negative estrogen-dependent side reactions. To a small extent, the drug suppresses the production of its own testosterone.


  • oil-based: yes;
  • retains water: yes;
  • aromatization: yes;
  • women: not recommended.

Steroid Profile of Testosterone Undecanoate

  • half-life is at least 14 days;
  • the time of action of the substance after injection is at least 21 days;
  • anabolic activity index - 100%;
  • androgenic activity index - 100%;
  • the degree of mutual contact with aromatase (aromatization) is high;
  • half-life: 3 months (active life 3 months);
  • detection time: 6 months;
  • conversion to dihydrotestosterone is present.

Effects of Testosterone Undecanoate

Due to its properties, the drug is very popular in traditional medicine and sports. It has a positive effect on the entire body as a whole, especially for men.

  1. weight gain (given a well-planned diet);
  2. increased metabolic rate;
  3. protection of muscle tissue;
  4. reduces the risk of ischemia of the heart and coronary diseases;
  5. increases libido and potency (the opposite effect is possible);
  6. improves your strength;
  7. improves muscle relief;
  8. increases energy;
  9. faster regeneration;
  10. increase in collagen synthesis.

Application and dosage of Testosterone Undecanoate

To achieve a positive result, it is required to inject up to 1000 mg of the steroid 1 time in 2-4 weeks. So that a bump does not form at the injection site, the solution must be administered slowly. Injections should be made in large muscle groups: buttocks, deltas, outer side of the thigh.

As studies have shown, testosterone undecanoate does not have a toxic effect on the liver, since when absorbed from the gastrointestinal tract it enters the lymph (not into the blood), with the flow of which through the common lymphatic duct enters the general bloodstream, i.e. the liver. In the body, undecanoate is converted to dihydrotestosterone, the active metabolite of testosterone, which means that the substance is actually a prohormone.

Post cycle therapy

Due to the ability of the injectable steroid to slightly affect testosterone production, after two weeks after the last injection, it is necessary to carry out post-cycle therapy using Clomid or tamoxifen at dosages as for the lightest cycle.

Side effects

With the correct dosages and the absence of individual intolerance to the active ingredient, the drug is not able to cause adverse reactions, otherwise the following deviations in the body's work are possible:

  • increased blood pressure;
  • excessive excitement, aggressiveness and irritability;
  • acne
  • excessive growth of hair on the body and baldness on the head.

These side effects are temporary and often disappear after stopping the steroid.

Contraindications for use

Taking the drug is contraindicated in the following conditions:

  • metastases in bone tissue;
  • breast or prostate cancer in men;
  • diabetes;
  • high levels of cholesterol and calcium in the blood;
  • high blood pressure, coronary heart disease;
  • pulmonary embolism;
  • chronic thrombosis;
  • chronic diseases of the lungs, liver, kidneys;
  • visible lymphatic retention.

The drug is contraindicated in pregnant women, nursing mothers, as well as persons with an abnormal increase in red blood cells.

The substance is not recommended for persons with hypersensitivity to synthetic testosterone, refined castor oil, benzyl benzoate.


Active ingridient
Testosterone Undecanoate
Strength gains, Total weight gain


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The information provided does not encourage the use or distribution of any potent substances and is solely intended to reduce the risk of complications and side effects. Consult your physician and read the instructions before using this medicine.

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