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PROVINOX is an androgenic steroid. It has excellent anti-estrogenic effects and can improve the utilization of other anabolic steroids. It is suitable for everyone who aims to build hard and dense muscles with the necessary definition. It has almost no side effects and, moreover, at doses up to 150 mg daily does not suppress natural testosterone creation.

CHEMICAL NAME: 17beta-hydroxy-alpha-methyl-Salpha-androstan-3-one
HALF-LIFE: 12 hours


Mesterolone is an oral androgen (another name is 1-methyl dihydrotestosterone). Like dihydrotestosterone, mesterolone has great androgenic strength and just not sufficient enough anabolic strength. This is due to the fact that, like dihydrotestosterone, mesterolone is rapidly deactivated in muscle tissue to an inactive substance. Mesterolone has an extremely high affinity for binding to plasma proteins such as SHBG (binding globulin in the sex hormones).This makes mesterolone enhance the activity of other anabolic steroids. Among athletes, mesterolone is primarily used to increase androgen levels in the diet or in preparation for competition. It is well known for its anti-estrogenic effect, due to his own ability to antagonize the aromatase enzyme.

When taking Mesterolone, given are some of increases in muscle, even if minimal, more or less it’s about muscle hardness and density. It is known that androgen receptors are found in the muscle and in fat cells and therefore, the use of Mesterolone together with testosterone promotes muscle growth but also a loss of fat.


It is only slightly hepatotoxic to liver and kidney, because it is not a C17-alpha-alkylated substance. Mesterolone does not affect the formation of testosterone. This substance stimulates the body to produce testosterone, used only as a substance that is used to compensate the lack of the natural male androgen. There is a risk of long-lasting and painful erections when taking this preparation, in that case, it is necessary to reduce the dose. Other side effects are hair loss and enlargement of the prostate; it may also raise blood pressure.


Usual dosage for men is between 50 to 150 mg mesterolone daily. Period of 12 weeks is long enough time for effects of Mesterolone to manifest. Many bodybuilders prefers to use it during definition period and pre-competition training, when particularly desirable are low levels of estrogen and high levels of androgens. Mesterolone is recommended for use in combination with a low-power androgen (Oxandrolone, Methenolone, Stanozolol).In this case, mesterolone adjusts the ratio of androgens to estrogen and helps to increase strength and muscle density, promotes libido and overall sense of well-being and helps to burn fat.

1 review for PROVINOX

  1. 5 out of 5

    (verified owner)

    Good to use at the beginning of a cycle to increase the utilisation of steroids being injected, no kidney pain wkth these which is good and no water retention makes them a winner

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