Description

Its an orally administered androgenic called Mesterolone (1-methyl dihydrotestosterone) from UPA. Mesterolone is a strong androgen and shows a weak level of anabolic activity. This is because, like dihydrotestosterone, Mesterolone is rapidly reduced in muscle tissue to inactive diol metabolites, where the concentration of the enzyme 3-hydroxysteroid dehydrogenase is quite high.

Effects of Proviron
You should not take seriously the belief that the weak anabolic nature of this compound causes blockage of androgen receptors in muscle tissues, thereby reducing the benefits of other steroids that are more powerful for muscle building. In fact, due to its extremely high affinity for plasma proteins, such as SHBG, Mesterolone can actually affect the activity of other steroids converting a higher percentage of them to a free unbound form. In athletes, Mesterolone is mainly used to increase androgen levels during diets or preparation for competitions and as an anti-estrogen due to its ability to counteract aromatase enzymes. Mesterolone can be effective in increasing the ratio of androgens to estrogens, leading to increased muscle hardness and density, maintaining libido and a general sense of well-being, and increasing fat burning tendencies. It is also widely used to prevent gynecomastia, while other aromatized steroids are often used in combination with 10-20mg of Nolvadex per day.