Nakon Medical-Proviron 20 – Ultima-Pharma USA

Mesterolone (Proviron) is not an anabolic steroid, but a very potent anti-estrogen. It prevents gynecomastia, reduces water and fat retention, and stimulates testosterone production in the testicles, while preventing the aromatization of anabolic steroids.
Proviron acts as an anti-aromatic: it prevents the aromatization (conversion) of anabolic steroids into estrogens. It thus prevents gynecomastia. It can be combined with Nolvadex to increase its effectiveness. It's important to know that Proviron and Nolvadex are two anti-estrogens with different but complementary mechanisms of action, hence the effectiveness of their combination: while Proviron prevents the aromatization of anabolic steroids, Nolvadex blocks estrogen receptor cells, preventing them from acting. It's a formidable duo.
Proviron is more than just an excellent anti-estrogen: by keeping estrogen levels low, Proviron also reduces water retention. As a result, it gives the user the skin-like appearance sought after by so many bodybuilders, especially when preparing for competitions.