Proviron 20 - Ryzen Pharmaceuticals

Proviron, the brand name for mesterolone, was developed to manage androgen deficiency, particularly in aging men. Its unique structure is derived from dihydrotestosterone (DHT) and prevents conversion to estrogen, thereby avoiding water retention and related side effects. The drug’s anti-estrogenic effects make it valuable in bodybuilding, particularly in lean cycles where muscle hardness is prioritized. Despite its androgenic nature, mesterolone is not hepatotoxic, which has contributed to its widespread use globally, with Bayer as the main manufacturer​.

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For detailed information about Proviron 20 by Ryzen Pharmaceuticals, consult with your doctor or healthcare professional.