Proviron (Mesterolone) is one of the most popular PCT (post cycle therapy) and after steroid cycle product and used mostly in bodybuilding and among athletes. Proviron is also great product for men which not produce enough testosterone (hypogonadism). Bodybuilders love this product because makes muscles more harder and because this product is orally active for of DHT and will prevent estrogen forming. Proviron tablets are firstly discovered in 1934 by Bayer Schering and this makes him oldest steroid ever manufactured.
Proviron can bring some side effects and one of most known are: headache, breast enlagement, increased sexual drive, acne and excessive hairiness.