Proviron by Bayer is a pharmaceutical-grade androgen known for its ability to support hormonal balance, optimize fre testosterone levels, and enhance muscle hardness. As a non-aromatizing androgen, Proviron is widely used to reduce estrogenic side effects, improve libido, and promote a dry, lean physique. It works by binding to sex hormone-binding globulin (SHBG), increasing the availability of free testosterone, making it a valuable addition to TRT, post-cycle therapy (PCT), and performance enhancement protocols.