Provipex 25 by Sixpex packs 25mg of Mesterolone (Proviron) into each tablet, and you get a 100 tablets per box.

What’s Inside
The main ingredient here is Mesterolone. It’s a synthetic oral androgen and anabolic steroid (AAS) that comes from dihydrotestosterone (DHT)—that’s C20H32O2 if you’re into formulas. It doesn’t convert to estrogen, grabs tightly onto sex hormone-binding globulin (SHBG) to free up more testosterone, runs on a 12-hour half-life, and doesn’t hit your liver too hard.

What It’s For
Doctors use it to treat low testosterone, infertility, or hypogonadism in men—it helps lift libido and improve sperm quality. In bodybuilding, people turn to it as an anti-estrogen during cycles. It bumps up free testosterone, keeps muscles looking hard, and fends off estrogen-related problems. It’s a favorite for cutting or stacking with other compounds.

Why Use It
You’ll notice tougher, more defined muscles since it cuts down estrogen and SHBG. It also fires up your libido, boosts mood, and gives you that vascular look—no water retention. When you pair it with other steroids, it makes them work even better. Expect mild strength gains and quicker recovery, plus it’s generally safer for longer use.

Side Effects
You might get acne or experience hair loss (especially if you’re already prone—thanks, DHT), or see some prostate growth and mild androgenic effects. On the serious side, watch out for changes in cholesterol, aggression, a dip in natural testosterone (though less than with other steroids), and some liver strain if you go overboard. Women rarely use it, but if they do, virilization can happen—so keep an eye on cholesterol and other markers.

How to Use It
For men, 25-75mg per day (split into a couple of doses) over 4-8 weeks does the trick—most stick with 50mg daily. For women, 25mg is the max, but that’s not common. It works best stacked with aromatizing compounds. You don’t need a PCT if you’re running it solo. Still, talk to a doctor first—this stuff’s a controlled substance in a lot of places.