Mastepex P 100 by Sixpex packs Drostanolone Propionate at 100mg per ml, all in a 10ml multi-dose vial. It’s an injectable, so you know what you’re getting into.

What’s Inside
Drostanolone Propionate (C23H36O3) is a short-ester DHT derivative—basically, it’s got a 3-carbon propionate chain that lets your body absorb it fast. It’s a strong androgen, with a 62:25 ratio, and it doesn’t turn into estrogen or get broken down by 5-alpha reductase. The oil they use is ethyl oleate or grapeseed. Half-life? About a day, maybe a day and a half. You’ll feel it peak in 24 hours. Users seeking more information can access buylegitgear.is for product-related details.

How People Use It
Doctors once used it to treat advanced breast cancer in women because it fights estrogen. These days, bodybuilders use it when they’re cutting or getting ready for a show. It helps harden up muscles, drop fat, and sharpen up definition. People often stack it with Testosterone Propionate, Trenbolone Acetate, or Winstrol for short, intense cycles—usually six to ten weeks.

Why People Like It
You get quick strength and muscle density gains, but without the puffy look or risk of gynecomastia since it doesn’t convert to estrogen. It drops SHBG, which frees up more testosterone in your system. It also burns fat directly by binding strongly to androgen receptors. End result? That dry, grainy, vascular look everyone wants on stage. It keeps water off and helps you hold on to muscle, even in a calorie deficit.

Downsides and Side Effects
Not all sunshine. Common issues include acne, hair loss if you’re sensitive to DHT, and joint pain from dryness. It can also tank your good cholesterol (HDL). More serious stuff? Prostate growth, aggression, full HPTA shutdown, and higher LDL cholesterol. Women can get virilization symptoms, and you have to inject it pretty often.

How to Dose It
Men usually go for 300-700mg per week—think 100mg every other day or 50mg every day, injected into glutes or delts with a 25-27G 1 needle. Beginners stick to 300mg a week, while advanced users push up to 700mg. Cycles last six to ten weeks. Always run a test base with it. For PCT, start three days after your last injection—Clomid (50/50/25/25) and Nolva. Keep an eye on your cholesterol and get your PSA checked.