Rad-140 (Testolone) from XtLabs packs 10 mg of RAD140 into each tablet, and you get somewhere between 50 and 60 tablets per bottle. It’s a selective androgen receptor modulator — a SARM, for short.

What’s Inside
You’re looking at RAD140 (C20H16ClN5O2), a non-steroidal research compound that sticks to androgen receptors in muscle and bone (Ki is 7 nM, if you’re into the details). It has a pretty solid half-life — about 16 to 24 hours. It’s easy on the liver, doesn’t cause much water retention, and your body absorbs it well when you take it by mouth.

Why People Use It
Researchers study RAD140 for things like muscle wasting and breast cancer. In the bodybuilding world, folks use it off-label to build lean muscle, get stronger, drop fat, and boost endurance — all without the usual steroid side effects. It works well if you’re aiming for a leaner look or cutting, especially when stacked with stuff like MastaPlex, OxandroPlex, or Provix.

How to Take It
For guys, the sweet spot is usually 10 to 20 mg a day (so, 1 or 2 tablets), taken in one go in the morning. Most run it for 8 to 12 weeks. Women usually go lower — 5 to 10 mg daily. You’ll want to run PCT (think Clomid or Nolva) afterward since RAD140 can suppress your natural testosterone. Always keep an eye on your bloodwork.

What’s Good About It
RAD140 helps you put on lean muscle and get stronger — fast. Most people see 5 to 10 pounds of lean gains and hang onto muscle even when they’re dieting. There’s some talk about it protecting your brain, too. No issues with estrogen or prolactin, unlike ParaPlex. For a lot of people, it’s a safer bet than steroids.

What’s Not So Great
It does shut down your natural testosterone, and it depends on how much you take. There’s still not a ton of human research out there — it’s mainly a research chemical for now. If you’re an athlete, it’s banned by WADA. Since it usually comes from underground labs, purity can be hit or miss. It won’t pack on as much size as something like OxyPlex.

Side Effects
Most people just get mild testosterone suppression, maybe some acne, hair shedding, mood swings, or a bit of aggression. Sometimes, you might see higher blood pressure, changes in cholesterol, or liver enzymes. Rarely: insomnia or headaches. Keep tabs on your hormones and liver, but side effects are usually milder than what you’d get with traditional steroids.