T3 (Liothyronine) by Xeno Labs

What’s T3? 
It’s short for Liothyronine, a lab-made version of your body’s own triiodothyronine—the thyroid hormone that keeps your metabolism ticking and your energy up. Basically, it helps manage how your body uses energy and keeps your hormones in check.

What’s inside:
Active ingredient: Liothyronine sodium (T3)
Forms: Mostly tablets, sometimes injections—it depends on the product.

Why do people use T3?
Doctors prescribe it to treat hypothyroidism, which is when your thyroid runs slow. It also helps shrink goiters and, sometimes, supports weight loss (but only if a doctor’s keeping an eye on things). Labs use it in thyroid tests, too.

Now, outside the doctor’s office, some athletes and bodybuilders try T3 to ramp up metabolism and burn fat. Honestly, this isn’t something to mess with on your own—there are real risks if you don’t have proper supervision.

How do you take it?
Usually, you swallow a tablet. Some products come as injections. For hypothyroidism, most people start with 25 to 75 mcg per day, and doctors adjust the dose after checking your thyroid levels. Those using it for fat loss usually take less, and it needs careful supervision. How long you stay on it varies, but long-term use always needs regular check-ins.

Benefits:
T3 works fast, faster than some other thyroid meds. It’s great at bumping up hormone levels, boosting metabolism, and lifting energy. If used right, it can help with weight management.

Side effects—what to watch for:
You might feel your heart racing or skipping beats. Some people get anxious, have trouble sleeping, shake, sweat more, or lose weight quickly. Stick with it too long or take too much, and you risk osteoporosis or full-blown hyperthyroid symptoms. That’s why dosing and doctor visits matter.

Why consider it?
It kicks in fast and works well for people whose thyroid needs a hand. It can boost metabolism and help with energy if your thyroid is sluggish.

But there are drawbacks.
Taking too much can send you into hyperthyroidism, which isn’t fun—think heart problems and all those jumpy, wired feelings. It’s not right for everyone, especially if you’ve got heart issues. You’ll need to keep up with blood tests to make sure everything’s on track.

Bottom line? 
Xeno Labs’ Liothyronine (T3) is powerful stuff for managing hypothyroidism and supporting your metabolism. Just don’t go it alone—let your doctor guide you for the safest results.