What is Liothyronine (T3)?

Liothyronine is a synthetic version of the T3 thyroid hormone your body makes naturally. It was originally developed to treat thyroid disorders and hypothyroidism. Bodybuilders and athletes use it to speed up metabolism and burn fat faster.

Quick Facts

How Does It Work?

T3 is the active thyroid hormone that controls how fast your body burns energy. When you take liothyronine, it raises your thyroid hormone levels directly, pushing your metabolism into a higher gear. Your body then burns through calories and stored fat at a noticeably faster rate.

What It's Used For

• Accelerating fat loss during a cutting phase
• Treating low thyroid function (hypothyroidism)
• Stacking with anabolic compounds to offset metabolism slowdown on cycle

What to Expect

Most users notice increased body temperature, a faster heart rate, and stronger sweating within the first few days. Fat loss picks up noticeably, especially when combined with a calorie deficit. Energy levels can feel elevated, though some people find they feel slightly restless at higher doses.

Possible Side Effects

• Heart palpitations or elevated heart rate
• Excessive sweating and feeling overheated
• Muscle loss if doses are too high or cycles run too long

Cycle & Dosage Notes

Most cycles run 4–8 weeks, starting at 25mcg per day and increasing gradually if needed — do not jump straight to high doses. Taper the dose back down slowly at the end of the cycle rather than stopping abruptly, to let your natural thyroid recover. T3 is commonly stacked with cutting steroids or Clenbuterol for enhanced fat loss results.

Storage

Keep at room temperature (15–25°C), away from light and moisture. Leave in the original packaging.

This info is for research and educational purposes only. Check the laws in your country before ordering.