What is T3 (Cytomel / Tiromel)?

T3 is the synthetic version of triiodothyronine, a hormone your thyroid gland produces naturally. It was originally developed to treat hypothyroidism and other thyroid-related conditions. Bodybuilders and athletes use it to speed up metabolism and burn fat faster during a cut.

Quick Facts

How Does It Work?

T3 binds to thyroid hormone receptors in your cells and directly increases your metabolic rate. Your body starts burning through calories, carbohydrates, and fat at a noticeably faster pace. This makes it a powerful tool for fat loss, especially when calories are already restricted.

What It's Used For

• Accelerating fat loss during a cutting phase
• Treating underactive thyroid (hypothyroidism)
• Helping break through stubborn weight loss plateaus

What to Expect

Most users notice increased body temperature, faster heart rate, and a clear boost in how quickly they burn fat. Energy levels can feel elevated, though some people experience restlessness if the dose is too high. Results are noticeable within the first week when diet and training are in check.

Possible Side Effects

• Heart palpitations or elevated heart rate
• Excessive sweating and increased body temperature
• Muscle loss if calories are too low or the dose is too high

Cycle & Dosage Notes

Most cycles run 6–8 weeks, starting at 25mcg per day and increasing gradually if needed — going straight to a high dose is not recommended. T3 suppresses natural thyroid output, so doses should be tapered down slowly at the end of a cycle to allow normal thyroid function to recover. It stacks well with cutting compounds like Clenbuterol or anabolic steroids during a prep phase.

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.