Product Description
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Specifications: |
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| Packaging | 50 tablets (1 x 50) |
| Concentration | 25 mcg/tablet |
| Active Substance | Liothyronine Sodium (T3) |
| Active Half-life | 2.5 days |
| Group | Fat Burner |
| Subgroup | Thyroid Hormone |
| Recommended Dosage | Men’s Dose: 25-75mcg per day. Women’s Dose: 12.5-50mcg per day. |
| Oil-based / Base | N/A (Oral tablet) |
| Retains Water | No |
| Aromatization | N/A |
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Product Description: |
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| What It Is and How It Works | |
| Liothyronine, sold as Cytomel or T3, is a synthetic form of the active thyroid hormone triiodothyronine. It is used medically to treat hypothyroidism. In bodybuilding, T3 is one of the most effective fat-loss compounds available, because it directly increases the basal metabolic rate.
T3 raises the body’s energy expenditure by increasing cellular activity. Users typically experience faster fat loss, increased body heat, and slightly elevated heart rate. It does not increase fat loss without a caloric deficit – it simply makes the body burn through stored fat (and protein) faster. The major risk of T3 use is muscle loss. Elevated T3 increases protein catabolism, so users must keep protein intake high and ideally pair T3 with anabolic compounds to preserve lean tissue. Other side effects include increased heart rate, sweating, anxiety, and potential suppression of natural thyroid function (usually reversible after discontinuation). |
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| How is it used? | |
| T3 has a half-life of around 2.5 days, but most users split the daily dose into 2 or 3 servings to maintain stable blood levels. It is typically started at a low dose (25mcg per day) and gradually increased over 1 to 2 weeks to the target dose, then tapered back down at the end of the cycle to allow natural thyroid function to recover.
T3 is most effective when combined with an anabolic compound to preserve muscle. Running T3 with a Testosterone-based cycle prevents the muscle wasting that can otherwise occur. |
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| Dose | |
| This product is dosed at 25mcg per tablet, 50 tablets per box. Typical performance dosing ranges from 25 to 75mcg per day. Beginners should start at 25mcg per day and increase by 12.5 to 25mcg every 3 to 5 days until the target dose is reached. Taper down before stopping. |
| Advice From PhoenixFire: | |
| Always pair with an anabolic | T3 alone will cause muscle loss. Run with Testosterone or another anabolic to preserve lean tissue. |
| Start low and taper | Begin at 25mcg per day, increase gradually, and taper down before stopping. Sudden discontinuation can cause sluggish thyroid recovery. |
| Eat plenty of protein | Elevated T3 increases protein catabolism. Aim for 2 to 2.5g of protein per kg of body weight daily. |
| Watch heart rate | T3 elevates heart rate. If resting HR rises significantly or you feel palpitations, reduce the dose. |
| Bloodwork after the cycle | Check TSH, T3, and T4 a few weeks after stopping to confirm thyroid function has returned to baseline. |
| FAQ: | |
| Q1 | How much fat can I lose on T3? |
| A1 | T3 accelerates fat loss in a calorie deficit. Many users lose 1 to 1.5 kg per week on a moderate deficit with T3, compared to 0.5 to 1 kg without. |
| Q2 | Will T3 cause permanent thyroid damage? |
| A2 | Short-term use rarely causes permanent issues. Natural thyroid function usually recovers within a few weeks of stopping, especially with a proper taper. |
| Q3 | How long should a T3 cycle last? |
| A3 | 6 to 8 weeks is typical, with a taper up at the start and a taper down at the end. Longer cycles increase the risk of slower thyroid recovery. |
| Q4 | Can I run T3 without an anabolic compound? |
| A4 | It is strongly discouraged. T3 will burn muscle along with fat if no anabolic protection is in place. |
| Q5 | T3 vs Clenbuterol – which is better? |
| A5 | They work differently. T3 raises metabolic rate; Clen is a beta-2 agonist. Some users stack them for maximum fat loss, but doing so requires careful monitoring of heart rate and electrolytes. |
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