Xeno Labs T3 – 25mcg/100tabs
✓ Burn Fat Extremely Fast – Lose 1-3 pounds per week while keeping your muscle
✓ Works Faster Than T4 – See results within days, not weeks
✓ Break Through Any Plateau – Get shredded when nothing else works
✓ Stay Energized While Cutting – Don’t feel tired even in a big calorie deficit
Original price was: $44.90.$39.90Current price is: $39.90.
In stock
Why You Should Buy Xeno Labs T3 – 25mcg/100tabs at Steroiduck?
What It Does
T3 contains liothyronine sodium at 25mcg per tablet – the synthetic version of triiodothyronine (T3), which is the active thyroid hormone your body uses. While T4 needs to be converted into T3 to work, T3 is already active and ready to go.
When you take T3, it directly speeds up your metabolism by telling every cell in your body to burn more energy. Your body temperature goes up. Your heart beats faster. You burn way more calories even when sitting still. Bodybuilders use T3 when they need to get extremely lean for competitions – under 5% body fat for men, under 10% for women.
Within 2-3 days, you’ll feel T3 working. You’ll feel warmer, sweat more, and notice your energy is higher. Within a week, the fat starts melting off rapidly.
The Main Benefits For You
Extreme Fat Loss
T3 is the most powerful fat-burning hormone your body makes. When you take it, your metabolic rate can increase by 30-50% depending on dose. That’s an extra 500-1000 calories burned per day doing nothing. Over two weeks, that’s 4-6 pounds of pure fat lost.
Works Immediately
T4 takes weeks to convert into T3 and start working. T3 skips that step completely. Within 24-48 hours, your metabolism speeds up. Within a week, you’re losing fat rapidly. This makes it perfect for final contest prep when time is limited.
Get Stage-Ready Lean
When you’re already lean but need to get ultra-shredded for the stage or a photoshoot, T3 burns those last stubborn fat deposits. Your body starts using fat for energy at an accelerated rate. You get the dry, grainy, vascular look that wins shows.
Maintain Training Energy
Unlike harsh dieting that makes you exhausted, T3 keeps your energy levels up by increasing your cellular metabolism. You can still train hard and do cardio without feeling completely drained, even when eating very few calories.
Short Half-Life Means Control
T3 has a 2.5-day half-life, which means you can adjust your dose quickly if needed. If side effects appear, lowering your dose brings relief within days. This gives you more control over your cycle.
FDA DISCLAIMER: This product isn’t intended to diagnose, treat, cure, or prevent any disease. Liothyronine sodium is a prescription medication approved only for treating hypothyroidism and should only be used under proper medical supervision.
Recommended Starting Dosage:
12.5-25mcg daily for the first 3-4 days. Start with half a tablet (12.5mcg) to assess tolerance. T3 is powerful and even small doses have big effects.
Recommended Working Dosage:
25-75mcg daily for most bodybuilders. After the first week at 25mcg, can increase by 12.5-25mcg every 4-5 days if fat loss stalls and sides are tolerated. Maximum dose for most is 75mcg daily. Some advanced users go to 100mcg but this significantly increases risks.
When to Take:
Split your daily dose into 2-3 smaller doses throughout the day. T3's half-life is only 2.5 days, so splitting doses keeps blood levels more stable. Example for 50mcg daily: 25mcg morning, 25mcg early afternoon.
Cycle Duration:
3-6 weeks maximum. Most use it for the final 3-4 weeks before a competition. Don't run longer than 6 weeks or your thyroid will shut down.
Coming Off (CRITICAL):
Must taper down slowly over 7-10 days. Don't stop suddenly. Reduce dose by 12.5-25mcg every 2-3 days. Example: If taking 75mcg daily, drop to 50mcg for 3 days, then 25mcg for 3 days, then 12.5mcg for 2 days, then stop. This lets your natural thyroid function return gradually.
Supporting Measures:
Keep protein intake extremely high (1.2-1.5g per pound of body weight). T3 speeds up protein turnover in muscle tissue. Without enough protein, you'll lose muscle along with fat. This is critical.
Most Common:
- Feeling overheated and excessive sweating
- Heart rate increases significantly (15-30 bpm above baseline)
- Feeling anxious, jittery, or on edge
- Shaky hands and tremors
- Insomnia or difficulty sleeping
- Muscle loss if dose too high or protein too low
- Increased appetite (makes dieting harder)
Serious Side Effects:
- Heart palpitations or irregular heartbeat
- Permanent thyroid suppression if abused (your thyroid stops working)
- Dangerous high heart rate (tachycardia)
- Severe anxiety or panic attacks
- Significant muscle wasting with improper use
- Bone density loss with extended use
- Atrial fibrillation (irregular heart rhythm)
How to Manage:
Start with low dose (12.5-25mcg). Monitor resting heart rate daily - if it exceeds 100 bpm at rest or goes above 90 bpm during normal activity, lower your dose immediately. Get thyroid blood tests (TSH, free T3, free T4) before starting and 4 weeks after stopping. Keep protein extremely high. Don't use for longer than 6 weeks.
CRITICAL WARNING:
T3 can permanently damage your thyroid if you abuse it. Taking too much for too long can cause your thyroid to stop producing hormones even after you stop T3. This requires lifelong thyroid medication. Always respect dosing guidelines and taper off properly.
Active Ingredient:
Liothyronine Sodium (synthetic L-triiodothyronine, T3)
Dosage Strength:
25 mcg (micrograms) per tablet
Quantity:
50 tablets per bottle (1250mcg total)
Intended Use:
Primary FDA-approved use: Treating hypothyroidism, myxedema coma, thyroid hormone replacement therapy.
Primary bodybuilding use: Rapid fat loss during cutting cycles, contest preparation final weeks, breaking through extreme fat loss plateaus, achieving ultra-low body fat.
Classification:
Thyroid hormone, synthetic triiodothyronine
Mechanism of Action:
T3 is the active thyroid hormone that binds directly to thyroid hormone receptors (primarily TRβ) in cells throughout the body. It increases basal metabolic rate by:
- Increasing mitochondrial number and activity
- Upregulating uncoupling proteins for thermogenesis
- Enhancing cellular oxygen consumption
- Accelerating protein, carbohydrate, and fat metabolism
- Increasing heart rate and cardiac output
- Stimulating lipolysis (fat breakdown)
Half-Life:
Approximately 2.5 days (about 60 hours)
Time to Peak Concentration:
2-4 hours after oral dose
Time to Steady State:
2-3 days of daily dosing (much faster than T4)
Bioavailability:
95% oral absorption (nearly complete absorption)
Onset of Action:
Effects begin within hours, peak effects in 24-48 hours
Duration of Action:
Effects persist for several days after discontinuation due to half-life
Protein Binding:
High (99.5-99.7% bound to plasma proteins)
Effects on Metabolism:
- Increases basal metabolic rate by 30-50% at higher doses
- Elevates body temperature by 1-2°F
- Increases heart rate by 15-30%
- Significantly enhances lipolysis and fat oxidation
- Increases protein turnover (both synthesis and breakdown)
Excretion:
Primarily through urine and feces as metabolites
Molecular Formula:
C15H12I3NO4
Molecular Weight:
650.98 g/mol
Administration:
Oral tablet, swallow with water. Can be taken with or without food, though consistent timing recommended.
Storage:
Store at room temperature 68-77°F (20-25°C) in original container. Protect from light and moisture. Keep away from children.
Also Known As:
Liothyronine, Cytomel, Triiodothyronine, T3
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