T3 – Cytomel

What is T3 (Cytomel) by SYN Pharma?

T3 (Liothyronine Sodium), sold under the brand name Cytomel, is a synthetic form of the active thyroid hormone triiodothyronine. It is commonly used in research and clinical settings to support thyroid function, stimulate metabolism, and enhance fat loss. SYN Pharma’s Cytomel is produced to high purity standards and dosed accurately for reliable research applications.

Due to its potent metabolic effects, T3 is widely utilized in cutting and contest-prep protocols to accelerate fat loss, increase thermogenesis, and improve nutrient partitioning.

T3 (Cytomel) Benefits

When administered appropriately, T3 may offer the following benefits:

• Increased metabolic rate: elevates the basal metabolic rate (BMR), helping to burn more calories at rest;
• Enhanced fat loss: promotes the mobilization and oxidation of stored fat during calorie-restricted phases;
• Improved energy and body temperature regulation: supports cellular activity and thermogenesis;
• Supports lean appearance: often used by athletes to achieve a dry, shredded physique prior to competition.

Potential Side Effects

T3 is a powerful hormone and must be used cautiously. Possible side effects include:

• Increased heart rate or palpitations;
• Insomnia or restlessness;
• Muscle loss if used without anabolic support;
• Anxiety, sweating, or elevated body temperature;
• Suppression of natural thyroid hormone production (with extended use).

Proper cycle management and gradual tapering are critical to minimize negative effects and support natural hormonal recovery.

Contraindications

T3 should not be used under the following conditions without clinical supervision:

• Pre-existing hyperthyroidism or heart disease;
• Unmanaged anxiety or panic disorders;
• Pregnancy or breastfeeding;
• Use of other thyroid or stimulant-based medications.

T3 Dosage and Administration

Typical research dosages range between **25–75 mcg per day**, depending on tolerance and objectives. Most users begin at **25 mcg/day**, increasing gradually in 12.5–25 mcg increments every 3–5 days.

T3 should be taken in the morning and may be split into two daily doses for smoother hormonal response. Do not abruptly discontinue—taper down gradually to support natural thyroid recovery.

6-Week Fat Loss Protocol

T3 (Cytomel) Cutting Stack

Common Questions About T3 (Cytomel)

Can I use T3 without other compounds?

While T3 can be effective alone, it may result in muscle loss if not supported by anabolic agents or sufficient protein intake. Many users stack T3 with SARMs, steroids, or peptides to preserve lean mass during aggressive cutting phases.

Do I need to taper off T3?

Yes. Abrupt discontinuation can result in metabolic slowdown and temporary hypothyroid symptoms. Always taper dosage over 1–2 weeks to allow natural thyroid hormone production to resume.

Can women use T3?

Yes, but dosing should be conservative—starting at **12.5–25 mcg/day** and monitored closely. Female athletes often use T3 during competition prep under guidance.

Is T3 legal?

T3 (Liothyronine Sodium) is a prescription medication in most countries. SYN Pharma offers it strictly for research purposes and non-clinical applications. Not for human consumption.