T3 25 mcg (100 Tablets)

T3 25 mcg (Liothyronine Sodium)

T3 25 mcg contains liothyronine sodium, a synthetic form of the active thyroid hormone triiodothyronine (T3). T3 directly influences metabolism, body temperature regulation, and energy use at the cellular level.

If you're looking to buy T3 in the USA, this product provides a clearly measured 25 mcg dose per tablet for consistent use. (Brand note: British Dragon is often referred to as "British Dragon T3," but repeating the brand name throughout the page is not necessary when it already appears in your domain.)

What T3 Does

T3 is considered the "active" thyroid hormone because it binds directly to thyroid receptors and impacts how the body uses fats, carbohydrates, and calories. Compared to T4 (levothyroxine), T3 does not rely on conversion to become active, so effects can feel faster and more noticeable.

For general background on thyroid hormones and clinical use, see this reference from the NIH: PMC overview on thyroid hormone therapy.

Important Safety Notes

T3 is a potent hormone and is commonly a prescription medication. Using thyroid hormone without medical supervision can increase the risk of side effects, including cardiovascular strain and thyroid suppression. If you have any history of heart issues, high blood pressure, anxiety/panic symptoms, or thyroid disease, you should speak with a licensed medical professional before considering T3.

Why Some Users Choose T3 During Cutting Phases

In bodybuilding circles, T3 is sometimes used during aggressive dieting phases because thyroid activity can drop when calories stay low for a long time. However, improper use can also increase the risk of muscle loss, especially when calories and protein intake are not well managed.

If your site structure supports it, keep internal linking simple and relevant. For example: Clenbuterol 40 mcg (often discussed in cutting contexts) and Testabol Enanthate 250 mg (commonly used as a base compound). Avoid long "shopping list" stacks on-page—those can be moved to a separate cycle guide article.

Storage

Store at room temperature (20–25°C / 68–77°F) in a dry place, away from direct heat and sunlight. Keep tablets in original packaging until use.

T3 25 mcg Profile

Active ingredient: Liothyronine sodium
Drug class: Thyroid hormone (T3 / triiodothyronine)
Common names: T3, Liothyronine, Cytomel
Typical onset: Hours (varies by individual)
Metabolic effect window: Often felt same day; can vary with dose and sensitivity
Half-life: Commonly cited around ~1 day (can vary by source and individual)
Aromatization: None
Water retention: Not typical; changes may occur indirectly via metabolism
HPTA suppression: None (but can suppress the thyroid axis during use)
Key caution: Can increase heart rate and strain in sensitive individuals