Check our more Liothyronine (T3) for sale: 1) Liothyronine (T3) 100mcg (50 pills) by Maxtreme – 56$ 2) Liothyronine (T3) 25mcg (50 pills) Maxtreme – 31$ 3) Liothyronine (T3) 25mcg (30 pills) Alpha Pharma – 13$ Liothyronine 100mcg is the most potent form of thyroid hormone. As a salt of triiodothyronine (T3), it is chemically similar and pharmacologically equivalent to T3. As such, it acts on the body to increase the basal metabolic rate, affect protein synthesis and increase the body’s sensitivity to catecholamines (such as adrenaline) by permissiveness. The thyroid hormones are essential to proper development and differentiation of all cells of the human body. These hormones also regulate protein, fat, and carbohydrate metabolism, affecting how human cells use energetic compounds.