T3 25mcg

Description

T3 (Liothyronine) 25mcg is exogenous triiodothyronine — the active thyroid hormone that directly governs metabolic rate, thermogenesis, and the rate of protein and fat catabolism at the cellular level. Where the body converts T4 to T3 enzymatically, exogenous T3 bypasses this conversion step to directly elevate circulating triiodothyronine, driving up basal metabolic rate, increasing mitochondrial uncoupling activity, and creating the thermogenic environment that makes caloric deficits more effective. In cutting contexts, T3 at 25–75mcg daily meaningfully raises fat oxidation rates and prevents the metabolic adaptation (thyroid suppression) that accompanies prolonged caloric restriction. At 25mcg, this is the starting dose — low enough to assess individual response, often used daily during a cut or as part of a competition prep protocol. Suppression of endogenous thyroid function during use requires a structured taper on discontinuation. For maximum fat loss efficiency, T3 is often combined with Clenbuterol and GLP-1 agonists. Verified at 99%+ purity by Puralytix. Taper T3 dose gradually on discontinuation — do not stop abruptly, as sudden removal of exogenous T3 while endogenous thyroid production is still suppressed can cause transient hypothyroidism. Typical taper: reduce by 12.5mcg every 1–2 weeks. Morning administration mimics the natural cortisol peak for most users. Combination with Clenbuterol is common in contest prep — the thermogenic and lipolytic effects are complementary and additive.