The physiological steps of thyroid hormones are made predominantly by T3, nearly all which (approximately 80%) is derived from T4 by deiodination in peripheral tissues. Thyroid hormones are principally removed through the kidneys. A portion of the conjugated hormone reaches the colon unchanged and it is eradicated during the feces. https://sergiollhda.pointblog.net/the-smart-trick-of-200mg-ml-testosterone-that-no-one-is-discussing-88941737