Thorne Thyrocsin Thyroid Cofactors 120 Capsules - Complete Thyroid Support

Thyroid Hormone Production Support: Provides essential building blocks for thyroid hormone synthesis, including iodine (necessary for T4 formation) and L-tyrosine (a critical amino acid component of both T4 and T3). These nutrients work synergistically to support healthy baseline thyroid hormone levels, addressing common nutritional deficiencies that can compromise thyroid function and contribute to symptoms like fatigue, weight gain, and difficulty concentrating.

Enhanced T4 to T3 Conversion: Features targeted mineral cofactors selenium, zinc (as TRAACS® Bisglycinate Chelate), and copper that facilitate the enzymatic conversion of inactive T4 thyroid hormone into its active T3 form. This peripheral conversion is essential for optimal metabolism, as T3 directly regulates cellular energy production, basal metabolic rate, and thermogenesis. The chelated zinc provides superior bioavailability for maximum enzymatic support.

Adaptogenic and Metabolic Balance: Contains KSM-66® Ashwagandha (90 mg), a clinically studied adaptogenic botanical that animal studies suggest may help increase T4 concentrations while supporting balanced cortisol levels. High cortisol can interfere with thyroid function and T4 to T3 conversion, making this adaptogenic support crucial for maintaining healthy thyroid-adrenal axis communication and metabolic homeostasis.

Antioxidant Protection and B12 Support: Includes vitamin C (200 mg), vitamin E (67 mg), and methylcobalamin B12 (100 mcg) to protect thyroid tissue from oxidative stress and heavy metal toxicity, which can inhibit T4 to T3 conversion. Vitamin B12 is particularly important as deficiencies appear to interfere with thyroid hormone activity at the cellular level, impacting receptor sensitivity and metabolic outcomes.