the "4" in T4 and the "3" in T3 refer to the number of iodine atoms attached to each molecule
Additionally, a randomized, double-blind, placebo-controlled trial in 2,588 healthy older adults with mild hyperhomocysteinemia found that daily supplementation with 500 g of vitamin B 12 and 400 g of folic acid for two years reduced blood homocysteine concentrations but had no benefit on depressive symptoms in those with or without depressive symptoms at baseline (110)
Tang H, Donahoo WT, DeKosky ST, Lee YA, Svensson M, Bian J, Guo J (2025)
In other words, your mileage may vary
Bioperine (black pepper extract) - 5 mg
35, 36 In rats and mice in which hypertension is induced by AT-II infusion, the expression of NADPH oxidase subunits, oxidase activity and the generation of ROS are all increased