★☆☆☆☆
WARNING!
It's great that the grey is regrowing as natural color, but make sure to watch our for your thyroid, as iodine overload can lead to hyperthyroidism and other problems, as well as refractory hypothyroidism. Strongly suggesting looking at daily allowance for iodine, as well as cutting out iodized salt and trying natural sea or Himalayan salt. Best of luck and health!