I have been taking Iodine for 3 years and this is just my personal opinion regarding any effects re: Hair - Skin
I am now in mid-late 40's
When I look at other women my age I know that my skin is MUCH younger looking. I have no wrinkles around my eyes, small wrinkles around my mouth that you can only see if your really look. If I oil pull daily these wrinkles disappear and I really think that if I would not whistle they would not be there ---- But I LOVE to whistle. Now for some reason the skin on my neck and chest does seem to be a little thinner, I do not have wrinkles yet, but I can see that I might soon.
My hair is white - not Gray - White - I believe this is genetic, It is very thick, I have had times before when I was taking the wrong selenium that it started to thin.
I believe that Iodine + recommended supplements and oil pulling is the best thing that you can do for your skin. I have questions regarding minerals and my hair that I am still exploring.......