30 years ago my son lost his hair through nerves he was only 8 year old at the time, a old lady told me to rub in white iodine every night which i did, within 6 week his hair was so thick, i also had very weak nails the iodine strenghened them.
My wife unexpectedly had all the hairs in her eyebrows fall out over a period of several weeks. There was no apparent cause but we suspected stress had something to do with it. They did eventually grow back, but were very thin and the follicles were still weak. It wasn't until almost a year later that a wonderful holistic doctor tested her and found her iodine deficient. She was put on an iodine pill, her energy levels came way up, the her eyebrows are as thick as ever. Kelp tablets would probably do the trick too, as they are high in iodine.
In Mexico, some people have used iodine as a means of preventing baldness. One woman used iodine for years as a preventive measure against baldness. She used it as a rinse after washing her hair. Another woman told me to "cure" a bald spot by dabbing iodine on the bald spot or area of thinning hair. After a while, a crust will form. Eventually, beneath the crust fine hairs will start to grow. She said it can take about three months to see the results. I don't know if this would work with men. It's something I've heard about. Can you give me your opinion on this?