I have had a couple of cases with hairloss; both before Iodine
and during the first weeks of Iodine
supplementation. The female (60) also lost the outer part of her eyebrows and eyelashes, which is a symptom of hypo T. Her hair was very thin on top; has grown out 100 % of what it was in her prime 40 ish she said. Eyebrows and lashes also came back.
One male; 42, was thin on top before iodine, lost more hairs the first weeks of iodine; the hairloss stopped and filled in after a couple of months.
A girl (10) had alopecia; the hairless spot (size of a small hand) now is full with hair again; it took 3 months of Iodine
before the hair started to grow again.
Edit; all of them had a balanced iodine-selenium intake.