I have had dry skin and also dandruff and dry scalp since before becoming hypothyroid. I had been using head and shoulders until recently to try and ease symptoms, however, this did not work. I was given the 'black tar' shampoo on prescription and this didn't work either. The last few weeks, my scalp has worsened with sore red patches and scabs, and itchiness and the horrible dandruff. It's been all over the news about the fake head and shoulders shampoo. I have now been given steroid preps for my scalp and have contacted my local trading standards re the shampoo. I still have it so hopefully they will be able to test it.
For everyone who has this problem with their scalp and skin, beware of fake shampoos. The head and shoulders fake version is so good, it has taken trading standards a wave of rigorous testing to pick this up.x