panothenic acid (vitamin B5) caused my hair to turn dry and brittle and some fall out.
i tried panothenic acid, 3 grams a day, to cure my acne and within 5 days my hair became very dry and very frizzy with some fall out. i researched this on acne forums and found a lot of the same feedback. it did make my skin a little less oily but the hair problems are not worth it to me. this is the only change i made so i believe it was the B5.