Lastly (I promise) don't take an isolated supplement of pure biotin, this can upset a balance with your b vitamins as it may possibly compete with B5 and cause more skin problems, if you take a B vitamin, make sure it's a
whole food B
complex vitamin, and again, do supplement with B12 either in this
form or with a pure vitamin B12 supplement which you may only need once a week as a rule if it's a high enough amount — I use Garden of Life's B12 spray).