organ meats [liver, kidney]
nuts, like almonds, peanuts, pecans, and walnuts
whole grains and cereals
Because food-processing techniques like cooking can render Biotin ineffective, raw or less-processed versions of these foods contain more active Biotin.
You will find good amount of Biotin from B Complex Tablets as well as from MultiVitamin Tablets.
So Have you checked your Hair Health!