Can i take biotin/keratin with birth control pills? also what is a good dosage?

Probably harmless: There is no information that biotin or keratin interact in a harmful way with birth control pills. We get biotin in whole grain bread and cereals, eggs, dairy products, nuts, dairy products and chicken. Keratin is found in skin, hair, teeth and nails. It is a protein and taking it as a supplement can lead to excess protein in the body and urine. I would save my money and focus on healthy diet.