Hair vitamins and birth control

Hi girls,i need help,i want to take hair vitamins because i need my hair to get healthy so i wanna take Viviscal,but one of the vitamins that viviscal has is Vitamin C and I'm scared to take it because I'm on birth control and I heard that you can't take vitamin c during birth control because is not gonna work the same way,so I need help,what should i do?