So by taking a birth control and side effects such as hair loss do occur, if I took a vitamin that increases hair growth and is known to work pretty well.. Would my hair loss stop and actually regrow or will the vitamins have no effect?

I have no idea what vitamins you’re taking, but if your birth control is causing hair loss, I’d doubt there’s a vitamin to counteract that. Not all women will experience hair loss from birth control, so if you’re speaking in hypotheticals it might not even be an issue. Talk to your doctor.
