Our formula is compatible with most prenatal and postnatal vitamins. Nutrafol Postpartum can help fill the gaps in nutrition after childbirth between prenatal formulas and postnatal needs with concentrated ingredients for hair growth focused on recovery through your postpartum transition. Just remember that Nutrafol Postpartum is for use after childbirth, not during pregnancy. If you have questions about making changes to your supplement routine, please consult with your doctor before starting any new dietary supplement.