Vitamins and related substances in skin health: Use and restrictions in pregnancy.

Vitamins are vital components of skin health and have well-established utility in managing various dermatologic conditions. Vitamin toxicity and deficiency can lead to multisystem effects, and there are additional concerns about adverse effects on the fetus in pregnancy. It is critically essential for dermatologists to be aware of the recommended dosage of vitamin supplementation in pregnancy to avoid toxicity and teratogenicity. We have reviewed the use of vitamins in treating dermatologic conditions during pregnancy and the maternal and fetal adverse effects associated with vitamin excess and deficiency.