Benzoyl peroxide has been proven in clinical studies to be safe to use
during pregnancy. There are a few anti-
acne medications, such as Tetracycline, Salicylic Acid, Tretinon, and Isotrentinoin that either are known to be harmful during pregnancy or have not been fully tested as to their effects on pregnant women. Of course, you should always check with your health care provider before using any medications while pregnant, whether they are over-the-counter or prescription.