Yes, benzocaine does cross the placenta. Benzocaine is a local anesthetic that has been found to be absorbed into the bloodstream after topical application, and research suggests it can cross through the placenta from mother to baby. However, it should be noted that this absorption of benzocaine into the bloodstream occurs in very small amounts and is not thought to cause any harm or negative side effects for either mother or baby. It is important to discuss any potential risks with your doctor before using products containing benzocaine while pregnant or breastfeeding.