The Biossance Squalane + Vitamin C Dark Spot Serum combines squalane, a pregnancy-safe moisturizer, with a stable form of Vitamin C (10% 3-O-Ethyl Ascorbic Acid), which is safe for brightening skin and reducing dark spots. However, as with any skincare product, it's always best to consult with your dermatologist to ensure it aligns with your specific needs during pregnancy.