Below, explore the best brightening serums that will transform your skin and reveal a lit-from-within-glow. 1. Versed Sunday Morning Antioxidant Oil-Serum. ... 2. SkinCeuticals C E Ferulic Serum. ... 3. CeraVe Skin Renewing Vitamin C Serum. ... 4. Glytone Age-Defying Vitamin C&E Serum. ... 5. Obagi Professional-C Serum 15%