We are presenting the highly-rated vitamin C serum for the face is the C-E Ferulic serum from Skin Ceuticals. It contains 15% L-ascorbic acid, vitamin E, and ferulic acid to protect against environmental damage and improve the appearance of fine lines and wrinkles. Other popular options include the Vitamin C Suspension 23% + HA Spheres 2% from The Ordinary and the Skin Vitamin C Serum.