Skinceuticals serum 10 is ideal for sensitive skin types or conditions as it neutralizes free radicals defends against environmental damage and helps prevent signs of premature ageing now formulated with aox advanced antioxidant technology this lightweight fast absorbing serum combines ferulic acid with 10 pure vitamin c to enhance antioxidant performance skinceuticals serum 10 uses duke patented vitamin c technology formulated at the precise ph and concentration shown to deliver effecti