Ferulic acid can be used every day as a part of your morning skincare regimen. To get the most ferulic acid benefits, it is recommended to apply formulas containing this ingredient to neutralize free radicals the skin is exposed to during the day. Ferulic acid can be found in best-selling SkinCeuticals products that include C E Ferulic with 15% L-ascorbic Acid and Phloretin CF with Ferulic Acid and Silymarin CF