When used in a serum, ferulic acid stabilizes vitamin C - preventing it from oxidizing and degrading. Ferulic acid powder is generally used in a 1% solution and dissolved in an alcohol base to prevent clouding before use.
Many of our customers mix it with our Vitamin C Powder or Hyaluronic Acid Powder to create a fresh, professional quality serum.

Bos essentials' Vitamin C, Hyaluronic Acid, and Ferulic Acid Serum Instructions
In 4 tablespoons of water, add:
Between ½ and 2 tablespoons Bos Essentials Vitamin C Powder (for a 5-20% Vitamin C solution – see instructions on vitamin C product page)
A few drops of Bos Essentials Ferulic Acid Powder dissolved in an alcohol base (helps to stabilize vitamin C and adds additional antioxidant properties)
½ teaspoon Bos Essentials Hyaluronic Acid Powder (add only when the rest of the ingredients are fully dissolved)
Refrigerate until gelled, spot test for sensitivity, and apply daily prior to the rest of your beauty routine.