This is a wonderful product to keep the vanillin in your fragrance oil from turning soap that brown color. Directions will be on the bottle for easy reference. Directions: For fragrances 3% and below, you will mix 1 part stabilizer to 2 parts fragrance oil. For fragrance oils above 4% and above use 1 part fragrance oil to 1 part stabilizer. Photo is a representation of a soap made 8 months prior with a fragrance oil with a 12% Vanillin content, and made according to directions. This product is good in CP, MP, and other bath and body products. However has not been tested in HP, but will post results when I have them.