Optiphen ND is a preservative of the optiphen family. It's a very mild, broad spectrum preservative consisting of phenoxyethanol, benzoic acid, and dehydroacetic acid. Completely paraben and formaldahyde free. This preservative works best in surfactant based systems, shampoos, conditioners, gels, creams, and lotions. It's meant for use in products that contain water. For Optiphen ND to be fully effective the pH of your final product should be below 6 and it should be added to your product at temperatures below 176°F. Recommended usage rate is 1%.
INCI: Phenoxyethanol (and) Benzoic Acid (and) Dehydroacetic Acid