Barrier Products  Sodium Benzoate is a safe and commonly used preservative with anti-fungal agents and has effectiveness against bacteria Potassium Sorbate:  Potassium Sorbate is a safe and commonly used preservative that inhibits the growth of mold, yeast, and some bacteria. <   Starter Kit + Course Access Bundles Disclaimer:  It is your responsibility, not that of Girlz Ink to make sure performing lightening procedures is allowed and/or acceptable in your town, county or state. It is your responsibility and not that of Girlz Ink to make sure you are properly trained and skilled in this service. Starter Kit + Course Access Bundles DOWNLOAD PRODUCT SDS (SAFETY DATA SHEET)