Typically, the United States Pharmacopeia (USP) method <51> is used for aqueous-based Compendia Product Categories I (injectable/parenteral products), II (topical products), III (oral products) and IV (antacid products). For water-based cosmetic and toiletry formulations, the CTFA method M-3 is frequently used.

ATS Labs has extensive experience with developing and evaluating preservative systems for a diverse range of product formulations. We welcome the opportunity to put that experience to work for you.