optiphen™ po preservative contains the antimicrobial active phenoxyethanol. It is a well known active with good market reputation and global approval. The excellent pH compatibility allows its use in acidic and even alkaline formulations as well as a variety of other cosmetic formulations. It can be used alone and functions synergistically with other preservatives. optiphen™ po preservative is applicable for use in a variety of rinse off personal care preparations such as shampoos and conditioners. It is also well-suited for care-cosmetics like creams, emulsions, lotions, wet wipes, and gels.