Determining the Stability of Free Formaldehyde Preservatives in Personal Care Formulations.

As scrutiny of formaldehyde-donor (FD) and other preservative technologies has increased in recent years, additional assurances of the relative safety and benefits of FD technologies are required. This study examines the effects of temperature and pH on free-formaldehyde levels as detected by C-13 NMR in water and personal care formulations. [ABSTRACT FROM AUTHOR]