hair services

laboratory testing

Photo Stability and SPF Determination of Sunscreens

The efficacy and performance of sunscreen activity is studied through a number of techniques specific to the
active and substrate. SPF determination can also be done using the standard COLIPA method.

Two different sunscreen formulations were compared to assess photostability. Encapsulated UV filters showed higher stability compared to the “free” UV filters after various UV exposure timepoints.

(609) 430 4820

601 Prospect Avenue
Princeton, NJ 08540

@2019 by TRI Princeton.

Website by ISM

TRI is a 501(c)3 corporation.

Please contact us regarding sponsorship and membership.