Abstract
Sun Protection Factors in Evaluation of Sunscreen Potency: The Persistent Pigment Darkening Method The Persistent Pigment Darkening (PPD) method has been modified by Bissonette et al. as an in vivo assay for UVA exposure. This is the gold standard with which to compare many other methods that assay the potency of sunscreens that block UVA damage. In view of the current interest in evaluation of sun protection factors (SPF), it is important to ensure the validity of current methodology used to evaluate UVB and UVA exposure before meaningful evaluation of sun protection factors and potency of sunscreens against UVinduced damage can be made.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.