Background: High sun protection factor (SPF) sunscreens have multiple benefits but there has not been validation of the test method for determining SPF values higher than 50. This study addresses specifically the accuracy and reproducibility of the high SPF test.
Methods: Two high SPF formulations with a standard reference (SPF 15) were tested at four independent test facilities according to the 2007 FDA proposed amendments to the sunscreen monograph. Statistical analysis was performed to compare the SPF results within each lab as well as the SPF results between different labs.
Results: ...
Multi-laboratory validation of very high sun protection factor values is a post from: Skincare
Multi-laboratory validation of very high sun protection factor values via BuzzBlazer.com
No comments:
Post a Comment