Relevance of Sun Protection Factor claim
Review of a study with 60 different commercialsunscreen products from European market
KEYWORDS: In vivo SPF, claiming, variability, sunscreen products, sun protection.
ABSTRACT: This work attempts to compare the labeled SPF (Sun Protection Factor) afforded by 60 different sunscreen products from the European market in comparison with the in vivo SPF measured using international standard based on data published in a safety report. Using a statistical approach, it was demonstrated that in some cases, a significant difference appears between the both SPF values (i.e. labeled and measured) which could lead to be a shortcoming for consumer health and any further correlation with other SPF method.
It’s around the 60’s that for the first time