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A novel proposal for labelling sunscreens based on compliance and performance
Author(s) -
Pissavini M.,
Doucet O.,
Diffey B.
Publication year - 2013
Publication title -
international journal of cosmetic science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.532
H-Index - 62
eISSN - 1468-2494
pISSN - 0142-5463
DOI - 10.1111/ics.12074
Subject(s) - sun protection factor , photoprotection , sunscreening agents , labelling , compliance (psychology) , computer science , measure (data warehouse) , biochemical engineering , medicine , chemistry , dermatology , psychology , engineering , data mining , photosynthesis , cancer , skin cancer , social psychology , biochemistry
Synopsis Objective To propose a new way of classifying sunscreens, which combines the labelled SPF with an objective measure of compliance. Methods The in vitro determination of uniformity of sunscreen application was combined with an in vivo measure of applied thickness to derive a Compliance Factor for each of 10 sunscreens. Results The predicted SPF resulting from real‐life application of each sunscreen product, which is termed the SPF in vivo veritas , was calculated from the Compliance Factor and the labelled SPF . It was shown that for a number of products, there is expected to be a significant mismatch between labelled and delivered SPF . Conclusion We believe that by adopting our proposal, consumers would be given more appropriate guidance on the delivered photoprotection they can expect to receive than relying solely on the labelled SPF .