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The perplexing dilemma of measuring sun protection factors
Author(s) -
Pissavini M.,
Diffey B.,
Doucet O.
Publication year - 2017
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.12396
Subject(s) - dilemma , sun protection factor , philosophy , epistemology , product (mathematics) , mathematics , medicine , geometry , dermatology
Truth, like knowledge, is surprisingly difficult to define. Indeed, every definition of truth that philosophers have developed falls prey to the question, ‘Is it true?’ In this essay, we consider what is the true SPF of a sunscreen product and whether it can ever be realizable.