The perplexing dilemma of measuring sun protection factors.

Int J Cosmet Sci

Coty Lancaster SAM, International Research & Development Center, Athos Palace, 2, rue de la Lujerneta, MC98000, Monaco.

Published: August 2017

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.

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http://dx.doi.org/10.1111/ics.12396DOI Listing

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