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sun protection factor


Definition: the ratio of the minimal ultraviolet dose required to produce erythema with and without a sunscreen; highly effective sunscreens have an SPF of 15 or higher.

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.

© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review date: Sep 19, 2016.