BACKGROUNDSunscreen is one among a number of methods to protect the skin against ultraviolet (UV) radiation from the sun, which is the primary cause of skin cancer. To be effective, sunscreen must be applied in a adequate quantity on all exposed body sites, and studies have documented that sunscreen users often gain insufficient protection resulting in sunburn. When determining the sunscreen protection factor (SPF), a quantity of 2 mg/cm2 is applied, but in real life only, 0.5‐1.0 mg/cm2 is used, which may be one of the explanations for inadequate protection. Another reason could be that certain exposed skin areas are left without sunscreen. Repeated application of sunscreen has been recommended to address these problems.Studies have found relations between time spent on tooth brushing and plaque control and furthermore between time spent on washing hands and reduction in number of bacteria. No study to date has investigated a possible relation between time spent on sunscreen application and the amount of sunscreen applied.Our study aimed to determine whether time spent on sunscreen application is related to the amount of sunscreen applied during a first and a second application. If there is in fact a relation between time spent on application of sunscreen and
Photodermatology, Photoimmunology & Photomedicine – Wiley
Published: Jan 1, 2018
Keywords: ; ;
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