Journal of the American Academy of Dermatology
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J. Am. Acad. Dermatol. · Apr 2020
Randomized Controlled TrialGreater efficacy of SPF 100+ sunscreen compared with SPF 50+ in sunburn prevention during 5 consecutive days of sunlight exposure: A randomized, double-blind clinical trial.
Beach vacations are high-risk settings for overexposure to ultraviolet radiation. ⋯ SPF 100+ was significantly more effective in protecting against ultraviolet radiation-induced erythema and sunburn than SPF 50+ in actual use in a beach vacation setting.