Sombrilla vs Filtro... ambos!
El uso del filtro solar previene más las quemaduras por sol que el estar bajo la sombra, pero lo ideal son ambos...
Original Investigation
March 2017
Sun Protection by Beach Umbrella vs Sunscreen With a High Sun Protection FactorA Randomized Clinical Trial
Hao Ou-Yang, PhD1; Lily I. Jiang, PhD2; Karen Meyer, BS1; et alSteve Q. Wang, MD3; Aaron S. Farberg, MD4; Darrell S. Rigel, MD5
JAMA Dermatol. 2017;153(3):304-308. doi:10.1001/jamadermatol.2016.4922
Full Text
Key Points
Questions How well does typical shade from a beach umbrella protect against sunburn and how does it compare with protection provided by sunscreen with a high SPF?
Findings This single-center, randomized clinical study found that, during 3½ hours of sun exposure, 78% of participants under shade from a beach umbrella developed a sunburn vs 25% of participants using sunscreen. Neither shade nor sunscreen alone completely prevented sunburn.
Meaning Shade from a beach umbrella alone does not provide sufficient protection for extended exposure to UV rays; indicating a combination approach may be needed for optimal protection from UV rays.
posted by dermatica at
March 09, 2017
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