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A group of researchers from the University of Malaga (UMA) in Spain, said that sunscreens are effective five minutes after their application on the skin.
With these results of this research, the theory about the need to apply cream half an hour before sunbathing is denied, stated in a statement from the institution.
UMA photoprotection specialists, led by Enrique Herrera, used in vitro techniques in the laboratory, from where they followed the evolution of the cream by solar simulation, through spectral transmission measurements at different times: at the first minute, at five, after 10 minutes and after half an hour
In this first phase, the experts pointed out that the formula of the protectors is stabilized and the photoprotection is homogeneous and stable at five minutes of its application.
In addition, they transferred these initial results to a study with volunteers, using photographic techniques with flash ultraviolet emission in specific areas of the back.
"The conclusions were They also recommended the application of a high-protection sunscreen every two hours because the amount normally used is not recommended. The good one (two milligrams per square centimeter of skin) and its distribution is not usually good.
Last summer, UMA researchers, María Victoria de Gálvez and José Aguilera, in collaboration with the Foundation Piel Sana of the Spanish Academy of Dermatology, developed the UV-DERMA mobile application, which calculates the time it takes to burn the skin when tanning.
After its success, with nearly 45,000 downloads, at the end of July will launch a new version translated
The researchers said that sunscreens are effective.Five minutes after application to the skin (ARCHIVE)
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