All four active ingredients of sunscreen were found in blood samples at levels exceeding the threshold recommended for toxicology testing.
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‘Results of a randomized trial proved that the quantity of active ingredients in sunscreens are above the threshold level. Regulating the quantity of such ingredients is the need of the hour.’
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Researchers report that all four active ingredients were found in blood samples at levels exceeding the threshold recommended for toxicology testing. The effect of these concentrations is unknown and further studies are needed to determine the clinical significance of these findings. Read More..
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Some limitations of this clinical trial include that it was conducted under indoor conditions without exposure to heat, sunlight or humidity, which may affect the rate of sunscreen absorption, and the study wasn't designed to look at differences in absorption by the type of sunscreen formulation, skin type or age of the user.
Researchers emphasize that their results don't suggest people refrain from using sunscreen, which prevents skin damage.
Source-Eurekalert