You might have come across articles saying that the LED light bulb emits blue light which causes a myriad of harmful effects including damage to the retina, macular degeneration and disturbed sleep ...
In a study published in ACS Sustainable Chemistry & Engineering, researchers describe a simple method for removing yellow stains with a high-intensity blue LED light. They demonstrate the method's ...
“My skin already looks refreshed and my fine lines seem to disappear." ...
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