Forget harsh bleach—scientists have discovered that powerful blue LED light can erase yellow stains from sweat, food, and oils without harming delicate fabrics like silk. By harnessing oxygen in the air as a natural oxidizer, the technique breaks down stubborn pigments such as beta carotene and lycopene, outshining hydrogen peroxide and even UV treatments.
Source: https://www.sciencedaily.com/releases/2 ... 031515.htm
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