Those dandruff flare-ups are actually caused by fungus, say researchers at China’s Jilin University.
It’s true; mouthwash can cure dandruff! That’s because thymol (a key ingredient in Listerine) destroys 24 strains of fungi. Thymol even kills the drug-resistant fungi that dandruff shampoos have trouble taming. Just pour 1/4 cup of Listerine onto damp hair, massage thoroughly into your scalp, wait five minutes and then rinse and shampoo as usual. Repeat daily until the flaking disappears.