Stripping permanent hair color that you don’t like at home can be tricky. But you can buy commercial hair strippers or try homemade solutions to help the color fade enough so that you can re-dye it.

L'Oréal is putting its tech face forward, unveiling the My Skin Track pH by La Roche-Posay at the Consumer Electronics Show. While the company launched a sun sensor last year, this new wearable (and ...