Hair colour has always been about reinvention. A brighter blonde. A deeper burgundy. Seamless grey coverage. But beneath this visible transformation lies a less visible process, one driven largely by ...

Hair dye is a chemical product for treating her, with each combination of chemicals creating a specific color. If these chemicals go bad in some way, the color doesn’t turn out as planned. To help ...

The term 'chemical-free' in hair colour is often misunderstood by consumers. Many products contain harsh chemicals like ...

Consumer Reports conducted its first-ever tests of hair dye for contamination—we tested them for looks in 2020—and found contaminants in all of them. They pose risks for skin irritation, and studies ...