The "black ruby" hair color is emerging as one of the major red trends of the season, in a deep, dark, and ultra-glossy version. Ruby Noir is a deep, highly saturated red mixed with a brown or black ...

Zhaoming says to monitor how often you dye your hair carefully. “My advice is not to dye your hair more than once every three months, or no more than four times a year,” she says. “Reducing the ...