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 ...

Here’s what the research suggests about the link between hair dye and cancer. Credit...Joyce Lee for The New York Times Supported by By Rachel Rabkin Peachman Q. I color my hair regularly, but I’ve ...

At-home tips from a model, an artist and a professional colorist. By Kari Molvar Beauty School answers common beauty questions with help from creative people who’ve become experts on the job. Sign up ...