“Everyone has hair that grows at different speeds and has different amounts of gray,” says Gutkin. “But 4 to 6 weeks is the average time suggested between colors.” Pro tip: If you’re ...

Going gray doesn't mean you're old, and it doesn't mean you don't have options for your hair color either. At least not these ...

This melanin also colors ... red hair, and eumelanin, which makes darker hair. The balance between these types of melanin is regulated by more than 100 genes. How hair color varies in different ...