Instead, these are hair dyes uniquely formulated for graying and meant to return you to your previously natural color.

One user writes: "The best hair dye I've used. Color is long-lasting and nourishes the hair. I have dirty blonde/brown hair and the majority of the colors show up without the use of bleach.

And the dye washed out in 3 washes." Esti S agrees: "Given what harsh chemicals tend to be in hair dye I certainly wouldn't let my kids near it until they are teenagers. "Yes it's fun and hair grows ...

Among the personalized dyes, it concealed grays best (though not as well as traditional boxed hair color) and faded the least in Lab measurements on hair samples. Many testers noted that applying ...

We've found the best box hair dyes to try this spring, and they're really, really good. These semi-permanent hair dye and permanent hair color options will take your locks from color treated hair ...

Children's lives could be at risk because some hairdressing salons are not following guidelines on hair dye products, BBC Wales has found. No dye products should be used on under-16s, according to ...