Tortoise-shell accouterments – hair combs, clips, barrettes, earrings, bracelets and even eyeglass frames – have been around, yawn, a long, long time. But until quite recently, tortoise shell ...

The shell is covered in a layer of scutes, which are made of keratin, the same protein that makes up human hair ... tortoise shells make them a sought-after material for crafting items like combs ...

Just when you thought you'd differentiated the sombré from the balayage, a new hair trend has made it's way onto the scene. It's called Ecaille, or tortoise shell in French. The technique is a ...