Hair Diagnostic Tool | Find your Haircare Routine | Kérastase UK
E-diagnostic Kérastase ≡ SEPHORA
L'Oréal Groupe on Twitter: "@VivaTech Discover the new Kérastase personal diagnostic for scalp & hair fiber quality, based on a combination of a mobile application & a camera! https://t.co/9l2JTvoZTw" / Twitter