Salon Hair Dye

Hair Dye Allergies: Why Don't We Bother With Patch Tests?

Hattie Crisell | Posted 17.03.2012 | UK Lifestyle
Hattie Crisell

Until recently, I thought that patch tests - when a hairdresser tests a dye on a small patch of your skin, at least 48 hours before you dye your hair, in order to check for reactions - were an urban myth.