Hi, I have a client who isn’t a regular client,but often pops into the salon for her hair cut. On her last visit she asked to have a skin test for a permanent colour we did the routine skin test and explained about what to look for. The following week she rang to explain that at the end of the (48 hr) skin test she started to itch and blister we performed the test on the fore arm instead of behind her ear. It goes to show that the 48 hr test is crucial and not to be mis understood by 24 hrs which I know some salons do. How ever now the client concerned is wanting other options to Colour are there any vegetable based colour products out there or any other options.