Hi I’ve just discovered I have an allergy to PPD after not dying hair with a permanent dye for 4 years. I had been using a Wella demi permanent in 2019 no problem but just done a skin test and had redness rash and itching. I have about 10 to 15 percent grey. Has anyone had lowlights or similar at a salon using a technique where dye doesn’t touch the skin and also anyone tried Josh Wood ? Does Josh Wood colour give a root line when it grows out or does it fade ? I can’t be bothered with redoing roots regularly and this was the appeal of the Demi permanent. I’ve used Tints of Nature semi permanent but it washes out too quickly. I’ve also used Patrice Mulatto One which is good but very expensive for me as I need two boxes and they are £25 each. It also only colours my grey a shade lighter which I suspect most PPD free colours will do as PPD is the chemical that fixes the colour. I know that Wella ME plus uses a similar chemical PTD that some people who are allergic manage to tolerate but I’m reluctant to have a whole head of permanent colour again.