dales nails
Well-Known Member
As a rule when skin testing with wella I have always used darkest shade and 6% regardless of what shade I would be colouring there hair. My Insurance company has a new policy that you must skin test with whatever shade you would be using on the day of colouring. So if you were doing a regrowth with a high lift tint and 12% would you skin test with high lift and double 12%??? This might seem really dumb but I have never skin tested high lift before and wella guidelines are to always skin test with peroxide.