There is no such thing as 100% natural permanent hair color. The formula has to contain synthetic ingredients in order to achieve lasting results. Naturtint’s hair colors are up to 92% naturally derived using the global ISO 16128 standard which defines naturally derived as plant or mineral-derived materials and water that have undergone limited processing, but like other permanent hair colors, they contain ingredients that could cause allergic reactions in certain individuals. Please perform a skin sensitivity test 48 hours before coloring to decide if Naturtint permanent hair color is right for you.
Please also read:
Hair Color WARNINGS & CAUTIONS!
How to perform a Sensitivity Test.
How to perform a Color Strand Test.
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