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Although the risk of developing new allergy is reduced, there remains a risk of allergic reaction that can be severe. Always ask your stylist to perform an Allergy Alert Test 48h before each colouration. Strictly follow safety instructions and consult www.wella.com/kolestonperfect. If you have ever experienced an allergic reaction to hair colourants, you should not colour. ME+ is present in specific shades of Pure Naturals, Rich Naturals, Vibrant Reds, Special Blondes and Deep Browns of the Koleston Perfect brand.
** Versus previous Koleston Perfect. Valid for Koleston Perfect with Pure Balance Technology.