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Professional hair colours Goldwell Topchic 4NN medium brown extra. Topchic series, successful "2002 Stylist Choice Award" hair colour assortment award winner. The Topchic colour segment meets concrete, perfect colour wishes every time you want. The permanent alkaline hair colour for excellent colour results. Combined with hydrolysed wheat protein and panthenol, to strengthen and luminosity of the hair. Impeccable quality. Long-lasting colour retention. Accurate colour results. Perfect nuance. Formulated with Color Link, a patented technology that "connects" the colour molecules together. Its patented penetration system ensures an even distribution of colour from root to tip. 100% grey coverage. All Goldwell hair colours correspond to the Goldwell Master colour palette. All Topchic lotions and hair colour have been developed to work together in synergy and achieve perfect colour results. Topchic lotion ensures a perfect nuance, texture, pH, alkalinity of mixtures. Application: Apply to dry hair Topchic lotion. It is recommended to always wear gloves. Depending on your desired colour result, choose the appropriate lotion and mix loudly attracted mixing ratio: colour results topchic lotion/volume mixing ratio lotion: colour no whitening 10 vol. 3% 1:1 level brightening; grey coverage; same tone depth 20 vol. 6% 1:1, 2 levels of lightening (pitch 2-10), 30 vol. 9% 1:1 3-4 levels lightening (pitch 2-10) 40 vol. 12% 1:1 3-4 levels lightening (pitch 11-12 highlift colour) 30 vol. 9% 2:1 4-5 levels lightening (pitch 11-12 highlift colour) 40 vol. 12% 2:1 for 1 level lightening without pre-bleaching, apply additional blonding cream or blonding cream ash (cooler colour results). Blonding cream or blonding cream ash should not be used with the shades Highlift Series 12. To really make sure that your customer does not