In combination with Welloxon Perfect you get excellent, fully opaque and even results. Koleston Perfect Base & Welloxon Perfect (1:1). Special blonde colour shade ratio (1:2). Welloxon Perfect is the ideal partner for Koleston Perfect & Koleston Perfect Innosense, Illumina Color, Blondor and Magma, which ensures perfect colour development. Visit the relevant product pages to find out specific recommendations and mixing ratios for the product used. Brightening by three tone levels: 1 part Koleston Perfect, 1 part Welloxon Perfect 12 % brightening by two tone levels: 1 part Koleston Perfect, 1 part Welloxon Perfect 9 %, 1 tone lightening / grey/white coverage of the same level or darker: 1 part Koleston Perfect, 1 part Welloxon Perfect 6. % % Special Special Special de: 1 part Koleston Perfect, 2 parts Welloxon Perfect 9% for a brightening by three tones or 12% for a whitening by four/five tone levels