Clairol Premium CremeClairol Professional developed Premium Creme for quick, accurate shade selection and easy, reliable custom formulation. The 46 shades are divided into 9 Tonal Pillars. Each Pillar is:Based on the standard, universally accepted Level and Tone system. Calibrated, providing flexibility to intermix* shades within a Tonal Pillar, or between Tonal Pillars, with predictable results. Offers less experienced colorists perfect shade choices without intermixing. Provides pure-tone flexibility and complete gray coverage. Gives all stylists the confidence to create custom colors. Covers gray completely, even resistant gray.