For women who do not want to look like their hair is colored, nothing is worse than chestnut hair turning mahogany. Brown hair takes on undesirable red and mahogany tints and becomes dull with time. The nourishing ingredients of this product--almond butter and buriti oil--combined with an acidic pH of 4. 5 minimize porosity, nourish your hair, fix pigments and evenly distribute color. Licorice extracts and the selection of cool pigments neutralize the effects of oxidation and yellowing, restoring the ash tones in your hair. Formulated without parabens, sodium laureth sulfate, silicones, ammonia or oxidants. To use: Wash your hair with the Clarifying Shampoo with Chamomile and Cornflower to reset the hair fiber. Squeeze your hair with a towel and then apply the Shade Variation Care mask. Massage and leave for 530 minutes depending on the desired intensity. Rinse thoroughly. Note: For the first application, leave the product in for only five minutes so that you can evaluate how well the pigment takes to your hair. Color will fade in 35 shampoos.