Four Reasons Color Mask Toning Treatment Light Lavender is a toning treatment, which color pigments give a light lavender tone for hair, prevents yellow tones and maintains the hair color. Plant-based proteins and amino acids strengthen hair and give amazing shine. Hair color stays vibrant and hair becomes healthy and conditioned. Use: Apply evenly to washed, towel-dried hair. Comb through and leave in for 5-10 min. depending on the desired intensity. Rinse carefully. Use instead of a regular conditioner whenever your hair color needs to be refreshed. Note that your hair’s porosity, condition and current shade affect the result’s evenness.