René Furterer Okara Color, 100 ml, Hair Masks for Women, The René Furterer Okara Color hair mask is an essential step in your hair care ritual. Give it a moment to regenerate and it will repay you with vitality and beauty. Characteristics: regenerates the hair along its entire length extends the life of hair dye makes it easy to comb through and prevents damage How to use: Wash with shampoo, then apply to damp hair. Leave to act as instructed on the packaging, then rinse thoroughly.