Bioderma Nodé K, 100 ml, Hair Masks for Women, The Bioderma Nodé 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: protects against harmful environmental effects soothes the scalp gets rid of dandruff How to use: Apply to a dry scalp and massage gently. Leave to act as instructed on the packaging, then rinse thoroughly. Then rinse thoroughly with water. Wash thoroughly with shampoo afterwards.