OLAPLEXWEIGHTLESS NOURISHING MASK Description: Volumizing and strengthening hair mask specially formulated for fine hair. Directions for use: After shampooing, apply the mask generously to hair, focusing on the lengths and ends. Leave on for 3-5 minutes. Rinse. For best results, use the product weekly. Ingredients: Aqua (water), cetyl alcohol, polyquaternium-37, cetearyl alcohol, behentrimonium chloride, propanediol, hydroge