Boots Ingredients Moisture Mask With Hyaluronic Acid 200 ml. Great for dry, brittle, dull hair. What is it? This hair mask contains hyaluronic acid and cold pressed extra virgin chai seed oil which helps to replenish lost moisture. What is it good for? – Dry and brittle hair feels hydrated, strong and looks healthy – Helps to reduce frizz – Hair looks revitalised, silky and shiny – 100% Vegan How to use Once or twice a week after shampooing, apply to clean wet hair and comb through. Leave on for 5-10 minutes. Rinse out thoroughly.