Ultra Violet Neutralisers, it works to neutralise brassy and yellow undertones, for a cool, bright blonde or silver color. With its rich, ultraviolet cream texture, this Hyaluronic Acid hair mask deeply reconstructs hair. It also contains Edelweiss Flowers Extract, and the two ingredients act together to nourish and restore the fiber of grey, white, silver or lightened hair. Ideal for lightened, highlighted cool blonde hair in need of neutralisation, this rich purple mask removes unwanted yellow undertones and brassiness, while deeply hydrating and restoring hair strands. The formula soothes hair, protecting it from daily oxidation and pollution particles. This non-staining hair mask can be used once a week, or as often as needed to neutralise brassy tones and keep your blonde hair luminous and cool. *Allergy alert test before use.