Softness & brightness Fanola's Wonder No Yellow Mask is formulated with violet pigments and is suitable for blonde, bleached and grey hair. The effects of the sun, environmental influences and utilising styling tools on a daily basis can affect the hair's level of shine and result in blonde hair taking on a yellowish tinge. The mask neutralises unwanted yellow undertones whilst prolonging the effectiveness of the Wonder No Yellow Shampoo. For softer, moisturised and shiny hair with a balanced, cool-tone finish. Application: It is advised to wear gloves when using this product. Apply to damp hair after shampooing with Wonder No Yellow Shampoo. Leave it on the lengths and ends of the hair for 3 - 5 minutes then rinse.