L'Oreal Professionnel Source De Richesse Shampoo & Mask Aux Huiles for Rebellious & Unruly Hair is a nourishing and shine enhancing hair care routine. Created to help nourish the hair shaft from deep within and prevent damage. Leaves hair full of shine and easier to manage. Infuses hair with essential oils. Created with castor oil and salicylic acid. This is safe for those with color treated hair. How to use - Apply shampoo to wet hair. Massage well and lather. Repeat if necessary. Once a week apply mask to damp hair. Apply from roots to ends. Leave on for 10 minutes and rinse.