The first step in Christophe Robin’s anti-pollution routine, this Purifying Mask with Thermal Mud draws out impurities and comforts stressed scalps as it treats dry ends. Use it as a weekly pre-shampoo treatment to promote healthy-looking, luminous hair.

This detoxifying pre-wash is powered by mineral-rich thermal mud to balance and purify your scalp, relieving the sensation of oily roots. An infusion of spirulina (a nutrient-rich marine algae) helps to support the effectiveness of your scalp’s barrier function, bolstering it against pollution and external aggressors for healthier-looking hair. Expect your scalp to be left feeling comfortable, your roots freshened and your hair soft, manageable and healthy-looking.