Klorane's Galangal Exfoliating and Treating Powder-Mask-Powder helps to effectively clean, exfoliate, and eliminate all types of dandruff, even the most persistent, from the first use. Klorane's Galangal Exfoliating and Treating Powder-Mask-Powder helps to effectively clean, exfoliate, and eliminate all types of dandruff, even the most persistent, from the first use. This powdered haircare routine with Galangal, a natural and scientifically-proven active ingredient that acts 4 times faster than Zinc Pyrithione, immediately soothes, durably rebalances the scalp and prevents the reappearance of dandruff for up to 4 weeks. When in contact with water, this innovative powder with its gentle exfoliating grains transforms into a creamy lather that, once rinsed, leaves the hair soft, healthy-looking and free of dandruff. Use only for one-month, 2 sachets per week in replacement of your shampoo and care. Follow up with our matching Anti-dandruff shampoo for regular use to help maintain dandruff