Cade Sage Rhassoul anti-dandruff shampoo by C'bio has been specially studied to combat dryness of the scalp, itching and dandruff, in a natural and non-aggressive way. This shampoo is very concentrated, a small amount is enough to wash an average hair. Thanks to the properties of cade oil, combined with those of rhassoul (clay) and the sage essential oil it contains, this shampoo helps to fight against dandruff and itching and helps the scalp to regain its balanced. It is recommended to shake the bottle before use. Apply to wet hair, massage gently, leave on for a few minutes then rinse thoroughly. Repeat if necessary. Use this shampoo 2 or 3 times a week, possibly alternating with our frequent use shampoo or with our oily hair shampoo, depending on the usual frequency of hair washing and depending on the nature of the hair. Once the hair is sanitized, it is advisable to continue using this shampoo about once a week for a few weeks for lasting results. This product can be used for 12 months after opening the bottle.