Normally the scalp is exfoliated every 20-30 days. Various factors, however, such as hormonal imbalances, stress, pollution, mechanical or chemical effects and unsuitable shampoos unbalance the scalp flora and help the microorganism Malassezia furfur develop, causing inflammation and intensive exfoliation. The main drastic ingredient of the line, the celery seed natural extract, with its clinically proven action, hinders the development of Malassezia furfur yeast and reduces flakes within the very first weeks. Do make sure to use the APIVITA Shampoo for Dry Scalp. Treats dryness effectively, cleans and soothes itching and irritations of the scalp.