In-Use Test of a Cosmetic Product in Subjects With Chronically Itchy Scalp

Inclusion Criteria: * age: ≥ 18 years * with chronically itchy scalp * normal to dry scalp or scalp prone to neurodermatitis Exclusion Criteria: * any deviation from the above-mentioned criteria * users of sour hair conditioner * subjects who wash their hair more than once a day * other dermatological disorders (scars, moles) on the scalp * known incompatibilities to cosmetics and ingredients of cosmetic test products (please see INCI) * topical medication in the test area within 1 month prior to study start * systemic medication with anti-inflammatory agents and antibiotics within two weeks prior to starting of the study * systemic medication with retinoids, antihistamines and/or immunomodulators (e.g. cortisone, corticosterone, chemotherapeutic agents) within four weeks prior to starting of the study * severe internistic disease that leads to pruritus