What is the Bio Barrier Effect? It provides a protection shield by creating a barrier on the hair surface. It relaxes the scalp and minimizes the itching problem in the hair. It prevents the dull appearance of the hair and makes it look more vibrant. Anti-Dandruff: With Zinc Pyrithione in its content, it acts on the source of dandruff formation from the first wash and prevents 100% visible dandruff formation in regular use. With its special salt-free formula, it cleans the scalp and hair without damaging them. Contains Keratin and Biotin B7.