Keratin is the main structural protein of the hair, which provides your hair shaft with its shape and strength. Dandruff is the result of a fungus called Malassezia that causes visible flakes, itchy scalp and hair loss. Hair Clinic eKeratin Anti-Dandruff Moisturizing Conditioner combines the powerful anti-dandruff properties of Zinc Pyrithione with Keratin to reduce flaking and itching while conditioning and maintaining the scalp’s natural oils and moisture level to leave the hair shiny, bouncy and silky.