Head & Shoulders® Apple Cider Vinegar 2-in-1 formula. This shampoo-and-conditioner duo is clinically proven to provide up to 100% dandruff protection* while clarifying your scalp and restoring shine to your hair. Considered one of the best natural remedies for dandruff as well as one of the best natural remedies for dry hair and scalp, apple cider vinegar works to remove impurities, excess oils and build-up. This 2-in-1 formula clarifies the scalp to reveal healthy hair that shines all day long.