Yes. Apple Cider Vinegar (ACV) is highly effective for scalp health because it is naturally anti-fungal and antibacterial. Dandruff is often caused by an overgrowth of yeast-like fungus (Malassezia), and the acetic acid in vinegar helps neutralize this while balancing the pH of your scalp. Use one part ACV to 3 parts water and pour over scalp after shampooing. Let it soak into the scalp for 2-3 minutes before rinsing. Use once a week so that the ACV doesn’t over-dry your hair.