Apple cider vinegar clarifies and exfoliates your scalp, removing dead skin as well as product buildup that blocks the pores on your scalp.Apple cider vinegar also contains nutrients (vitamins B, C, and potassium), which are beneficial for your hair.Apple cider vinegar helps prevent fungal and bacteria growth and keeps the hair and scalp healthy. It is anti-inflammatory and can help with dandruff and hair loss, since the underlying cause is often bacteria.While ACV cannot lower the natural porosity of your hair or repair holes in the cuticle layer caused by heat or chemical damage, it flattens the hair cuticle to mitigate the effects of high porosity hair. This makes your hair smoother and easier to detangle, shinier, less frizzy, less prone to breakage, and more moisturized. By lowering the pH of your scalp, ACV flattens and closes the hair cuticle. Apple cider vinegar balances hair and scalp pH.