There are several ways you can help your dry hair with vinegar. Vinegar is a great conditioner and can improve cleanliness and shine. Just add 1 tablespoon vinegar to your hair as you rinse it. Keep a travel-size plastic bottle of vinegar in your shower for this purpose, and take one when you travel, too. Since dandruff can make your hair look dull, use vinegar to make dandruff disappear. Massage full-strength vinegar into your scalp several times a week before you shampoo. Or, a brief soak in vinegar and water before you shampoo can help control dandruff as well as remove the dulling buildup from sprays, shampoos, and conditioners.
Add 1/4 cup apple cider vinegar to a small basin of water and drape your hair into it. As an alternative, you can put the concoction in a spray bottle and apply it to your hair. A conditioner that controls dandruff and gives your hair a healthy shine can be made by mixing 2 cups water and 1/2 cup vinegar. Apply the conditioner after rinsing out your shampoo, and let it stay on your hair for a few minutes before rinsing thoroughly with water. If you need a stronger treatment for dandruff control, use this same method, but keep the rinse on your hair for 1 hour, covered with a shower cap. Then rinse it out. This vinegar rinse will also help control frizziness in dry or damaged hair.