Apple cider vinegar (ACV) has become a popular addition to natural hair-care routines because of its potential to improve hair appearance and scalp freshness. When properly diluted with water, its mild acidity may help smooth the hair’s outer cuticle, leaving strands looking shinier, feeling softer, and appearing healthier. It may also help remove residue left behind by shampoos, conditioners, and styling products that can make hair look dull or feel heavy.

Another potential benefit of ACV is that it may help the scalp feel cleaner by removing excess oil and product buildup. Some people also use diluted ACV rinses to help manage scalp itchiness, dandruff, and frizz. By helping the hair surface lie flatter, it may make strands easier to manage and style. However, results vary from person to person, and ACV is not a proven treatment for every scalp condition.

For safe use, always dilute apple cider vinegar with water and never apply it directly to the scalp. Leaving it on overnight is unnecessary and may increase the risk of irritation, especially for people with sensitive skin. If you experience burning, redness, or itching, rinse it out immediately and stop using it. Overall, ACV may be a useful occasional addition to your hair-care routine, but gentle application and realistic expectations are essential for keeping your hair and scalp comfortable and healthy.