Reported advantages include helping balance the scalp’s pH, supporting natural shedding of dead skin cells, and possibly reducing the growth of fungi that can contribute to irritation. These claims are based on anecdotal observations rather than confirmed research, so they should be viewed with caution.

A review from 2022 suggested ACV may help with dry scalp, which is sometimes confused with dandruff due to similar symptoms, even though the causes are different. ACV has shown some antimicrobial and antifungal activity, but research indicates that it does not work on all microorganisms and that its effectiveness varies depending on dilution and type of organism. This shows why more studies are needed before recommending ACV as a reliable treatment for any scalp issue.

Despite the uncertainty, some people apply diluted ACV at home by mixing it with water, applying it to the scalp, leaving it for 15 minutes, then rinsing well. Anyone considering ACV should use a mild dilution, avoid eye contact, and discontinue use if irritation occurs. Consulting a healthcare professional is recommended, especially for those with existing skin conditions. While natural remedies can be appealing, understanding their limitations and using them safely is essential.