Based on my overnight experiment, apple cider vinegar proved to be an effective treatment for enhancing hair shine and improving scalp health. Its natural properties and affordability make it an attractive option for those looking to revitalize their hair without resorting to harsh chemicals. However, as with any treatment, it’s important to use it wisely and in moderation to avoid potential downsides. Overall, ACV is worth considering as part of a balanced hair care regimen.