No, vinegar is an acidic substance that is harmful to hair. You can eat more black beans. In addition, you can eat more black rice, black sesame seeds, and nuts. You can also combine black foods with Shouwu Take together sesame powder, brew it with boiling water, and drink it for a long time to nourish your kidneys and blacken your hair.
Increasing exercise and exposing the scalp to more sunlight can play a better supporting role.