As of 2015, there is no credible medical evidence that people can use apple cider vinegar to reverse hair loss, indicates WebMD. Mayo Clinic suggests consulting a doctor to determine the cause and appropriate treatment for the hair loss.
Some websites such as Apple-Cider-Vinegar-Benefits.com claim that apple cider vinegar is effective in reversing hair loss. The site suggests applying apple cider vinegar to the scalp and leaving it on for about an hour before washing the scalp and hair. This procedure is said to stimulate hair growth and eliminate hair loss.
However, apple cider vinegar is not listed as a treatment for hair loss by medical experts such as Mayo Clinic or WebMD. Instead, these experts suggest scientifically proven treatments such as prescription medications, transplantation and laser therapy.