Warts
Warts are small, hard growths on the skin that occur due to viruses. A 2011 study [5] tested the effectiveness of a 15% glycolic acid treatment in 31 HIV [6] -positive children with warts. The result indicates that the treatment helped flatten and normalize the color of the warts, but it only completely cleared them in 10% of the participants.
Other research from 2011 evaluated the effectiveness of a gel containing 15% of glycolic acid and 2% salicylic acid containing 20 people with warts. The research found that the gel was effective.
However, both these studies were small, therefore, more research is necessary to confirm these findings.