Your beauty related training may include formal courses or on-the-job training. Likely this training is already listed on your resume; however, the interviewer would like for you to go into further detail. Be sure to express how your education will benefit Aveda, should you be hired.
For example, if you have related education/training: "I attended CMC Makeup School in Texas. My specialty was SPFX makeup and body painting. This unique focus gives me an edge in the market because my creativity is tapped hugely. Also, CMC is one of the top beauty schools in the US so you can be assured that I come well trained and could be a tremendous asset to Aveda."