Profession / Career Aesthetician Description. Everyone who is interested in pursuing the world of beauty can take beauty courses which can be found on theharleystreet.com to get an official certificate and then be called an expert. A beauty expert or aesthetician is a term for those who are trained and skilled in performing beauty treatments. The esthetician provides counseling and provides programs tailored to the client’s goals and conditions. For example, Dermal Filler, Botox, or Lip Filler. Beauty experts can also handle clients who come for relaxation purposes. A beautician is required to be able to provide the best and of course safe solutions for various skin health problems…