Nail artists charge extra to remove the coating you have done elsewhere, not at all because they are harmful and therefore trying to keep customers. The reason for the higher price lies in the serious reasons which can greatly affect nail health.
Source: The Voice Mag

I am Amanda Gans, a motivated and ambitious professional in the news writing industry. With over five years of experience in this field, I have developed an eye for detail and an ability to craft stories that captivate readers. I currently write for Gossipify, where I specialize in beauty & celebrities news. My passion lies with exploring the world of beauty through writing, interviewing experts and developing articles that are both informative and entertaining.