Often gels are referred to as "shellac," but The 2 aren’t essentially interchangeable. Shellac is actually a trademark of CND, the creators of gel engineering. Consider it a tad like “jacuzzi” and “warm tub,” the former referring into a trademark brand identify and the latter to a variety of merchandise. https://scrapbookmarket.com/story18055867/little-known-facts-about-gel-remover