Shellac nails are a type of semi-permanent nail polish that is a mix of gel and traditional nail polish. The polish is applied in two color coats and a top coat, and each coat is cured under a special UV light. Shellac nails are thinner and softer than gel polish, but harder than traditional varnish. They are known for their durability and long-lasting shine, and can last between 10 and 14 days. However, because shellac nails are partially made with standard polish, they are more vulnerable to chipping than gel nails. Shellac nails can be removed with a special acetone-based remover made specifically for shellac polishes, and the removal process is relatively easy and quick.