But compared to regular nail polish the results are long lasting as a result of using the gel. Another significant advantage of gel nail polish, it strengthens and protects your nail, gel nail polish comes in a variety of colors. Gel nail polish is a type of super nail polish that lasts for at least 14 days without cracks, scratches or smears on the nail. Another significant advantage of gel nail polish, it strengthens and protects your nail, gel nail polish comes in a variety of colors. Gel nail polish is a type of super nail polish that lasts for at least 14 days without cracks, scratches or smears on the nail.