eCosmetics is an authorized retailer of Probelle. An extending top coat that cures & continues to work with natural light that will maximize the wear of your manicure to prevent chipping. Natural light activates the super seal & micro-bonding particles which are combined for advanced long wear of up to 5-7 days. Provides a high-gloss shine for a healthier alternative to gel. Easy to apply for a smooth, glass-like application. This product does NOT require a UV lamp or base coat.