NSI Matte Top Coat is an ultra silky, no wipe topcoat that cures in just 60 seconds in an LED Lamp. The NSI Matte Topcoat is HEMA-free and will not yellow. Leaving the nails with an amazing soft finish, the matte finish you’ve been looking for. NSI Gel Top Coat is an ultra glossy, no wipe topcoat that cures in just 60 seconds in an LED Lamp.