Nail Aid - butter LONDON's base and top coat system - are formulated to work together to improve the look of your nails after just one application! The revolutionary base coat brightens the nail bed filling in ridges and smoothing its surface, while delivering a potent mixture of vitamins and minerals. The high-shine, fast drying top coat is loaded with a unique mix of vitamins and peptides to seal in lacquer while allowing your nail to breath. Immediately your nails look better, and in just three weeks you'll experience healthier, stronger nails. There is no need to give up your manicured hands, just help them out with Nail Aid. Basecoat is formulated with horsetail extract, vitamin B, biotin and glycerin known to promote nail growth and moisture retention. Topcoat is formulated with horsetail extract, keratin, calcium, and peptides for ultimate shine, strength, and extended wear. Does not contain Formaldehyde, DBP, Toulene, Formaldehyde resin, Camphor, or Ethyl Tosylamide.