Restore & Strengthen Nails: This unique base coat is a special blend of strengtheners, conditioners, micro-fibers, and natural fillers that help strengthen natural nails, fill ridges and restore fragile, damaged nails to their perfect health and shape! | Concentrated All Natural Formula: Its concentrated formulation gives the extra strength necessary to correct severe nail weakness. Use this to correct severe weak nails and apply in conjunction with Foundation 4 to achieve fast and maximum results! | Multipurpose Nail Ridge Filler: Apply this as a base coat to make your nails significantly stronger and flawlessly beautiful, or use this as a top coat to achieve that salon-quality nail polish finish while promoting stronger and healthy nail growth! | Easy-to-use Anti-yellowing Base Coat: To use, simply apply one coat before applying your favorite nail polish for superior polish adhesion, protection from yellowing stains, and an ultra-smooth nail surface. | Award-Winning Nail Therapy & Made in the USA: Nail Tek has been voted as “Best Natural Nail Treatment” by Salon Professionals! This pro-approved nail strengthener is 100% cruelty-free, DBP-free, and Toluene-free, perfect for restoring natural nails from damage.