Now + iron. Exclusive epoxy formula. Nails, won't chip, split, or crack. Salon tested. Dermatologist tested. Problem nails? Want great nail protection and great shine? Sally Hansen Hard As Nails Color is your solution! It gives nails a hard, smooth, chip-resistant surface that helps strengthen and support. Nails are sealed with brilliant shine for added protection against chipping, cracking and splitting. Made in USA.