Contains ingredients derived from the Tend Skin® liquid formula with a few little “twists” to improve performance. ADVANTAGES: -will thicken and harden your fingernails with visible results in only a few days! -serves as a “primer” to be applied under fingernail polish. YOU WILL NO LONGER NEED TO USE FORMALDEHYDE-BASED PRODUCTS! -can be applied without a coat of polish over it so you can benefit from its hardening and thickening abilities -is easily brush-applied and dries in a few seconds. -apply under acrylic nail tips or silk wraps. The product will aid adhesion of these materials. It also helps protect the nail from damage caused by nail tips or wraps. 0.5 oz.