GELISH FOUNDATION Base Gel - creates the adhesive bond between the nail plate and gel products. This product secures adhesion while not damaging the natural nail plate. FOUNDATION will work with Hand & Nail Harmony GELISH products as a base for GELISH STRUCTURE or GELISH Soak Off Gel Polish. GELISH FOUNDATION cures in 10 seconds in a LED Light or 30 seconds in an UV Light.