Calgel overlays for hands 38 feet this revolutionary treatment gives you instantly dry chip resistant nails for up to 3 weeks the 3 week manicurepedicure involves applying a layer of uv calgel over your natural nails like nail varnish only the gel is set by a uv lamp unlike nail varnish calgel is much stronger and can last up to 3 weeks or more calgel allows your natural nails to respire and grow healthily under the protective layer of gel calgel can be applied and removed without