... one weekServiceOffer OEM & ODM serviceCertificateMSDS,SGSFeatures:1,High quality UV builder gel with no odor,no color,like real nail2,Fast curing ... quality and competitive priceHow to apply:Our testing Curing Lamp:12W LED lamp & 36W UV lamp.1).Clean you nails and buffer or file ... ).Apply a thin layer of base gel, cure 1min with UV lamp or 30sec' with LED lamp.3).Apply the builder gel, cure 1~2min ...