Brand from Japan: Cosme de Beaute. No need for sanding/base coat/top coat/wiping, just this one for a salon-grade finish.Even beginners can easily start gel nails.Can enjoy two ways of how to use depending on your lifestyle.Can use it as it is and it will last for 2 weeks.How to use:Remove oil from nails.It is important to wipe off the oil thoroughly.Apply it thinly and evenly so that air does not enter.Cure with LED/UV light for gel nails (reference wavelength 365-400nm).Estimated curing time: about 1 minute.If you feel hot, please remove the LED/UV light from your nails.