One Step – 1S number 112 4ml , perfect product for natural nails. Fast to spread, it has a 2-3 week hold. It is easily soluble and requires only one passage instead of 4 as it is not necessary to use the base, the top and the Cleanser. Prepare the natural matted nail with Nail Prep and No Buffer Scrub, apply a thin layer and cure in UV lamp 3 min and 2 min in LED