Extremely finely ground powder, which can be of great help when strengthening nails. It is recommended to be used when reinforcement is needed, but we want to keep its completely natural look. In this case, it is enough to apply the Compact Base Gel more thinly , then spread the Hardener Sand powder evenly with a spatula and set. After bonding, apply the color and gel polish to the nail as usual. The nail made in this way will be more resistant even without a C-curve, and its natural effect will be preserved, and it can also be dissolved.