Zao hardener is specially designed for brittle nails. It creates a protective barrier on the nails. Thanks to the bamboo extracts, the nails become more resistant and no longer split. It can be used as a cure or as an undercoat before applying nail polish. Bio-sourced and vegan, it is composed of 82% of raw materials of natural origin (potato, corn, wheat, manioc).
Apply a coat of Hardener and allow to dry. Then apply your Nail Polish.