The Opi product from the Start to Finish line is intended for sensitive nails by applying every other day. It helps them become stronger and more flexible, thus making them more resistant to breakage. It offers a triple function: base coat, top coat and strengthener. Generally speaking, when applying a nail polish, there is a risk that with any movement or rubbing, it will be damaged immediately. By applying this product on top of the nail polish, you get a shine that makes your hands look clean and cared for. The drying will be faster and the risk that the manicure will be damaged will be lower. It is applied before and after painting. Helps the paint to stay evenly on the nails. Suitable for women who like to take care of their hands. Not suitable for children.