I have used OPI Nail Envy for years but thought I would try something different. Big mistake. The China Glaze Nail Strengthener & Growth Formula was not the one. They suggest you use it along with their Orange cuticle oil as well as no polish. I did use the oil in evenings before bed and never applied polish. The treatment was shiny at first then after day 2, it just slowly peels away. They suggest reapplying after 4 days. Well there is no point if it has completely peeled away by day 3. Sadly, this product was no good.