DON'T add remover to your polish EVER. It's meant to break down the polish so all it will do is ruin the formula and make the polish separate. In a pinch you can thin it with clear polish but ideally use nail polish thinner, which basically puts back the evaporated chemicals to improved the formula. And DON'T store polish in the fridge... It doesn't stop evaporation and the time my friend did it all her polishes separated irreparably and she threw them out.