Wow, it's about 40- 100, but it depends on the level of the store. High grade, it must be high for you, and there are technical aspects. But it's best not to do that kind of chemical nail polish, which is harmful to both the body and nails. Now everyone buys the environmentally-friendly and healthy nail polish, which has no pungent smell and is easy to apply. Bo Tu also works very fast, which I think is very good. You can try. Suzhou online shop sells it.