If it is ultra-fine, it may be cheaper. I feel that the one you bought may be the inferior pearl powder that is common in the market. It is also a waste to buy, because it has no great effect on the skin at all. I suggest you use it on your body! Don't use it on your face. I saved my face from beauty and ruined it. The pearl powder I used is nano-sized, and I haven't seen much good effect after using it for more than a year. So I began to lose confidence.