Recently, this product bottle empties too quickly

I would really like an answer. I love this product but the last two times I've purchased, the product bottle emptied within a couple of weeks. I use only one pump each morning and night, and don't understand why this is happening. I've used this primer for years and would like to continue using it, but it is too expensive for the little amount of product I get. Any explanation?

Originally posted on sephora.com

Good

Nice but doesn’t minimize my pores enough. I have mature skin so it worked great from that perspective.

Originally posted on sephora.com