THis bottle last at least 6 months

I bought this product because I've heard it does a great job at keeping eyeshadow lasting longer throughout the day. I've realized that it's true and it really does work. The only reason why I rated it good and not excellent is because I didn't notice a dramatic change from what I expected. Makeup still lasted long, but I believe I've had it last just as long without the product. I still use it everyday and will gladly recommend it!