I've used this product before a while back. Using it again made me wonder why I ever stopped... The fibers really lengthen my lashes especially my bottom lashes and the best thing about it is that it doesn't clump up. The only slight negative thing I can say about this product is you need to have time... if you're anything like me I have exactly 1 minute to put on my make up in the morning and this is not the first thing I'll grab.