I've been using this product for a little over 2 weeks now, applying it in the morning before mascara / at night on bare lashes before sleeping and I HAVE noticed growth in my lashes! The results aren't amazing but I didn't expect much from a drugstore product in the first place. The serum imo lengthens but it doesn't thicken like the package said it would. I don't regret getting this because for the most part it did give some results but not enough for me. I wouldn't buy this again but I think if I stop using it my lashes will go back to how they used to be ): that's a downer but overall, there's no harm in trying something new! It's a fun product...kind of like a chia pet hahahaha ...getting to watch your lashes grow BUT it does sting a tad for a few seconds when applying and the applicator would be more effective if it was in a mascara wand form! :)