Okay so, I remember when lash primers first came out and since then I have hated them and refused to buy them or even try them. Then I got this in the mail to try for free to review it. I did not even want to try it but I am so glad I did. I have long blonde lashes that are impossible to curl. I was so surprised because I used this and then applied the LancĂ´me Monsieur Big mascara and my lashes were amazing! They were dark, thick, and curled perfectly and lasted all day. I haven\’t tried this with any other mascaras yet. I have been using it for a little over a week now and today was the first day I didn\’t use it and I felt like my lashes disappeared. It made a HUGE difference for me just because my lashes are so straight. They are naturally very long and full but I feel they hardly show up because I can\’t get them to curl. This changed that and I don\’t have to use an eyelash curler (which I don\’t ever waste my time on anyways) I highly recommend it.