I received 30 units total . Not sure if it was worth it yet . I'm 36 and just wanted to soften my appearance a bit . It said it could take 24 hours to a week to notice your results so I'm not sure yet bc it's only been 24 hours. Results only last 3-4 months so it could get quite expensive to maintain . Updated on 14 Jul 2016: Updated on 14 Jul 2016: Didn't hurt . Just a little numb Updated on 14 Jul 2016: Dr said it may take up to a week to notice results . Updated on 19 Jul 2016: Def notice a difference and want to get my crows feet done Updated on 27 Jul 2016: Def going to do it again!!! Updated on 27 Jul 2016: Updated on 31 Jul 2016: I really love the look now that I've had it for a few weeks :)