i had literally had no eyelashes a month ago from a bad eyelash extensions job and this stuff is magical! it hasn’t even been a month since i’ve been using it and check out my pic. one is without the revitalash mascara the other is with it. highly recommend the mascara as well. this stuff is amazing and has made me never wanna get lash extensions again. it is pricey but it is the best and i’ve tried all the lash serums including grande lash. 100/100 recommend for those who want fast growth.