Decent  day time  solution [SEP] I have the shortest, thinnest  eyelashes  ever. I constantly  use gobs of mascara to make  them thicker and longer. So when  I was  offered  to  review  this  product  for a  discount  in  exchange  for  an  honest  review  I jumped on it. This serum comes packaged  nicely and the bottle  seemed on the small side. I opened and tested  it on the back of my knee. No irritation  at all. So before  I went to sleep  I put it on my eye lashes  and brows. When I woke  up I didn't  see a difference. I decided  to try it in the morning  under my makeup. It made my eyebrows  super defined and they laid perfectly  through the day. It also made  my mascara  lay well and my eye lashes  appeared longer. I will continue  to  use  it  and see what happens.