4.5 rating [SEP] I do like this product. my eyelashes were already longer from a product that is no longer available on Amazon. I have been using it for almost a month and I have noticed that although my lashes are maintaining their length, they are very light and I need to tint them or wear mascara for others to see them. The only down side would be that it does sting a little after application no matter how careful I am. I used the other product for about 4 years and unless I actually stuck my eye with the brush I didn't experience any discomfort. I would give it a 4.5 if that option were available.