I was very disappointed in the sample I received of this. It was dry and I wasn't able to test it's worth. I would say based on the sample I would not be willing to try this product.

I tried this product through my Birchbox sample. The applicator was very precise so it was easy to apply. No irritation to my eyes at all and I am a contact lens wearer. I did not see a difference during the time of my trial though. Perhaps you have to try longer?!

I am obsessed with long lashes- with that said, I was hoping that something would be noticeable with the sample. It was too small for anything to make a difference and to spend $70 and not be sure, I'll stick with my own routine that gives me long lashes.

My lashes definitely grew, in fact I love it but have to give it a break because I wear glasses and they are now long enough to bat up against the lenses and freak me out.

I received a sample of this product in my box. The sample was a little small to notice any differences in my eye lashes. Maybe it would work in time with the full size product. It was gentle on the eyes. No irritation at all.

Seems like a good concept. Hard to tell by the sample if it truly works. The applicator was easy to use and precise !

I got the sample of this and have tried it once every other day. I notice a very subtle change on my lashes. They seem to get a little longer but it also seems that the lashes at the outer corners of my eyes fall out more often. I don't know if that's something to do with this chemical or not.

I've always been skeptical of lash serums, but this did the trick! What a pleasant surprise. My lashes are fuller and longer than ever. Worth the purchase.

After using the sample bottle in my Birchbox it's really hard to tell if this product made any difference to my lashes. Still a fun product to try!

it is the best product i got from birchbox pretty much the first week i saw results on my lashes