I am in love with this eyeliner! It applies like a dream and is highly pigmented. It lasts all day and doesn't smudge at all. As far as the "lash boosting" properties I can't say I've noticed a difference, however this liner does feel better on my eyes than many other liquid liners that I've tried. It is a little bit pricey for a drugstore brand, but I am usually able to stock up when it's on sale and because I love it so much I am willing to shell out a few extra dollars.

hands down the best and most definitely buying ti again! i highly recommend this product!

This is the best eye serum I've ever have came across it helps for under my eyes so well.

This eyeliner as a fine brush and smooth consistency that has enough body to it to be applied in a single stroke if that's all you want .... or to build up if you want more umph. Wish it was waterproof but its staying power definitely improves with the use of eye makeup primer. The product really lasts a long time and really is a nice product that is super easy to use.

I liked how this applied. I could really control how the lines looked. The only downside was that it fades.

I love this eyeliner! Im not super excited about the price, but I would say well worth the money. I love how easy it is too apply, with its smooth finish and found it stayed on most of the day. I was really excited to see if my eyelashes would be enhanced from this liner and in a few weeks they were not only longer, but fuller. The only thing I did not like about this liner was that I found it dried out quite quickly,having to buy another one every month or so. Overall great product!

This is my favorite liquid liner to use, even when compared to some high end brands. The brush makes application easy and precise. It is long-lasting, water and oil resistant. Although it is advertised as a Lash Boosting liner I did not notice it's effects, however it is a great liner either way.

I love to use eye serums, I have bags under my eyes, dark circles around my eyes and crows feet, but this product helps to take it away!! I also have low Iron, and Mediterranean anemia !!

This is my HG eyeliner. I've been using it for over a year now and I can't get over how amazing it is. I wear this over a neutral cream based eyeshadow and it stays put all day. The brush is very thin so you may need to acclimate to it but once you get the hang of it, it's magic. It does not tug on the skin either. Thank you PF!

Another bargain bin buy - I got a two-pack of this product at Burlington Coat Factory for $5 when normal retail price is something like $10 for just one. To be fair, I have not noticed any significant difference in the length of my eyelashes after using this product, but I didn't buy it for that reason anyway. I bought it because I wanted a new liquid eyeliner, and if it happened to lengthen my eyelashes in the process, then that was just a plus.

As an eyeliner, this product works like a felt tip marker and is similar to L.A. Girl's Mark My Eyes eyeliner, but not quite as bold. But, to be fair, this eyeliner is meant to just kind of look like eyeliner while enhancing the lashes, so I'll give it a pass. It feels a little tingly when applied to the eyelids and it does go on smooth, but as with most felt tip liners, you have to make sure the tip stays free of things like eyeshadow residue, lest it become clogged and unusable.

The liner does wear off a little quicker than I thought it would and can easily be covered with eyeshadow. So for anyone who purchases this with the intention of volumizing their eyelashes, I would suggest putting this on first, then eyeshadow over it, then another liner on top, tracing the faint line left by the felt tip liner. I wouldn't buy this product if it wasn't on sale either - I know Physician's Formula is higher end than Wet N' Wild, but I would never in my life spend $10 on any eyeliner, even if it did promise fuller lashes.

Mind you, this isn't a horrible product, but it's also not worth the cost. If you want to add volume to your eyelashes, I would recommend looking for a different lash-boosting serum and using volumizing mascara, of which there are many fantastic choices available. For an eyeliner, I would recommend the one I mentioned before if you want a good felt-tip liquid liner: L.A. Girl's Mark My Eyes.