I have very short, thin lashes so primers are a must for me. I have to say though that I'm quite disappointed with this product. Average performance. Does make a noticeable difference, but nothing dramatic. Separates lashes well; no clumps. Went well under all of my mascaras and is very affordable. Wouldn't buy this again however. Not enough WOW to it. Lancome's Cils Booster is much better

Amazing...builds length and some volume....also does not interfere with/weigh down my naturally curly lashes!

I use this in combination with the brush-then-comb mascara.

This has become a must have product for me. It really builds my lashes without any irritation from fibres. It makes my lashes thicker and longer and transforms a good mascara into an outstanding, long lasting one. It never clumps or flakes and has really improved the look of my lashes. I might keep trying new mascaras, but will stick with this primer. The other primer I used recently is by Smashbox and it does not hold a candle to Cliniques Lash Building Primer.

I LOVE the way my mascara applies when I use this primer. My lashes are fuller, with LOTS more volume. I love that I can use it with any brand's mascara. I go between a Clinique high definition and an Avon Supershock mascara for the best volume I've ever seen. I will continue to buy this -- it's a staple for me now!

I am not 100% sure I dig this quite yet so I may end up updating this review. While it doesn't go on cakey like some over the top primers or make my lashes spikey (who enjoys that!?) it did weigh down my lashes & my hard work my eyelash curler did :( I think I may end up just using this as a conditioner at night & not use with my mascara. Curl is THAT important to me :)

Love this product! you can match it with any mascara from any brand! lengthens thickens and helps my lashes stay long.

I actually really love this Lash Building Primer for so many reasons.

I've tested it. I went one day without it and just put my mascara on top of my bottom lashes. It did smear just a little bit and wasn't as separated and long as when I do use the primer.

I really like this brush. Because other building primers like Dior's brush is HUGE.....I hate huge brushes, stiff brushes.

The price is great. It's a very reasonable price.

The only thing is the tube is small, and it gets lost really easily haha. Or maybe it's just me?? :(

I've repurchased this one a few times.

my lashes: sparse, stick straight, asian lashes.

I bought this to try as a replacement for the discontinued Shiseido base. This primer made my lashes look fuller, however, it would not hold a curl. I think the formula was actually too heavy for my lashes, no matter how lightly I used it, within 30 minutes my curl would be completely gone.

This is my first mascara primer. I think it's excellent, and I will tell you why (duh, the purpose of writing a review.) It's easy to apply and goes on smoothly. The brush isn't overly large, or awkward. It doesn't make my lashes WHITE!, just sorta whitish, but I like that cause I know there's actually something there. It doesn't clump, and dries nicely. It makes my mascara stay on longer. It doesn't weigh my lashes down. It's doesn't make my mascara clumpy, but on the contrary, makes the mascara smoother. It dries nicely on the very tip of my lashes, so that when I apply my mascara, it goes all the way to the end, making them look SUPER LONG. I think it gives a slight condition to my lashes cause I feel like they're smoother and stronger. Also, an awesome thing is I think it's going to help me use less mascara. Usually I'm coating them like crazy, but a couple swipes, and they're dark, coated, and thick. I really love the packaging, long and sleek, and it seems like there is a lot of product in there. It was relatively cheap, at $13.00 at Sephora. Overall, I'm VERY pleased with my purchase, and will for sure buy again.

I used to use the Shiseido lash primer until they discontinued it and have been trying to look for a good one. My lashes are weird. I have to use waterproof or else it doesn't work. Furthermore, I get smudges on the bottom corners under my eyes. However with the Shiseido primer it didn't happen. and I have yet to find one like it! Tried the Clinique one and my lashes just dropped.