I was really looking forward to trying this after seeing the reviews however it really disappointed me.
It's really clumpy and thick and builds up too quickly before the fibers even adhere to my lash lengths. I also end up with little globs of the formula on the end of my lashes but no fibers! These globs are difficult to cover with mascara.
The only way I figured out to use it was by applying it just using the tip of the wand on the very ends of my lashes to avoid getting it on the lower lengths of my lashes, however this was time consuming and often ended up clumping anyway.
End result is messy and clumpy with little white bits poking out. Much prefer shiseido lash expander as it's two in one and works beautifully with no clumping.

HG! I finally found the best mascara base in my life. I read the reviews on MUA and decided to try it while I was in Japan for business. I bought it in a drugstore in Tokyo with 20% off MSRP.

The fiber in this mascara base is the finest and shortest I've ever found in any bases(mostly American brands) which I've tried in the past. The color somewhat turns from white to black after it gets dry. You can build your eye lash to your desirable the length and thickness by repeat swiping it over and over. It make a drastic change for short and skimpy Asian eye lash.

I see reviews that it didn't make much differences on some people. They must have some lashes to begin with. If you have short and skimpy lashes, this base is for you. Asian brand know the best. I went back to the drugstore next day and bought two more for stock.

I have tried a variety of lash primers, and so far only the Japanese ones have worked on my stick straight Asian lashes. My attempts with Lancome's failed miserably, with my lashes completely straightening after I apply the base. I expect my base to HOLD my curls created with my curler, not weigh it back down! by the time I put on my mascara over the Lancome, it's straight again.

Aside from the KATE one, I have also tried Canmake and Majolica. I think I'd rate KATE's between Majolica and Canmake, with Majolica's Last Bone (I used the white fiber version). KATE's is very similar to Lash Bone, both held my curl well but I think Lash Bone might've been a little better at the curl holding. However, KATE's mascara base was better at fanning out my lashes. Canmake's is nice too, but I find that aside from curl holding, it didn't do very much lengthening or volumizing.

In any case, I really like the KATE mascara base and plan on buying a few backups. Since it's cheaper than Majolica's version, I'm very willing to stick with it!

This was so bad, but so bad, that I tossed it after about 2 weeks. It made absolutely no difference on my lashes (no added lenght, volume, curl hold, nothing really) and in fact made my mascaras look worse thant they did on their own. It was also very hard to remove, even with an oil-based cleanser.
On my quest for a decent mascara base, so far the best one I've found is Lancome, although it's by no means amazing. I'm still looking...

I HAVE USED JUST ABOUT EVERY EYELASH PRIMER OUT THERE. FROM DIOR TO ESTE LAUDER, CLINIQUE, SHISEIDO TO MANY OTHERS. I HAVE TO SAY THAT OUT OF THE MANY THAT I HAVE TRIED I LOVE THIS ONE. I HAVE STRAIGHT THIN EYELASHES AND I HAVE TRIED TO STEP AWAY FROM USING WATERPROOF MASCARAS BECAUSE OF HOW DAMAGING THEY ARE TO YOUR LASHES AND HARD TO GET OFF, THIS IS AWESOME!!!!! IT HOLDS A CURL LIKE YOU WOULD NOT BELIEVE AND ITS EASY TO COME OFF. IT MAKES MY LASHES LOOK LIKE FAKE LASHES. I LOVE IT. HAVE TO SAY THAT THIS IS MY HG OF MASCARA PRIMERS. FOR ANY OF YOU WHO HAVE STRAIGHT EYELASHES THAT CANT HOLD A CURL AND HAVE SHORT THIN LASHES, TRY THIS MASCARA BASE. I PROMISE YOU THAT YOU WILL ALSO LOVE IT.

For those of you haveing a hard time removing this product or any eyemake-up forget the over the counter stuff - put some olive oil on a cotton pad. This will get it off with no problem.

HG!!!! Having never used a base before, maybe i'm not the best to comment but THIS IS AWESOME. especially the new base which comes in black fibres!!!!!! HELLO, NO CLUMPS, NO MESS JUST MAGICALLY ELONGATED LASHES WITH A FLICK OF THE WAND! It does show a bit of white at the tip of your newly luscious lashes but just a dash of regular mascara will do the trick for me or gently rub in some black shadow! AWESOME <3 continued >>

So far, I have not found a mascara base that can replace this and whenever I purchase these things, I tend to get an extra as well even though one tube lasts me ages. Anyhow, a new mascara base has been released. I believe the formula is the same but instead of white fibres ~ you've now got BLACK FIBRES.

To be honest, there's no difference to me whether its white or black as going over my lashes with a mascara covers it all black anyhow. I do really like this base though because its the only thing that's light and doesn't weigh it down, hence undoing my lash curls, it thickens and lengthens but still looks very natural. My lashes are not that long, neither do I have them very luscious; really, they're just very decent lashes but Kate's mascara base really helps prep and prime them so they look pretty amazing, almost like I've got falsies on, after mascara.

HG. Nothing can replace this. (I recently purchased a Coffret D'or mascara base. But somewhere in me, I know I'm going to keep turning to KATE because of the price and quality of this product). You can get these at Asian drugstores or Adambeauty.com - he's certainly selling them at the best price possible online.

got the newest or reformulated? version of the base...the entire tube is white...this base actually keeps my lashes keep its curl and it also gives me volume...was gonna buy the ysl but so glad i got this for half the amt!!!

Definitely my HG mascara base/primer. LOVE this stuff!
As stated by others, be careful to apply mainly to the tips, and not close to the base (I've had a few days where those fibers poke into my eye). I didn't like the shiseido base as it was hard to cover (could still see the gray) and it made my lashes stiff, which I hate.
I've never had any trouble covering this base, as all mascaras I've tried over have gone on smoothly and covered the white well. It holds the curl well as yes, I'm asian and one of my eyes' lashes are always straight although the other curls on its own.
I always get compliments and get asked if wearing falsies (my lashes are fairly long on their own).
I use an oil-based remover (by Sonia Kashuk) and don't have any trouble removing this. I realize this may be a problem for faces with an oilier complexion as mine tends to be dry.
I usually stockpile on this stuff through eBay as it's not available in the states. But it's still way cheaper than some HE bases and I look for someone who offers free shipping.