Ultra Pet Litter Pearl Micro Crystals, 3.5-Pound Bags (Pack of 2)

I have used "crystal" type litter for several years now and they are absolutely fantastic. There is absolutely no smell or dealing with urine clumps and whatnot. In my experience, all crystal litter has performed in this manner.I used to use PETCO brand crystal litter. This is a great litter but the rocks are big and often got stuck between my cats paws and would be dragged into the room (or at the very least all around the outside of his litter box). These Micro-Crystals are far superior to the petco litter at the same price point.PROS:-Very fine litter, does not get stuck in my cats paws or spread anywhere (In fact, I have not seen ANY of it spill outside his box yet and I have been using it for roughly 3 weeks)-NO smell-Once a month; just scoop the poop don't worry about the urine at all until you swap the whole thing out.CONS:-Dusty when the cat uses it or when changing it out (due to how fine the crystals are)**This is a minor problem because I keep my litter box next to my toilet (easily scoop the poop) so if I go into the bathroom right after my cat, it is a little dusty. It settles very fast though (a minute or so is plenty to wait)Overall, I definitely would recommend these as the #1 type of cat litter I have ever used. I have had cats for over 20 years and am exclusively switching to these. The ONLY issue I have seen with them is the dust that is kicked up after my cat uses the box, but this settles so quickly it is not an issue.

My rating is really 4-1/2 stars. Granted, the litter is very fine, so it's more like having salt or sugar (blue, urine soaked salt or sugar) sprinkled around the litter box, rather than the sharp gravel-like regular Ultra Pet Litter Pearl Crystals, but it IS there on the floor, begging for me to sweep it up. Yes, it is a first world problem, inconsequential in the general scheme of things. However, it's really stretching the truth to say it doesn't track, AND when you are stirring through it to remove solids, you will want to hold your breath, because there will be a little cloud of dust floating up that you don't want to inhale. The regular litter pearls don't do this. Still, I think I prefer the micro crystals for the way they work; I think they last longer. I don't particularly care for the blue color; in fact, it annoys me to see blue dye used for no good reason in anything, and in kitty litter in particular. If they wanted it to appeal to an animal, they should have dyed it dirt color; or is it blue to appeal to human aesthetics? All these complaints aside -- it is fantastic in terms of absorbing liquid and neutralizing odor, truly an order of magnitude beyond other litter brands. It's really a wonderful thing to not smell the cat box from every room in the house! I can't gauge how economical it really is, but it is an expense I am willing to bear. Supposedly, it is a material that breaks down or isn't toxic - silica - and I certainly appreciate that.

I will preface this review by saying that I've only been using the litter for a couple of days. That said, I completely agree with the review by "Mani Arabi'. If you're used to crystal litter, then you already know how it works (it absorbs the urine and the liquid in the poo, and therefore eliminates odor, and there's no clumping), and this is a very good version of the crystal litter because the particles are so fine. I have a scoop-free auto litter box, and have been using the 'forever' tray, but the crystals that you i used to buy to use with it were really big, and they would bunch up behind the rake. Also, because they are so hard, my cat would like leap out of the box to avoid stepping on them, and they would get everywhere. Both of those problems are eliminated with this litter -- it's so fine that the rake easily passes through, and so far the cat doesn't seem to track any of it. it costs a bit more than other crystal litters, but in this case you really do get what you pay for, and i think it's worth the few extra dollars to not have to vacuum/sweep next to the box constantly. (also, you can do the subscribe&save thing to save 15%, and they let you cancel at any time, including immediately after placing a single order. you won't get the 2-day shipping though, even with prime.)as for the reviewer who complained that eventually the litter got soaked and started smelling -- all crystal litter does that. some cats pee more than others (lord knows mine does), and they will 'fill up' faster. it's really not a defect of this particular crystal litter, it's just how crystal litter works.

Litter is good. The condition of the bag when I received it was not good.

UPDATE 2/3/13: This is a great product but has nearly doubled in price. I'm forced to look for a less costly alternative. I won't purchase again unless the cost comes back down!!For years I tolerated using the clumping clay litter. No matter how much or how often you cleaned the litter box there was always some smell. Not anymore thanks to Ultra Pearls.I live in a very small apartment and have 2 cats - if I skipped a day of cleaning out the old box, you knew it. With Ultra Pearls there is absolutely no odor!Because this is such a finely ground silica it absorbs the urine very effectively and there s NO ODOR. I use the manual version of the Scoopfree litter box and this works great with the unit.I'm never going back to clay litter again. Ultra Pearls is officially my new staple for the litter box!I enthusiastically & highly recommended.