PrettyLitter Review: Is the Color-Changing Litter Worth It?
Silica crystals that change color with your cat's urine. Here's what we found, and what it costs.
PrettyLitter is the silica crystal litter that changes color when something in your cat’s urine looks off. This PrettyLitter review sets the brand’s claims against our own tests and looks hard at the price. I wanted to know two things: is the color-changing worth paying for, and does it work as a litter?
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Short verdict
PrettyLitter controls urine odor well, is very light and gives an easy-to-read color signal. It’s also about twice the daily cost of good clay, doesn’t clump, and bags ran out fast in our two-cat home. Buy it if you want a health early-warning for an older or at-risk cat. For everyday use, a premium clay is better value.
Best for health monitoring
PrettyLitter (Original)
- Ammonia week 1
- 1 ppm
- Ammonia week 4
- 25 ppm
- Bag
- 6 lb
- Cost per day
- $0.80
Figures: Our 60-day test, Mar 2026
Best forOwners of senior cats or cats with past urinary problems who want an early warning.
Skip it ifYou have several cats or a tight budget; bags go fast and the cost adds up.
What stands out
- Strong urine odor absorption in the first two weeks
- Color changes are easy to read on white crystals
- A 6 lb bag instead of 40 lb of clay
Watch out for
- About $0.80 per day, roughly twice good clay
- Doesn't clump; you stir urine instead of scooping it
- Solid waste odor control is weak
These numbers come from our own tests, not from PrettyLitter. The sections below cover how long a bag really lasts, what the colors mean, and when the extra cost makes sense.
PrettyLitter at a Glance
PrettyLitter is made of silica gel crystals, the same basic material as other crystal litters, with an added indicator that changes color with urine pH or blood. The original formula doesn’t clump. Here’s how its main claims compare with what we measured.
| Spec | Brand says | Our tests |
|---|---|---|
| Material | Silica gel crystals | Non-clumping silica crystals |
| Health signal | Color shows urine pH and blood | Color changed at once with acid and alkaline test solutions |
| Odor | Superior odor control | Ammonia 1 ppm in week 1, 25 ppm by week 4 |
| Dust | Undetectable breathing-zone dust | Low, but some visible dust when pouring |
| Longevity | Up to 2x longer than clumping clay | About 10 days per bag with two cats |
| Weight | Lightweight | 6 lb bag instead of 40 lb of clay |
| Cost | $24 per 6 lb bag | About $4.00 per pound, $0.80 per day |
The color claim holds up in simple bench tests, and the odor claim holds up early on. Longevity is where it falls short, at least in a home with more than one cat.
How the Color-Changing Works
The crystals contain an indicator that reacts to your cat’s urine. PrettyLitter’s guide says yellow or olive green is the normal range. Blue may mean high pH, which the brand links to infections or stones. Orange may mean low pH, and red suggests blood in the urine.
I checked that the colors react by pouring baking soda, water and vinegar solutions onto the crystals. Each one produced a consistent color change within minutes. That’s a simple bench test, not a pH meter, so it shows the indicator works without telling you how closely each shade matches a pH number.
That limit matters. A color change is a reason to call your vet, not a diagnosis. Urine pH also shifts with diet, and a normal color doesn’t rule out illness. Kidney disease, for example, won’t necessarily show up as a color change, so keep up regular vet checkups.
In my two-cat home, I never saw an unusual color while we used PrettyLitter.
Odor Control Over Four Weeks
PrettyLitter absorbs urine odor well at first. I measured ammonia at 1 ppm in week one and 3 ppm in week two, both below the level most people can smell. By week three it reached 10 ppm, and 25 ppm by week four. Dr. Elsey’s Ultra, a premium clay, measured 8 and 18 ppm over the same weeks.
The pattern is clear: excellent for about two weeks, then fading faster than good clay. Its control of solid waste odor is weak, because there are no clumps to lock smells in, and it develops unpleasant odors once the crystals are saturated. My guide to odor control litter compares it with clay options.
How Long Does a Bag Really Last?
This is where experiences differ most. The brand says a bag lasts up to twice as long as clumping clay. In our two-cat home, a 6 lb bag lasted about 10 days before odor built up.
The difference comes down to how many cats use the box and how much they pee. One cat in a single box is the setup the brand’s estimate fits best. For two or more cats, plan on changing bags much more often than once a month, and budget for it.
With two cats, one bag lasted us about two weeks, and odor control was good while we used it.
What PrettyLitter Costs Per Day
PrettyLitter sells a 6 lb bag of the original formula for $24 on its website, and a 10 lb clumping version for $29.99. That works out to $4.00 per pound and about $0.80 per day for one cat, and roughly $70 a month for a multi-cat home.
| Litter | Type | Cost per day, one cat |
|---|---|---|
| Feline Pine Original | Pine pellets | $0.31 |
| Tidy Cats | Clumping clay | $0.39 |
| Dr. Elsey’s Ultra | Clumping clay | $0.43 |
| PrettyLitter | Silica crystals | $0.80 |
That makes PrettyLitter nearly twice the cost of a top clay, and more than twice the cost of pine. Prices change often, so check the retailer’s page before you buy. My Fresh Step vs Tidy Cats comparison and Feline Pine review cover the cheaper options.
Dust, Tracking and Daily Upkeep
Dust was low in our test, and the brand says lab tests found undetectable breathing-zone dust. I still noticed some dust when pouring and scooping. It’s low, but not zero; my low dust cat litter guide has the lowest options.
Tracking is moderate. The crystals don’t cling to paws, but they’re light enough for cats to kick out of the box. Upkeep is different from clay: scoop solids daily and stir the crystals so urine spreads and dries. A litter mat catches stray crystals.
Will Your Cat Accept It?
Most cats use crystal litter without fuss, but not all. Some cats refuse to defecate in PrettyLitter, and the crystals sound like sand underfoot, which puts some cats off. That’s a real risk with any texture change, so introduce it gradually.
Mix a little PrettyLitter into your cat’s current litter and increase the share over a week or two. Keep a box of the old litter available until your cat uses the new one reliably. If your cat starts going elsewhere, switch back and see how many litter boxes per cat for setup tips.
My cats needed a transition period before they used the crystals reliably. After that, it was light and easy to scoop. We stopped because of the price: at a bag every two weeks, it cost more than we wanted to spend for two cats.
Who Should Buy PrettyLitter, and Who Shouldn’t
Buy PrettyLitter if you have a senior cat, a cat with a history of urinary problems, or a cat that hides symptoms well. The color signal can prompt an earlier vet visit, and that’s where its value lies. It also suits people who can’t carry heavy bags of clay.
Skip it if you have several cats, want to scoop clumps, or are watching your budget. A premium clay controls odor longer for about half the daily cost. My best cat litter guide compares the strongest everyday options.
My Verdict on PrettyLitter
Bottom line
PrettyLitter does two things well: it absorbs urine odor strongly for about two weeks, and its color changes are easy to read. It’s also expensive at about $0.80 per day, doesn’t clump, and bags can run out in 10 days in a two-cat home.
Buy PrettyLitter as a health early-warning for an older or at-risk cat, and call your vet if you see an unusual color. For everyday odor control at a lower cost, Dr. Elsey’s Ultra is the stronger choice.
Frequently Asked Questions
Is PrettyLitter worth it?
It’s worth it if you want an early warning about urine changes, especially for an older cat or one with past urinary problems. As an everyday litter it’s expensive: it worked out to about $0.80 per day in our tests, roughly twice the cost of good clay, and bags can run out fast in multi-cat homes.
How long does a bag of PrettyLitter last?
The brand says a bag lasts up to twice as long as clumping clay. Real-world results vary with how many cats use the box. In our two-cat home, a bag lasted about 10 days before odor built up. Plan on shorter than advertised if you have more than one cat.
What do PrettyLitter colors mean?
According to the brand, yellow or olive green is the normal range. Blue may point to high urine pH, linked to infections or stones; orange to low pH; and red to blood in the urine. Treat any unusual color as a reason to call your vet, not as a diagnosis.
Does PrettyLitter clump like clay?
The original formula doesn’t. You scoop solid waste and stir the crystals daily so urine spreads and dries. PrettyLitter also sells a clumping version in a larger bag, but our tests covered the original non-clumping crystals.
Does PrettyLitter track a lot?
Less than most litters, but it isn’t track-free. The crystals don’t stick to paws, yet the light granules are easy for an energetic digger to kick out of the box. A litter mat and a high-sided box help either way.