Clumping Clay
Dr. Elsey's Ultra
The gold standard for dust-free clay litter. Rock-solid clumps, very low dust, and excellent day-to-day usability.
Overall score
9.4/10
Cost per day
$0.51
Reviewed Mar 7, 2026
Head-to-head comparison
Dr. Elsey's Ultra vs Sustainably Yours
Compare dust, clumping, odor control, tracking, and daily cost side by side. Dr. Elsey's Ultra is the better fit here for dust-sensitive homes.
ReviewCatLitter editorial teamUpdated Mar 7, 2026
This comparison page is maintained by the ReviewCatLitter editorial team and grounded in the same scoring framework used across the published review catalog.
Natural (Corn + Cassava)
Sustainably Yours
A premium natural litter with harder clumping than most plant-based options and bright white granules for easy health monitoring.
Overall score
9.3/10
Cost per day
$0.63
Reviewed Mar 6, 2026
Overall winner
Dr. Elsey's Ultra
Dr. Elsey's Ultra is the strongest all-around pick in this comparison for dust-sensitive homes.
Lowest daily cost
Dr. Elsey's Ultra at $0.51/day
Budget is often the deciding factor in this tier.
Best odor control
Sustainably Yours at Better than standard corn
Odor control often decides whether a litter feels tolerable long term.
Tracks less outside the box
Sustainably Yours at Low
Tracking can be more important than overall score in small spaces.
Why Dr. Elsey's Ultra wins this matchup
Primary tradeoff: Dr. Elsey's Ultra's weakest area here is tracking.
Best dust control here at 0.03mg per pour.
Clumping is a real edge: rock-solid.
It is also the cheapest daily option at $0.51 per day.
| Product | ||
|---|---|---|
| Overall Score | 9.4 | 9.3 |
| Pricing | ||
| Price | $24.99 | $29.99 |
| Weight | 40 lbs | 26 lbs |
| Cost / Day | $0.51 | $0.63 |
| Performance | ||
| Dust Control | 9.4 0.03mg per pour | 8.8 0.11mg per pour |
| Clumping | 9.8 Rock-solid | 9.3 Excellent for natural litter |
| Odor Control | 8.5 Strong unscented control | 8.6 Better than standard corn |
| Tracking Outside the Box | 7.2 Moderate | 8.4 Low |
| Value for Cost | 8.8 $0.51/day · $24.99 | 7.8 $0.63/day · $29.99 |
| Features | ||
| Type | Clumping Clay | Natural Corn + Cassava |
| Flushable | ||
| Scented | No | No |
| Our Verdict | ||
| Best For | Dust-sensitive homes | Best-performing natural litter shoppers |
| Read ReviewCheck Price | Read ReviewCheck Price | |
Best fit
Dr. Elsey's Ultra
Dr. Elsey's Ultra makes the most sense for dust-sensitive homes.
Worth it if
You want the cleanest clay experience with hard clumps and low dust.
Skip it if
You need flushable or lightweight litter.
Best fit
Sustainably Yours
Sustainably Yours makes the most sense for best-performing natural litter shoppers.
Worth it if
You want a premium natural litter with harder clumping than most plant-based options and bright white granules for easy health monitoring.
Skip it if
You need a formula that solves dust-sensitive homes better.
If neither option is quite right
These alternatives solve a more specific budget, dust, or material tradeoff.
Read the full reviews
Use this page to choose a winner quickly, then open the full product reviews if you want the long-form test notes.
Keep comparing nearby options
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Quick Answers
Which is better: Dr. Elsey's Ultra or Sustainably Yours?
Dr. Elsey's Ultra comes out ahead in this matchup based on the balance of dust, clumping, odor control, tracking, and day-to-day cost.
Which is cheaper per day: Dr. Elsey's Ultra or Sustainably Yours?
Dr. Elsey's Ultra has the lower daily cost in this head-to-head comparison.
Which has better odor control: Dr. Elsey's Ultra or Sustainably Yours?
Sustainably Yours posts the stronger odor-control result in this comparison page.
Which tracks less outside the litter box: Dr. Elsey's Ultra or Sustainably Yours?
Sustainably Yours has the stronger tracking result in this head-to-head comparison.