Dr. Elsey’s Cat Litter Review: Five Formulas (2026)

Ultra is the unscented clay this brand leads with. The product page says hard clumping, low tracking, 99% dust-free, superior odor control, multi-cat strength, and no perfumes or deodorants. Ingredients are natural clay. The texture line is heavy granules with medium-grain clay, so moisture stays off the tray bottom and the clump does not break apart. The brand calls it the right litter for sifting or mechanical boxes. Fill 3 to 4 inches, scoop twice a day, and put used litter in the trash. Do not flush. The linked bag is 40 lb. The FAQ lists Ultra as hypoallergenic.

Start here when the cat already uses the box. Cat Attract, Clean Tracks, and Respiratory Relief are forks off this clay, not upgrades you buy because a chart scored them higher.

Cat Attract is the problem-box clay. The product page says a natural herbal attractant, 99% dust-free, hard clumping, and chlorophyll odor control. Ingredients are natural clay and herbs. The FAQ says the blend is natural grasses and does not include catnip. Fill, scoop, and trash rules match Ultra: 3 to 4 inches, twice a day, do not flush. The brand sells it in a 40 lb bag and says it is guaranteed to bring cats back to the box. That guarantee is the brand’s sentence.

Use it when a cat is missing the box and a veterinarian has already checked for illness, pain, or a urinary problem. An herb can raise interest in the box. It does not clear an infection. If the cat already digs and covers in Ultra, Cat Attract is usually the same clay with a smell you did not need.

Clean Tracks is the low-tracking clay. The product page says a medium-grain formula that keeps litter in the box and leaves fewer dusty paw-print paths, with hard clumps and odor control, unscented, no perfumes or deodorants. Ingredients are natural clay. Fill 3 to 4 inches, scoop twice a day, trash only, do not flush. A brand coupon lists a 40 lb bag and a 20 lb box. Confirm which one the listing is. The FAQ groups Clean Tracks with Ultra as hypoallergenic. The page does not print a 99% or 99.9% dust figure, so this review does not invent one.

Buy it when tracking is the complaint and Ultra already clumps well enough. It is still clay. It is not the larger-granule corn on the corn-versus-clay page, and it is not Senior’s crystals.

Respiratory Relief clay is the dust-and-essence fork. The product page says low dust, hypoallergenic, no plant proteins, no perfumes, no deodorants, hard clumping, and natural herbal essences. Ingredients are natural clay and herbal essences. The brand says a dirty, smelly box can be stressful, and that low dust plus the essences are meant to help control respiratory disease. Read that as the brand’s framing. A litter does not diagnose asthma, and it does not replace a veterinarian when a cat is coughing or breathing with effort. Fill 3 to 4 inches, scoop twice a day, trash only, do not flush.

The brand also describes a silica version of Respiratory Relief. The bag linked here is the clay formula. Confirm the weight on the listing before you assume a particular pound size. The asthma litter guide is the longer page for airway limits. Unscented and a lower pour are the practical steps. They are not treatment.

Senior is not a fifth clay. The product page calls it crystal litter with Cat Attract, a finer grain for senior, arthritic, pregnant, and overweight cats. Ingredients are silica sand and hydrolyzed herbs, and the page says it does not contain crystalline silica. Pour about one inch. Remove solid waste daily. If urine is visible at the bottom, empty the box and wash it with mild unscented soap and hot water before you refill. A brand coupon lists an 8 lb bag.

The same page says Senior helps prevent kidney failure and urinary infections, and that it keeps the genital area clean. Those are the brand’s sentences. This page did not measure kidney function, and a crystal does not treat kidney disease, a uterine infection, or a urinary blockage. Call a veterinarian for straining, blood, or a cat that stops eating. Senior also will not replace Ultra in a sifting box that was built for hard clay clumps.