The short answer
Here, a "sensitive" cat is one that is particular about the feel or smell of its litter, or a home that would rather avoid added fragrance. It is not a medical term.
Check three things in the brand's own words: that it says unscented or fragrance-free, whether it adds odour-control ingredients, and which mineral it names. Then introduce the new litter gradually. If you suspect a health issue, ask a veterinarian.
"Unscented" is about added scent, not odour control
Brands use different words for no added scent. Purina says Tidy Cats Free & Clean is "free from fragrances and dyes", Fresh Step says Simply Unscented is "formulated with no added dyes or fragrances", and Boxie calls its clay litter "completely unscented".
Those words describe added scent. They do not tell you whether a litter contains odour-control ingredients. Purina describes Free & Clean as made "with activated charcoal", Fresh Step describes Simply Unscented as clay "enhanced with carbon", and Church & Dwight's ingredient disclosure for Arm & Hammer Super Scoop Fragrance Free lists sodium bicarbonate as a "Deodorizer". Read the ingredient list where the brand publishes one.
What each brand says
Each row repeats the brand's own wording, checked on 17 September 2026.
| Brand and product | Scent wording | Mineral |
|---|---|---|
| CATPAK attapulgite cat litter | Not stated in this guide | "100% natural attapulgite" |
| Purina Tidy Cats Free & Clean Unscented | "free from fragrances and dyes" | "natural clay"; Tidy Cats clumping litter is "primarily sodium bentonite" (FAQ) |
| Dr. Elsey's Ultra Litter | "Unscented"; "without perfumes or deodorants" | "Natural Clay" |
| Fresh Step Simply Unscented | "no added dyes or fragrances" | "clay" |
| Arm & Hammer Super Scoop Fragrance Free | "Fragrance Free" | "Bentonite" (ingredient disclosure) |
| Boxie Unscented Natural Clumping Clay | "completely unscented" | "100% Bentonite clay formula" |
A named mineral, or just "clay"?
Every litter here is clay or a named clay mineral, but the detail varies. Arm & Hammer and Boxie name bentonite, Purina's FAQ says primarily sodium bentonite, and Dr. Elsey's and Fresh Step say clay. CATPAK is attapulgite, a different mineral from bentonite: see what attapulgite is and which brands use it.
CATPAK
CATPAK is 100% natural attapulgite in a clumping formula, sold in resealable, reusable tubs. For the finished product, CATPAK states: Natural odour control for up to 20 days — ammonia removal rate 98% and tested dust emission <0.35%.
Switching a sensitive cat
Change gradually and keep the familiar litter available, for example in a second box beside the usual one. Step by step: how to switch cat litter. If your cat starts avoiding the box, go back to the old litter and ask a veterinarian.
Frequently asked questions
How should I choose an unscented mineral cat litter for a sensitive cat?
Check that the brand itself says unscented or fragrance-free, whether it lists odour-control ingredients and which mineral it names, and consider texture. Then introduce the new litter gradually alongside the one your cat already uses.
Can an unscented litter still contain odour-control ingredients?
Yes. Among the litters in this guide, Purina describes Tidy Cats Free & Clean as made with activated charcoal, Fresh Step describes Simply Unscented as clay enhanced with carbon, and Church & Dwight's disclosure for Arm & Hammer Super Scoop Fragrance Free lists sodium bicarbonate as a deodorizer.
About this guide
CATPAK publishes this guide and sells one of the products listed. We have not tested the other products. Labels change, so check the current package. This guide is not veterinary advice.
