December. 12, 2025
Cat litter, as a daily necessity for cat owners, provides a good solution for cat feces. But what is cat litter made of? And is the raw material used to make cat litter harmful to cats and their owners? Please find the answers in this article.
Cat litter is made from a variety of ingredients, each with its unique properties and functions. Here are some common cat litter ingredients:
Bentonite Clay: Bentonite clay is one of the most common ingredients in cat litter, renowned for its powerful moisture absorption and clumping ability. Bentonite clay cat litter can quickly absorb urine and form tight clumps, making it convenient for pet owners to clean up and less likely to cause contamination.
Pine Wood: Pine wood cat litter is primarily made from recycled pine wood, supplemented with a small amount of natural binders. This type of cat litter is dust-free, highly absorbent, and easy to clean. It is also environmentally friendly and non-toxic. However, it's worth noting that some pine wood cat litters may pose a formaldehyde risk, so caution should be exercised when selecting.
Tofu Residue: Tofu cat litter is made from the residue generated during the production of tofu, making it an eco-friendly option that utilizes waste materials. It is non-toxic, harmless, and easy to clean, making it very friendly to cats. Furthermore, tofu cat litter has various derivatives, such as tofu herbal litter and tofu color-changing litter, catering to the needs of different cats.
Paper Shreds: Paper cat litter is primarily made from paper and paper shreds, featuring strong water absorption and moderate clumping ability. The particles of paper cat litter are small, requiring less usage and convenient for cleaning. However, attention should be paid to its weaker clumping strength. Some paper cat litters contain activated carbon, which aids in odor removal.
Silica Gel (Silicon Dioxide): The main ingredient of crystal cat litter is silicon dioxide, which is a non-toxic and pollution-free eco-material. Crystal cat litter has strong water absorption and does not easily clump. Its particles are translucent and can change color to indicate when it's time for replacement. Additionally, it has odor-removing and bacteria-killing properties.
Based on different ingredients, functions, and characteristics, cat litter can be classified into various types. Here are some common types of cat litter:
Clumping Cat Litter: Made primarily from bentonite clay, this type of cat litter has strong moisture absorption and clumping ability. It can quickly absorb urine and form tight clumps, making it easy to clean up and less likely to cause contamination. Clumping cat litter is one of the most commonly used types of cat litter.
Pine Wood Cat Litter: Made primarily from recycled pine wood, this type of cat litter is dust-free, highly absorbent, and easy to clean. The larger particles of pine wood cat litter are less likely to be carried out of the litter box by cats and can inhibit bacterial growth, keeping the litter box clean and hygienic.
Tofu Cat Litter: Made from tofu residue, this eco-friendly cat litter is non-toxic, harmless, and easy to clean, making it very friendly to cats. Additionally, tofu cat litter has a variety of derivatives that cater to the needs of different cats, such as tofu herbal litter and tofu color-changing litter.

Crystal Cat Litter: Made primarily from silicon dioxide, this type of cat litter has strong water absorption and does not easily clump. The translucent particles of crystal cat litter can change color to indicate when it's time for replacement and have odor-removing and bacteria-killing properties. However, it's worth noting that crystal cat litter is relatively pricey and not suitable for clumping cleanup.
Paper Cat Litter: Made primarily from paper and paper shreds, this type of cat litter has strong water absorption and moderate clumping ability. The smaller particles of paper cat litter require less usage and are convenient for cleaning. However, attention should be paid to its weaker clumping strength and odor-removing ability. Regular replacement is necessary to maintain the cleanliness and hygiene of the litter box.
Mixed Cat Litter: This type of cat litter is made by mixing multiple cat litter ingredients. Mixed cat litter aims to combine the advantages of different cat litters, improving their moisture absorption, odor removal, and eco-friendliness. However, it's worth noting that the quality of mixed cat litters varies, so careful selection is required when choosing.

In summary, The ingredients used to make cat litter are non-toxic to both owners and cats, and the cat litter itself is harmless to both cats and people. Proper use of cat litter, proper storage of cat litter, and regular cleaning of the cat litter can reduce the negative impact of feline waste on human health.
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