[Written by a Veterinarian] Are Perfumes and Fabric Softeners Bad for Cats? | How Scents Affect Cats' Health and Tips for Avoiding Stress

While perfumes and fabric softeners may have a pleasant scent for people, they may not be for cats. Some perfumes and fabric softeners can even harm a cat's health. In this article, we will explain in detail the effects that scents have on cats.

Cats are sensitive to scents｜Characteristics of their sense of smell and scent-related stress

A cat's sense of smell is several times more sensitive than a human's

There are many olfactory cells in the nose that detect odors, and cats have far more of these than humans do. As a result, a cat's sense of smell is far superior to that of a human, reportedly 14 times more sensitive.

Why "pleasant scents" can be stimulating or unpleasant for cats

What smells "good" to a human is different from what smells "good" to a cat. Much of what humans perceive as pleasant smells are derived from plants. Consequently, perfumes and fabric softeners are infused with these scents and ingredients. However, cats often perceive these as unpleasant odors. One reason is that cats can suffer from poisoning caused by certain plants. Examples include lavender, lilies, and citrus.

The effects of perfumes, fabric softeners, aromatherapy, and air fresheners on cats

These products use scents derived from plants. Because cats can be poisoned by plant odors, strong-smelling items like perfume can be harmful to them. Perfumes and similar products can also cause sneezing and coughing. Aromatherapy oils are particularly dangerous. Almost all essential oils are harmful to cats. These oils are concentrated, fat-soluble substances that cats cannot break down, leading to poisoning.

What scents are dangerous to cats?｜Precautions for perfume, fabric softeners, and aromatherapy

The impact of synthetic fragrances and chemicals in fabric softeners and perfumes

Fabric softeners and perfumes contain various fragrances and chemicals. While it is not fully understood how these affect cats, their liver metabolic pathways differ from those of humans, making it difficult for them to metabolize certain chemicals. This is why they are more prone to poisoning. Additionally, fragrances can irritate the respiratory system and may cause coughing, sneezing, and feline asthma.

Poisoning risks from essential oils and diffusers

Essential oils and aroma diffusers are dangerous for cats. These contain concentrated plant oils that cats cannot break down. Therefore, you should avoid using essential oils around cats. Poisoning can occur from inhaling vaporized oil from a diffuser or from direct contact with the skin.

Reactions such as running away, vomiting, or lethargy

Because a cat's sense of smell is better than a human's, they may run away when they smell an odor they dislike. They may also suffer from repeated vomiting or become sluggish and lethargic.

In one case consulted at our clinic, the use of a scented eye mask caused a cat to experience frequent vomiting.

Do not miss the signs of stress caused by scents

Excessive grooming, inappropriate urination, loss of appetite, etc.

When an unpleasant odor clings to them, cats may groom themselves excessively in an attempt to remove it. When stress increases, symptoms such as inappropriate urination (outside the litter box), loss of appetite, and lethargy may appear.

Behaviors such as hiding from scents or becoming restless

Cats will try to protect themselves by moving away from what they find unpleasant. They may hide to get away from a strong scent, or become restless in their attempt to find a place to hide.

How to distinguish this from other health issues

Various symptoms caused by scents can also be symptoms of other diseases. Typically, these symptoms disappear once the cause is addressed, so if the source of the scent is removed, the symptoms may resolve. If the symptoms do not improve after removing the scent, there may be another health issue or the possibility of poisoning from the fragrance.

Consider scent when living with a cat｜How to handle scents safely

Strategies for choosing unscented or lightly scented products

Cats have a much better sense of smell than humans. Moreover, because their metabolic pathways are different, items that are harmless to people can be toxic to cats. Additionally, some fragrances contain plant-derived ingredients. To avoid putting a burden on your cat, try to choose items that are fragrance-free or have as little scent as possible.

When is it safe to use fabric softeners or perfumes?

There is no known "safe" timing for using fragranced products. Immediately after use, scent components are released most strongly, so contact with the cat at that time is undesirable. Since products like perfume are sprayed directly onto the skin, there is a risk that the product may be transferred to the cat’s fur if you handle them immediately after application. If you must interact with your cat, it is advisable to wash the area where you applied the perfume first.

If an odor is trapped in a room, the cat may end up absorbing it for an extended period. When using products with fragrance, you need to take measures such as ventilating the area.

Lifestyle points to be mindful of for the coexistence of cats and scents

When using scents continuously, you tend to become accustomed to them. As a result, you may not notice the strength of the smell and begin using larger quantities. Perfume is a prime example of this. When people use perfume regularly, they get used to the smell and may apply it in amounts that others find unpleasant, sometimes leading to what is called "scent pollution." Consequently, the cat is also exposed to the scent for long periods, which can lead to bronchitis, poisoning, or allergic reactions to the odor.

If you live with a cat, try to choose items that are fragrance-free or have minimal scents.

Summary｜"Review your scents" for the sake of your cat

What is soothing for people can be a burden for cats

Cats not only have a superior sense of smell compared to humans, but they also suffer from poisoning due to fragrance ingredients because of their metabolic differences. While aromatherapy oils are thought to have positive effects on people, the opposite is true for cats. To make life more comfortable for your cat, try to minimize the use of fragrances.

Simply changing your scents might reduce your cat's stress

The fabric softener or air freshener you currently use might contain plant-derived fragrances that are toxic to your cat. If your cat exhibits coughing, vomiting, or excessive grooming, changing your choice of scents might help reduce these behaviors.

Start by checking the scents in your environment

If your cat seems a bit under the weather or has been sneezing recently, a fragrance might be the culprit. Not only products that emit strong odors, but even subtle ones—like aromatherapy oils—can be harmful. Check your surroundings for such items. If there is no improvement over a long period, the issue may not be related to scent. Be sure to consult with an animal hospital.

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