Get

In Your Inbox

Catster is reader-supported. When you buy via links on our site, we may earn an affiliate commission at no cost to you. Learn more.

Is Your Cat’s Shampoo Poisonous? Dangerous Ingredients Explained

grey cat bath shampoo bubbles

The majority of healthy cats don’t need to be bathed because they’re perfectly capable of keeping themselves clean, thank you very much. That said, some circumstances require bathing. Hairless cats, for example, need regular bathing, and cats with skin conditions or medical problems that prevent them from grooming themselves properly may need to be bathed depending on what a vet says.

Unfortunately, some ingredients are toxic to cats, so it’s essential to rule out the inclusion of these ingredients in the product you choose for bathing your cat. Read on to find out what to avoid.

divider 2 cats

Which Ingredients Are Bad for Cats?

There are quite a few ingredients to avoid when shopping for cat shampoo. Using products containing these ingredients could result in a range of issues, including irritation, allergic reactions, dryness, flakiness, and sore skin—all of which can exacerbate underlying skin issues.  If they get into the eyes, this causes pain and irritation.

Some ingredients, like phenol, are toxic to cats and can cause some serious consequences, including liver and kidney damage and neurological issues. Unfortunately, phenol can also be fatal to cats, as can other toxic ingredients.1 This is why it’s so essential to check the label before you use any new products on your cat.

Other ingredients that should be avoided:
  • Parabens
  • Pyrethroids
  • Phenol
  • Pyrethrins
  • Permethrin
  • Artificial fragrances
  • Artificial colors
  • Dyes
  • Sulfates
  • Formaldehyde
  • Alcohol
  • Mineral oil
  • Phthalates
  • Sodium lauryl
  • Camphor
  • Glycol
  • D-Limonene and Linalool
  • Polysorbates
  • Methylchloroisothiazolinone & other isothiazolinones
  • Ethyl acetate
  • Stearates
  • Benzaldehyde
  • Sodium benzoate
wet cat in the bathtub having shower
Image Credit by: Vladeep, Shutterstock

What About Essential Oils?

Some essential oils that are toxic to cats—like tea tree oil—are commonly used in cat shampoos, but in very diluted amounts. As long as it’s a product specially formulated for use on cats, the concentration should be very low and not considered toxic, but we strongly recommend checking with a vet first. This goes for any new shampoo you use on your cat.

If you need to speak with a vet but can't get to one, head over to PangoVet. It's an online service where you can talk to a vet online and get the advice you need for your pet — all at an affordable price!

PangoVet_Mention-in-Content for PangoVet2 save money

With the exception of vet–approved products formulated specifically for cats with diluted concentrations, you should never apply essential oils on your cat’s skin. Topical application or oral ingestion can be fatal.

Can I Use Human Shampoo?

No, human shampoo is unsafe for cats and should never be used to bathe them. For one thing, a human’s pH balance is different from that of a cat, and human shampoos are formulated to be more acidic than a pet shampoo would be. A cat also has fewer layers of skin than we do, so they’re more sensitive. Using a human shampoo would interfere with your cat’s pH balance, drying out the skin.

In addition, many of the ingredients contained in human shampoos (including some listed above) aren’t safe for cats. Sulfate sodium salts, parabens, and artificial fragrances and colors are some of the ingredients commonly found in human shampoos, all of which can potentially irritate a cat’s skin.

Can I Use Dog Shampoo?

No. Some ingredients used in dog shampoos are safe for dogs, but not for cats. To give you an example, permethrin—an ingredient used in flea control products for dogs—is toxic to cats, as are several essential oils. Therefore, do not use human or dog shampoos on cats. The only exceptions are shampoos formulated for both cats and dogs and that are clearly marked as such.

veterinarian holding the cat
Image Credit by: H_Ko, Shutterstock

How to Pick a Safe Shampoo for Your Cat

Here are some factors to take into consideration when hunting for the right shampoo for your moggy:

  • Ask a vet for recommendations.
  • Keep a list of harmful ingredients handy to check labels.
  • Check that the product is formulated specifically for cats.
  • Look for something gentle that doesn’t strip the natural oils away.
  • Look for easy-rinse shampoos without sulfates.
  • Even products labeled “natural” or “organic” may contain ingredients harmful to cats.
  • Avoid brands that do not list the ingredients.

There are lots of pet shampoos to choose from, but some are much better than others. We love these two options created by Hepper, each offering something uniquely different. The Colloidal Oatmeal Pet Shampoo is an excellent choice for cats who require the occasional full bath, and the Waterless No-Rinse Dry Shampoo is perfect for felines that prefer to stay dry! Both are made with all-natural ingredients and pH-balanced formulas designed to gently lift away dirt and debris, leaving your cat's coat and skin soft and hydrated. Find out which is right for you in the table below. 

Image Product Details
Hepper Colloidal Oatmeal Pet Shampoo Hepper Colloidal Oatmeal Pet Shampoo
  • Effective cleaning formula
  • pH balanced for your kitty’s skin
  • Moisturizes as it cleans
  • Hepper Waterless No Rinse Pet Shampoo Hepper Waterless No Rinse Pet Shampoo
  • Cleanses & deodorizes without water
  • Natural ingredients & pH balanced
  • Fresh scent
  • At Catster, we’ve admired Hepper for many years and decided to take a controlling ownership interest so that we could benefit from the outstanding designs of this cool cat company!

    divider 2 cats

    Final Thoughts

    To reiterate, most cats don’t need to be bathed, but if yours does, it’s essential to do your research and carefully check what goes into the shampoo you use on them.

    Not every brand lists its ingredients—it’s “generally” not required in the case of pet shampoos according to the American Pet Products Association. We strongly recommend avoiding such products and sticking to vet-recommended, reputable brands that list their ingredients.


    Featured Image Credit: Reshetnikov_art, Shutterstock

    Want content like this delivered to you?

    Sign Up For Our Newsletter

    News, insights, expert advice, and everything cat

    * By submitting, you agree to our Terms & Conditions and Privacy & Cookies Policy.

    How useful was this post?

    Click on a star to rate (you can leave written feedback after clicking submit)

    Help us improve Catster for pet parents!

    Your feedback really matters.

    What did you like about this post? Also how can we improve it?

    Join the conversation

    Leave a Reply

    You’re very welcome to leave a comment or question. Please know that all comments must meet our community guidelines, and your email address will NOT be published. Let’s have a positive and constructive conversation.

    Talk With A Vet Online

    Peace of mind,
    anywhere, anytime

    Affordable vet advice

    When Cats Are Terrified of the Outside World: Olga’s Fears

    Hi, I’m Christopher! Read my introduction to learn more about me and my silly Russian Blue cat, Olga. Outdoor cats enjoy their freedom...

    Siberian Cat Grooming: 4 Vet-Approved Tips & Tricks

    Siberian cats have long, thick coats, and it’s necessary to maintain their coat as part of keeping your cat healthy and happy. Coat...

    Do Cats Get Tired of Meowing? Feline Sounds Facts

    Some cats are all mouth—meowing, meowing, meowing. Do they ever get sick of it? Well, if they do, they probably would just stop,...

    Feral Cat vs. Stray Cat: Main Differences Explained By Our Vet

    The phrase “feral cat” is often used to describe a cat that isn’t owned by anyone and seems to be living on their...

    More related

    Is Your Cat Missing or Just on an Adventure? How to Tell (With Vet-Reviewed Tips)

    Losing a cat is a heart-wrenching experience. But is your cat really lost or have they just wandered off? Although it’s hard to...

    How to Potty Train a Kitten: Vet-Approved Tips & Tricks

    If you’ve landed on this post, odds are that you just added a new kitten to your life. Given that your new bundle...

    Black Persian Cat: Info, Pictures, Facts & History

    The Persian cat has long impressed onlookers with its regal appearance and stunning coat. They are one of the oldest cat breeds to...

    How to Keep Cats Out of Mulch: 12 Vet-Reviewed Tips

    Neighborhood cats roaming around our yards is not something everyone enjoys. They are generally harmless, but they may visit you often, particularly if...

    Keep reading

    Can I Crate My Cat During the Day? Vet-Approved Tips & FAQ

    If your cat gets into trouble when left home alone, you might be desperate for a solution, especially if they’re prone to destructive behaviors. Maybe you’ve even wondered if you can crate your cat during the day like a dog....

    Grey cat fell asleep in crate

    Does Garlic Kill Fleas On Cats? Vet Reviewed Effectiveness Safety Explained

    In addition to warding off vampires, garlic has multiple dietary and medicinal virtues. This bulbous plant can spice up the flavor of almost any dish while taking care of your cardiovascular health, protecting your liver, and combatting infectious diseases. However,...

    Garlic

    How to Care for a Cat with FIV: 8 Vet-Verified Tips for Better Feline Care

    Although an incurable disease, feline immunodeficiency virus (FIV) doesn’t automatically mean a cat is doomed to a short life. This common infectious disease impacts a cat’s immune system, making them more vulnerable to illness and infection. However, cats with FIV...

    cat being observed by a female veterinarian

    Why Do Cats Like Crinkly Things? 5 Possible Reasons & Risks

    Cats are intrigued by objects that make a crisp, crackling sound. Something about their curious personalities makes the compelling sound of a crinkly toy irresistible, much like how they’ll clamor to the chime of a bell. But why, out of...

    Cute cat on outdoor chair playing with empty plastic water bottle

    10 Best Cat Toothpastes of 2025 – Reviews & Top Picks

    Oral hygiene plays a significant role in the overall health of our feline friends. As humans do, cats also need a regular dental hygiene routine to keep their teeth and gums in top condition, prevent tartar buildup, and freshen their...

    cat getting teeth brushed

    Why Do People Hate Cats? What Science Tells Us (Vet-Reviewed)

    Cat lovers think that their favorite animals can generally do no wrong. People who adore felines often find them loving, attentive, playful, and adaptable. They love cats’ independence and sweet companionship and feel honored that such self-sufficient and intelligent creatures...

    red flame point siamese in the grass

    How to Train a Cat to Stay Indoors: 7 Vet-Approved Tips

    Of the over 160 million cats in the United States, roughly 30—80 million are unowned and roaming free1. Many cats with owners also live outdoors, at least part of the time. Outdoor cats pose a risk to wildlife and are...

    cute cat rearing up licking finger of the woman kneeling on the floor

    Will a Cat Fake a Limp for Sympathy? Vet-Verified Behavior Explanation

    Cats are stereotypically perceived as being independent, yet they enjoy the attention of their human family members. Have you ever wondered whether a cat would fake a limp or illness just to get sympathy and attention? Would your cat actually...

    sick cat with feline disease