Get

In Your Inbox

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

Does Dog Shampoo Expire? Vet-Verified Types, Storage Tips & FAQ

Pet owner applying shampoo to a dog

Bathing your dog can keep their fur clean and prevent foul odors, which is why it is crucial to choose the right shampoo. Our pups rely on us to provide proper care, so you need to ensure that the shampoo you select suits your dog’s needs.

You probably already have dog shampoo at home if you are a dog parent. But now the question is: “Does dog shampoo expire?” Dog shampoo lasts a long time, but it does have an expiration or best-before day.

Dogs don’t require frequent baths, and many of us forget when we bought the shampoo or want to use the whole bottle before throwing it away. However, that can cause problems. Keep reading to learn more about how long dog shampoo lasts below.

divider single dog paw oct 2024

How Long Does Dog Shampoo Last?

As long as it is unopened, dog shampoo can last for up to 3 years, depending on the manufacturer and the ingredients that a specific shampoo is made with. Natural, organic shampoos tend to have shorter shelf lives. Most commercial products have a time frame indicated in months, which means that manufacturers recommend using the product within that period once it’s been opened. Be sure to keep the lid closed, as oxygen will accelerate the changes in the composition of the chemicals in the shampoo. After being opened, most dog shampoos last only 12–18 months. Of course, the expiration dates vary, so we strongly suggest always checking the bottle.

Regular dog shampoos tend to last longer, commonly up to 36 months, while medical shampoos, such as the ones for fleas, may have shorter lifespans. These have stronger chemicals and require you to be extra careful with the storage, though some products can have longer shelf lives if they’re properly stored. Typically, each shampoo bottle will have a lot number and expiration date.

groomer washing a welsh corgi dog in bath
Image Credit: BONDART PHOTOGRAPHY, Shutterstock

Can You Continue Using Expired Dog Shampoo?

The expiration date is on the bottle for a reason, so using it after it expires could lead to various issues, from the product not cleaning as effectively to causing irritated, dry, itchy skin. It might be okay to use a few days after the expiration date, but it could also cause skin irritation and even an infection.

Basically, using expired dog shampoo is not worth the risk, so it’s best to follow the guidelines on the bottle. Do not buy expired shampoos, and throw out the bottle you have at home once the expiration date passes.

divider single dog paw oct 2024

Where Do You Find the Expiration Date?

The location of the expiration date is different on each shampoo, though it’s commonly on the side, bottom, or back of the bottle. The expiration date should be easily visible so you and any other dog owner know how long it will last.

If There’s No Expiration Date on the Shampoo Bottle

If you encounter a shampoo you would like to purchase for your pup but it doesn’t have an expiration date, you can do a few things to find more information about it. Try to reach the manufacturer for more details, so either check out the website or call the customer service line. If the product doesn’t have an expiration date on the label but has a batch code, you should be able to check it to see how long the bottle lasts.

Also, you could follow the general guidelines for dog shampoo and throw it away after 12–18 months of use.

divider single dog paw oct 2024

How Do You Know If Your Dog’s Shampoo Has Expired?

You should easily recognize expired dog shampoo. It’s best to first check the label on the bottle, but there are other indicators that the shampoo is no longer usable. Commonly, an altered texture and an unusual smell are noticeable.

Here are a few ways to check if the shampoo is still good or not:
  • Check the consistency. When the shampoo is more watery than usual, it is likely expired.
  • Check the smell. If the smell of the shampoo changes, it’s probably going bad.
  • Check the cap. You shouldn’t use the product if there are obvious signs of bacteria, changes in color, or fungus.

What Happens If You Use Expired Dog Shampoo?

If you use expired dog shampoo, your pet can suffer from various skin conditions.

These are the most common issues that you can encounter after using an expired shampoo on your pup:
  • Itching
  • Inflammation
  • Dry, red, flaky skin
  • Skin infections

While in most cases, the cleaning efficacy will simply be diminished, it is not worth taking the risk of causing discomfort to your dog.Our advice is to never use expired shampoo on your furry friend, to prevent all these issues from occurring in the first place.

adorable beagle dog scratching body outdoor on the grass field in the evening
Image Credit: kobkik, Shutterstock

divider dog paws 2 oct 2024

Do Not Use Human Shampoo on Dogs

If you’ve ever wondered whether you can use your shampoo on your dog, the answer is no. There’s a reason that there are canine and human shampoos. The chemicals that human shampoos contain are more acidic and not dog-appropriate. Our furry friends have different pH levels, and human shampoo can damage their skin.

If you use human shampoo on your pup, it will likely cause redness, skin irritation, and possible infections. Our dogs need products that will moisturize their skin and give it the necessary care.

If you need guidance on finding the correct products for your dog’s grooming needs, we suggest you speak to a vet.

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

PangoVet_Mention-in-Content Savings V1

divider single dog paw oct 2024

How to Choose a Dog Shampoo

A nice German shepherd dog takes a bath with soap
Image Credit: Korneeva Kristina, Shutterstock

When purchasing dog shampoo, consider the ingredients and find something that works for your dog. There are a couple of do’s and don’ts.

Do's
  • Look for natural ingredients.
  • Search for soap-free shampoos.
Don'ts
  • Choose a shampoo that has dyes or paraben.
  • Buy a shampoo without checking the ingredients.
  • Use human shampoo for your pup.

If your dog is still young, choose a puppy-appropriate shampoo that is gentler and has a no-tear recipe. You can also make a DIY homemade dog shampoo.

Our Favorite Products

Selecting the right shampoo and conditioner makes the world of a difference when grooming your pup. Our favorite products are the duo by Hepper. The Oatmeal Pet Shampoo is formulated with aloe and oatmeal to soothe skin and hydrate the coat. The Pet Conditioner works at eliminating tangles and taming frizz and static. Both products are pH-balanced and formulated with pet-friendly ingredients, free of harsh soaps, chemicals, and dyes. Give this duo a try to heal and nourish your dog's coat, and leave them with an irresistible just-left-the-spa cucumber and aloe scent. 

Image Product Details
Hepper Oatmeal Pet Shampoo Hepper Oatmeal Pet Shampoo
  • Safe for Dogs & Cats
  • Lightly Scented
  • Soothing Oatmeal
  • Hepper Pet Conditioner Hepper Pet Conditioner
  • Detangles and reduces friction
  • Nourishing, coconut-based formula
  • pH balanced
  • At Dogster, 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 pet company!

     

    divider dog paws 2 oct 2024

    Safe Dog Shampoos

    There are easy ways to recognize safe dog shampoos. They tend to have natural components and commonly undergo rigorous testing to verify that there are no harmful substances. If you’re having trouble finding something suitable, talk with your vet for their recommendations.

    Here is a list of ingredients commonly found in dog shampoos that are safe for your dog:
    • Olive oil
    • Coconut oil
    • Avocado oil
    • Aloe vera
    • Babassuamidopropyl betaine
    • Balsam fir essential oil
    • Beeswax
    • Calendula
    • Castile soap
    • Citric acid
    • Coco-glucose
    • Decyl glucoside
    • Vegetable glycerine
    • Guar gum
    • Glyceryl stearate
    • Panthenol
    • Rosemary
    • Shea butter
    • Sea salt
    • Sodium cocoate
    • Sodium bicarbonate
    • Xanthan gum
    • Vitamin E

    Ingredients to Avoid

    You can find an appropriate shampoo for your dog in almost any pet store. Before purchasing it, read the label to ensure that no harmful substances are in it.

    Here is a list of ingredients to avoid when buying a dog shampoo:
    • Paraben
    • Dyes
    • Bronopol
    • Sodium benzoate
    • Diazolidinyl urea
    • Imidazolidinyl urea
    • Isothiazolinone
    • Glycol
    • DHDH or DMDM hydantoin
    • Sulfate
    • Dish soap
    • Triethanolamine
    • Cocamide-MEA
    • Alcohol 40

    divider single dog paw oct 2024

    Types of Dog Shampoo

    There are various types of dog shampoo, and they’re commonly categorized according to their functions and components.

    These are the most common types of dog shampoo:

    You can choose a shampoo based on your dog’s needs and breed. For instance, your dog may need a medicated shampoo if they have skin allergies.

    Dog Shampoo Storage Tips

    To prolong the lifespan of your dog shampoo, store it properly. The perfect conditions for storage depend on the product’s ingredient list. It’s always best to follow the instructions labeled on the bottle, but you can also follow these guidelines:

    • Keep the dog shampoo in a dry place.
    • Keep the bottle away from heat and direct sunlight.
    • Store the shampoo at room temperature.
    • Do not open the bottle until you need to use it.

    These recommendations can vary depending on the type of shampoo, so read the label carefully or check the manufacturer’s website.

    divider single dog paw oct 2024

    Final Thoughts

    As dog parents, we are responsible for everything that happens to our canines. That’s why we should provide them with proper care, including for their appearance and health. Dog shampoo does expire so it’s not recommended to use on your pup. Even if nothing seems to be wrong with it, it’s better to be safe than sorry. Always check the packaging, and throw away the shampoo bottle if you notice that it expired. You’ll keep your pup cleaner, healthier, and safer by using products that are still valid.

    See Also:


    Featured Image Credit: RossHelen, Shutterstock

    Want content like this delivered to you?

    Sign Up For Our Newsletter

    News, insights, expert advice, and everything dog

    * 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 Dogster 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

    Ask Dr. Paola- Sores, Hearts & HIV (April 14, 2025)

    Welcome to our “Ask Dr. Paola” series, where every Monday we bring expert advice straight from Dr. Paola Cuevas (MVZ) to help our...

    Why is My Dog Drinking a Lot of Water? 9 Vet-Verified Reasons

    Your dog always needs access to fresh drinking water daily. If you have more than one dog, you might need to fill up...

    6 Vacuuming Tips With Dogs: Keeping Your House Clean With a Canine

    The benefits of having a dog far outweigh the drawbacks. However, cleaning up hair that ends up everywhere is one thing most dog...

    Miniature Dachshund Dog Breed: Info, Pictures, Origin & History

    Did you know that the Miniature Dachshund is identical to a regular Dachshund in every way but size? A Miniature Dachshund must weigh...

    More related

    Long Haired Dachshund Grooming Tips (10 Expert Pointers)

    Dachshunds are mischievous, adorable dogs that have delighted people for hundreds of years. The popularity of these little dogs is one of the...

    Earthborn Holistic Dog Food Review 2025: Recalls, Pros & Cons

    Review Summary Earthborn Holistic Dog Food has been in business for nearly 100 years, beginning as a company named Midwestern Pet Foods. As...

    Blue Blood Cane Corso Dog Breed: Info, Pictures, Care & Facts

    The Blue Blood Cane Corso is a hybrid dog breed that’s a cross between the Alapaha Blue Blood Bulldog and the Cane Corso....

    Labrador Retriever Puppies for Sale in Washington: Breeders List 2025

    Originally bred for retrieving birds during a hunt, the Labrador Retriever is one of America’s favorite dog breeds. These days, while they’re still...

    Keep reading

    Can Dogs Eat Clam Chowder? Vet-Verified Nutrition Facts & FAQ

    If you have prepared a hearty bowl of clam chowder, you will undoubtedly notice your dog’s nostrils flaring and tail wagging at the irresistible smell. And while it’s cold out, you may wonder if it’s okay for your companion to...

    Can Dogs Eat_Clam Chowder

    7 Best Budget-Friendly Dog Foods in 2025 – Reviews & Top Picks

    Feeding our dogs can be a monumental task. Sometimes it does seem like they never stop eating! The cost of food and treats can add up quickly and leave pet parents scouring the recesses of the internet and ad booklets...

    labrador with its food close up

    Can Dogs Eat Mackerel? Vet-Verified Nutrition Facts

    Mackerel is a term that applies to various species of swift-moving fish that are mainly part of the Scombridae family. These oily fish are rich in nutrients, provide an excellent source of protein, and are loaded with omega fatty acids.1...

    Can Dogs Eat Mackerel

    Can Dogs Eat Cashews? Vet-Approved Nutrition Facts

    Cashews are a much-loved snack and have great health benefits. The delicious nuts can be eaten all on their own or added to various dishes for a nutty flavor. But what about dogs? Your dog may adore cashews and other...

    Can Dogs Eat Cashews

    Can Dogs Eat Garlic Bread? Vet Approved Facts, Safety Guide & FAQ

    Maybe you had some yummy garlic bread for supper and your dog stole a bite, or you’re just wondering if you can feed them some. Can dogs eat garlic bread? The short and simple answer is no. Garlic bread is...

    Can Dogs Eat Garlic Bread

    Can Dogs Eat Liverwurst? Vet-Verified Nutrition Facts & Risks

    Liverwurst is a type of sausage made primarily of liver, spices, and other ingredients. If that sounds like something your dog might enjoy, you’re not wrong, but can dogs eat liverwurst? Liverwurst often contains toxic ingredients, so you’ll need to...

    Can Dogs Eat_liverwurst

    Can Dogs Eat Peanuts? Vet-Approved Nutrition Guide

    Our canine companions love peanut butter. There are even photography books dedicated entirely to pictures of dogs who love eating this tasty and beloved treat! Dog parents love giving their pups peanut butter, too, especially as a means of getting...

    Can Dogs Eat Peanuts

    Senior Dog Food vs Regular: The Differences, Pros & Cons

    As dog owners know, the food that we feed our pups is essential to keeping them healthy. When our dogs start getting older, their bodies change, and so do their nutritional needs. After your dog reached a certain age (which...

    Dogster_Senior vs Regular Dog Food