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9 Best CBD Oil for Dogs With Cancer – 2024 Reviews & Top Picks

Chantelle Fowler

By Chantelle Fowler

giving CBD oil to dog

Almost half of all dogs over ten will develop cancer,1 so if your beloved pup has been diagnosed with this disease, please know that you’re not alone. At some point in your dog’s cancer journey, you may be curious about trying CBD oil to manage symptoms.

Before you read any further, please note that CBD oil is not a cure for cancer. Some irresponsible manufacturers may try to make this claim, but it has not been proven effective in treating cancer. However, there are many science-backed benefits of offering your pup CBD oil in conjunction with a well-designed veterinarian-approved cancer treatment plan.

Read on to find our reviews of the 9 best CBD oils for dogs with cancer.

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A Quick Comparison of Our Winners (2024)

Rating Image Product Details
Best Overall
Winner
Honest Paws Well CBD Oil Tincture Honest Paws Well CBD Oil Tincture
  • Non-GMO
  • Made from USDA organic hemp oil
  • No additional flavoring added
  • Best Value
    Second place
    CBD Pure CBD Oil for Pets CBD Pure CBD Oil for Pets
  • Affordable price
  • Uses US-grown hemp
  • Third-party tested to ensure purity
  • Premium Choice
    Third place
    Spruce Dog CBD Oil 750 mg Spruce Dog CBD Oil 750 mg
  • Coconut oil as a carrier
  • Milder taste
  • No added flavors
  • HolistaPet CBD Oil For Dogs HolistaPet CBD Oil For Dogs
  • Broad spectrum oil
  • No additives
  • Powerful concentration
  • Penelope's Bloom CBD Oil for Dogs Penelope's Bloom CBD Oil for Dogs
  • Contains chamomile for digestion
  • Full spectrum CBD
  • Fast-acting formula
  • The 9 Best CBD Oil for Dogs With Cancer

    1. Honest Paws Well CBD Oil Tincture – Best Overall

    honest paws CBD oil

    Bottle size 30 ml
    CBD per serving 4 mg to 16 mg
    Full spectrum Yes
    Subscribe and save Yes

    Honest Paws Well CBD Oil Tincture is a non-GMO and third-party lab-tested CBD product. It’s made from USDA organic full-spectrum hemp oil and is manufactured without any additional flavoring your dog may be sensitive to. This oil contains terpenes (a natural component found in the flower of the hemp plant), such as limonene to promote relaxation, eucalyptol for the immune system, and beta-pinene to fight free radicals. This oil is available in different sizes and dose options depending on your dog’s weight. For these reasons, we believe this is the best overall CBD oil for dogs with cancer.

    The biggest downfall of this product is its price. Unfortunately, it’s quite expensive, though consumers can save money by opting for the available subscribe and save feature.

    Pros
    • Non-GMO
    • Made from USDA organic hemp oil
    • No additional flavoring added
    • Can fight free radicals
    • Different size and dose options
    Cons
    • Expensive

    2. CBD Pure CBD Oil for Pets – Best Value

    CBD pure CBD oil

    Bottle size 60 ml
    CBD per serving 3 mg
    Full spectrum Yes
    Subscribe and save Yes

    Cancer treatments are very expensive, so if you’re low on funds, you’ll want the best CBD oil for dogs with cancer for the money. CBD Pure CBD Oil for Pets is the most affordable option available at the time of writing. This product is made using full-spectrum CBD oil extracted from hemp grown on a family farm in Washington. The hemp seed oil in this product is rich in omega fatty acids, which act as an anti-inflammatory agent. This can be beneficial for some types of cancers. In addition, it is third-party tested to ensure optimal purity. This oil has a hemp flavor that most pets take to immediately, especially when mixed into wet food. The bottle contains 60 servings, each containing 3.3 milligrams of CBD.

    There may be trace amounts of THC in this product.

    Pros
    • Affordable price
    • Uses US-grown hemp
    • Third-party tested to ensure purity
    • 60 servings per bottle
    Cons
    • May contain train amounts of THC

    3. Spruce Dog CBD Oil 750 mg – Premium Choice

    spruce dog CBD oil

    Bottle size 30 ml
    CBD per serving 25 mg to 80 mg
    Full spectrum Yes
    Subscribe and save Yes

    If you want the best CBD oil that money can buy, Spruce’s Dog CBD Oil 750 mg is worth considering. This pricy product utilizes coconut oil as the carrier, as it can be easier on your dog’s sensitive digestive system. The taste is often milder due to this carrier oil, too. Some studies suggest coconut oil can help improve the quality of life in human cancer patients. This full-spectrum organic CBD oil has no added flavors, so it’s good for dogs with sensitivities.

    The dosage will depend on your dog’s weight. The company recommends two drops once or twice daily for dogs weighing up to 25 pounds and eight or more drops once or twice daily for dogs over 75 pounds. Depending on your dog’s size, a single bottle may not last very long.

    Pros
    • Coconut oil as a carrier
    • Easier on digestive systems
    • Milder taste
    • No added flavors
    Cons
    • Expensive
    • Bottle may not last long for bigger dogs

    4. HolistaPet CBD Oil For Dogs

    holista pet CBD oil

    Bottle size 30 ml
    CBD per serving 5 mg to 100 mg
    Full spectrum No
    Subscribe and save Yes

    HolistaPet’s CBD Oil For Dogs provides a broad-spectrum CBD oil with 0% THC. Broad-spectrum products do not contain THC at all. This oil is made with additives, preservatives, dairy, or gluten. It’s formulated with pure CO2 extracted broad spectrum CBD oil and hemp seed oil to provide a powerful concentration that’s been third-party lab-tested. All HolistaPet’s products for dogs use organic hemp grown in Oregon and Colorado. This product is available in strengths from 150 mg to 3000 mg per bottle, so there’s a product perfect for your dog’s size.

    Unfortunately, the customer service and shipping for HolistaPet aren’t the most reliable. Delivery can be very slow, and customer service is difficult to get a hold of.

    Pros
    • Broad spectrum oil
    • No additives
    • Powerful concentration
    • Different strength options
    • US-grown hemp
    Cons
    • Unreliable customer service

    5. Penelope’s Bloom CBD Oil for Dogs

    PenelopesBloom CBD oil

    Bottle size 30 ml
    CBD per serving 3 mg to 33.3 mg
    Full spectrum Yes
    Subscribe and save Yes

    Penelope’s Bloom CBD Oil for Dogs is a full-spectrum CBD oil made with organic CBD, chamomile, and MCT oil. Chamomile plants have anti-inflammatory properties, which can benefit dogs suffering from certain types of cancers. The inclusion of chamomile also promotes the relaxation of the stomach muscles to decrease pain in dogs struggling with digestive issues. This product has been third-party lab-tested for potency and efficacy. While some CBD oils can take a while to kick in, Penelope’s Bloom is fast-acting to deliver rapid relaxation.

    While reviewing the company’s CBD oil, it’s important to note that they have a full line of CBD products for pets, including treats, infused peanut butter, balms, and more.

    This oil is pricey, though you can save 20% by using the subscribe and save feature. Unfortunately, the company does not offer flavored CBD oils.

    Pros
    • Contains chamomile for digestion
    • Third-party tested
    • Fast-acting formula
    • Full spectrum CBD
    • Full line-up of CBD products
    Cons
    • Pricey
    • No flavor options

    6. Joy Organics Organic CBD Tincture for Dogs, Cats & Pets

    Joy organic CBD oil

    Bottle size 30 ml
    CBD per serving No
    Full spectrum Yes
    Subscribe and save Yes

    Joy Organics Organic CBD Tincture for Dogs, Cats & Pets is a USDA-certified oil containing just two ingredients—organic olive oil and broad-spectrum hemp extract. This simple formulation allows dogs with sensitivities to still reap the benefits of CBD oil. Olive oil contains antioxidants, such as vitamin E, that may protect your pup’s cells from free radical damage. Free radicals can damage the body’s DNA and an overproduction of them can cause cancer.

    This product is formulated to provide your pup with CBD’s mind and body benefits without any THC. This fast-acting oil contains 7.5 mg of CBD per quarter dropper, 900 mg total. Consumers can check the certificate of analysis for this product online, providing peace of mind that the oil is of the utmost quality.

    Joy Organics manufactures CBD oil products for humans but only has two options for pets: the tincture and CBD dog treats.

    Pros
    • No THC
    • Fast-acting formula
    • Contains only two ingredients
    • Can read lab reports online
    Cons
    • Only two CBD pet products

    7. Petly CBD Pet Hemp CBD Oil for Small Dogs

    petlycbd CBD oil

    Bottle size 30 ml
    CBD per serving 16 mg
    Full spectrum No
    Subscribe and save Yes

    Petly CBD Pet Hemp CBD Oil for Small Dogs is an American-made and third-party lab-tested CBD oil. This formula features phytocannabinoid-rich hemp designed to support your dog’s wellness needs. This hemp was grown in Colorado in an entirely organic process without pesticides. This broad-spectrum oil contains naturally occurring compounds and terpenes and is non-GMO and gluten-free. This oil is available in formulas for medium and large dogs as well.

    We could not find links to the third-party testing results to confirm purity.

    Pros
    • Contains no THC
    • Hemp is grown in USA
    • Non-GMO
    • Different size options available
    Cons
    • No link to third-party test results

    8. CBD FX CBD Oil for Dogs – Bacon Flavored

    cbdfx CBD oil

    Bottle size 30 ml
    CBD per serving xx
    Full spectrum No
    Subscribe and save Yes

    CBD FX CBD Oil for Dogs combines organic and vegan ingredients with broad-spectrum CBD. The oil is extracted from hemp by clean CO2, meaning it is free of potentially toxic solvents that other, cheaper CBD brands may contain. This oil is available in bacon flavor, making it a good option for dogs who may not like the taste of regular CBD oil. It’s made with MCT oil to improve your pup’s ability to absorb it quickly, providing faster relief. This oil is available in four CBD strengths depending on your dog’s size.

    The biggest downside of this product is that it is quite pricey, especially if you’re buying the formulas for larger dogs. It also has a runnier texture than other CBD oils we reviewed, making it difficult to squirt directly into your dog’s mouth.

    Pros
    • Bacon flavor
    • No THC
    • Fast-acting
    • Available in different CBD strengths
    Cons
    • Runny consistency
    • Expensive

    9. Charlotte’s Web Full-Spectrum Hemp Extract Drops

    Bottle size 30 to 100 ml
    CBD per serving 17 mg
    Full spectrum Yes
    Subscribe and save Yes

    Charlotte’s Web Full-Spectrum Hemp Extract Drops are available in two flavors: chicken or unflavored. This product features a full spectrum of hemp-derived cannabinoids blended with easy-to-digest MCT oil. The company doesn’t use pesticides or herbicides on its plants, and every batch goes through a full battery of testing before being sent out.

    It is made from US-grown hemp and contains approximately 17 mg of CBD per serving. This oil has just two ingredients: MCT oil and CBD extract. This is the most common formulation in the industry, which doesn’t set them apart from other companies on the market.

    Charlotte’s Web provides internally-conducted purity and potency test results. Unfortunately, we could not find third-party test results on their website.

    Pros
    • Two flavor options
    • Made from US-grown hemp
    • Easy to digest
    • Organically-grown hemp
    Cons
    • No third-party test results

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    Buyer’s Guide: How to Select the Best CBD Oil for Dogs With Cancer

    Full Spectrum vs Broad Spectrum CBD

    Full-spectrum and broad-spectrum are two terms you should familiarize yourself with before shopping for CBD for your dog.

    Full-spectrum options contain many cannabinoids and compounds of the cannabis plant, such as terpenes. These CBD oils will also include the leaf, stalk, and seeds of the hemp plant, as well as vitamins, essential fats, and protein. This is known as the “entourage effect” which refers to the synergistic benefits derived from using all the compounds in the hemp plant. Full-spectrum products are legally allowed to contain up to 0.3% tetrahydrocannabinol (THC), the psychoactive constituent of cannabis.

    Broad-spectrum CBD contains the same compounds as its full-spectrum counterpart, minus the THC.

    What Science Says About Dogs & CBD

    Unfortunately, very limited research is currently available regarding the use of CBD oil specifically for canines with cancer. But just because no studies prove its effectiveness doesn’t mean it won’t be helpful for your pup.

    CBD has been extensively studied for use in human cancer patients to treat the secondary symptoms of the illness. In addition, some studies suggest that CBD could be a promising anti-cancer drug. Though we’re not there yet, maybe someday in the future CBD can be used to treat secondary symptoms and cancer itself.

    pet dog taking cbd oil from owner
    Image Credit: Nuva Frames, Shutterstock

    A 2018 study looked at mice diagnosed with pancreatic cancer. The mice treated with CBD in addition to chemotherapy, had a threefold increase in the likelihood of survival over treatment with chemo alone.

    CBD also has anti-nausea properties that have been documented in animals like rats and ferrets. This suggests that dogs undergoing chemotherapy may benefit from using CBD oil.

    Some studies suggest CBD can be beneficial for dogs with certain conditions.

    A study from Cornell University shows that CBD can help with pain management in dogs with osteoarthritis.

    Many dog owners report that CBD helps with their pet’s anxiety. Another Cornell study shows that dogs who are given a CBD chew before a stressful event (e.g., a visit to the vet) showed decreased anxiety-related behaviors.

    Choosing the Right Dosage

    Choosing the right CBD dose to relieve your pup from its secondary symptoms can be complicated. Each company’s dosing guidelines are different because the concentration of CBD in their oils will vary from product to product.

    Currently, no standard guidelines for CBD dosage for pups exist. However, most companies recommend around 0.2mg of CBD per pound of body weight. So, for example, if your dog is 15 pounds, you might start with 3 mg of CBD.

    This is a very loose guideline, however. We highly recommend talking with your vet so they can provide you with better dosing information as they know your dog’s condition, symptoms, and body weight.

    Consult With Your Veterinarian

    Have a conversation with your vet before treating your dog with CBD oil. Although it is a natural product available over-the-counter without a prescription, it’s still essential for your vet to know what you’re giving your dog. This is especially important if your pet is taking other medications or undergoing cancer treatment. In addition, there’s always a theoretical risk of drug interaction, so speaking to your vet beforehand can provide peace of mind.

    woman talking to vet
    Image Credit: SeventyFour, Shutterstock

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    Conclusion

    The best overall CBD oil for dogs with cancer is Honest Paws’ Well CBD oil, which contains many terpenes your dog can benefit from. Owners on a budget should consider CBD Pure CBD Oil for Pets for its affordable price and larger bottle size. If you have a bit extra cash to spend, we recommend Spruce’s Dog CBD Oil 750 mg.

    We hope our reviews have helped clear up any confusion you may have had about using CBD oil for your dog with cancer. While you shouldn’t expect the oil to be a miracle cure, it can provide some much-needed relief from symptoms so your dog can have a better quality of life.


    Featured Image Credit: 24K-Production, Shutterstock

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