Best Liver Supplements For Dogs of 2026

Last updated on 01/04/2026
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1
Hepatosyl Liver Function Capsules 90 x 100mg

Hepatosyl Liver Function Capsules 90 x 100mg

YJDayy
Why we love it
  • Supports healthy liver function.
  • Essential for pets' nutrition.
  • High-quality trusted brand.
Main Highlights
  • Hepatosyl Liver Function Capsules 90 x 100mg
  • Brand: Monster Pet Supplies
  • Product type:ANIMAL NUTRITIONAL SUPPLEMENT
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9.8
Exceptional
9.8
Exceptional
YJDayy

Hepatosyl Liver Function Capsules 90 x 100mg

Why we love it
  • Supports healthy liver function.
  • Essential for pets' nutrition.
  • High-quality trusted brand.
Main Highlights
  • Hepatosyl Liver Function Capsules 90 x 100mg
  • Brand: Monster Pet Supplies
  • Product type:ANIMAL NUTRITIONAL SUPPLEMENT
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Value for Money
2
Denamarin for Large Dogs Tablets 425 mg, Pack of 30 Tablets

Denamarin for Large Dogs Tablets 425 mg, Pack of 30 Tablets

Protexin
Why we love it
  • Enhances pet's liver health.
  • Protects and regenerates liver cells.
  • Easy-dosing, oxidation-resistant tablets.
Main Highlights
  • Denamarin provides high-level support for your pet’s liver
  • Denamarin contains SAMe and Silybin which are powerful active ingredients that help to protect and regenerate liver cells
  • Easy to dose tablets
  • Enteric coated tablets to protect them from being oxidised
  • Different sizes for different breeds. Store in a cool, dry place. Keep tablets in original blister pack until used. The tablets should not be split or crumbled.
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9.7
Exceptional
9.7
Exceptional
Protexin

Denamarin for Large Dogs Tablets 425 mg, Pack of 30 Tablets

Why we love it
  • Enhances pet's liver health.
  • Protects and regenerates liver cells.
  • Easy-dosing, oxidation-resistant tablets.
Main Highlights
  • Denamarin provides high-level support for your pet’s liver
  • Denamarin contains SAMe and Silybin which are powerful active ingredients that help to protect and regenerate liver cells
  • Easy to dose tablets
  • Enteric coated tablets to protect them from being oxidised
  • Different sizes for different breeds. Store in a cool, dry place. Keep tablets in original blister pack until used. The tablets should not be split or crumbled.
Show More
3
Animed Direct Samylin Tablets for Medium Breed Dogs - Pack of 30

Animed Direct Samylin Tablets for Medium Breed Dogs - Pack of 30

YFCACT
Why we love it
  • Supports overall dog health.
  • Ideal for medium breed dogs.
  • Easy-to-administer tablet form.
Main Highlights
  • Animed Direct Samylin Tablets for Medium Breed Dogs - Pack of 30
  • Product type: ANIMAL NUTRITIONAL SUPPLEMENT
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9.5
Superb
9.5
Superb
YFCACT

Animed Direct Samylin Tablets for Medium Breed Dogs - Pack of 30

Why we love it
  • Supports overall dog health.
  • Ideal for medium breed dogs.
  • Easy-to-administer tablet form.
Main Highlights
  • Animed Direct Samylin Tablets for Medium Breed Dogs - Pack of 30
  • Product type: ANIMAL NUTRITIONAL SUPPLEMENT
Show More
4
maxxipaws maxxiSAMe Advanced SAM-e Powder Supplement - Liver, Cognitive & Joint Support for Dogs, 150g

maxxipaws maxxiSAMe Advanced SAM-e Powder Supplement - Liver, Cognitive & Joint Support for Dogs, 150g

maxxipaws
10% Off
Why we love it
  • Supports canine cognitive and liver functions.
  • Professional recommended for pet's health.
  • Easily administered with pet's food.
Main Highlights
  • LIVER HEALTH CARE: A supplement for any pet dog with liver issues. Our key ingredient SAM-e, can aid the hepatic (liver) function, support cell regeneration & safeguard against further damage.
  • AID COGNITIVE FUNCTION: maxxiSAMe acts as a brain function stimulant containing SAM-e, which can support the dopamine function in the brain, to assist cognitive performance.
  • ADDITIONAL NATURAL INGREDIENTS: Artichoke can help to stimulate the production of bile in the liver. B Vitamins aid liver metabolic function & are recommended for liver problems. Choline & Inositol assist in removing liver fatty deposits.
  • SUPPORT FOR ALL DOGS: Suitable for any canine breed. May help slow mental decline & aid alertness in senior or older dogs; plus supports joint health & promotes positive mood.
  • GIVEN WITH FOOD: Unlike inconvenient tablets, our natural flavour powder supplement is given easily with food, for quick absorption; add 1 scoop to food daily per 14kg of weight. Suitable for small, medium & large dogs.
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9.3
Superb
9.3
Superb
maxxipaws

maxxipaws maxxiSAMe Advanced SAM-e Powder Supplement - Liver, Cognitive & Joint Support for Dogs, 150g

10% Off
Why we love it
  • Supports canine cognitive and liver functions.
  • Professional recommended for pet's health.
  • Easily administered with pet's food.
Main Highlights
  • LIVER HEALTH CARE: A supplement for any pet dog with liver issues. Our key ingredient SAM-e, can aid the hepatic (liver) function, support cell regeneration & safeguard against further damage.
  • AID COGNITIVE FUNCTION: maxxiSAMe acts as a brain function stimulant containing SAM-e, which can support the dopamine function in the brain, to assist cognitive performance.
  • ADDITIONAL NATURAL INGREDIENTS: Artichoke can help to stimulate the production of bile in the liver. B Vitamins aid liver metabolic function & are recommended for liver problems. Choline & Inositol assist in removing liver fatty deposits.
  • SUPPORT FOR ALL DOGS: Suitable for any canine breed. May help slow mental decline & aid alertness in senior or older dogs; plus supports joint health & promotes positive mood.
  • GIVEN WITH FOOD: Unlike inconvenient tablets, our natural flavour powder supplement is given easily with food, for quick absorption; add 1 scoop to food daily per 14kg of weight. Suitable for small, medium & large dogs.
Show More
5
Denamarin for Medium Dogs Tablet 225 mg, Pack of 30 Tablets

Denamarin for Medium Dogs Tablet 225 mg, Pack of 30 Tablets

Protexin
13% Off
Why we love it
  • Supports your pet's liver.
  • Contains SAMe and Silybin.
  • Different sizes for breeds.
Main Highlights
  • Denamarin provides high-level support for your pet’s liver
  • Denamarin contains SAMe and Silybin
  • Enteric coated tablets to protect them from being oxidised
  • Different sizes for different breeds
Show More
9.1
Superb
9.1
Superb
Protexin

Denamarin for Medium Dogs Tablet 225 mg, Pack of 30 Tablets

13% Off
Why we love it
  • Supports your pet's liver.
  • Contains SAMe and Silybin.
  • Different sizes for breeds.
Main Highlights
  • Denamarin provides high-level support for your pet’s liver
  • Denamarin contains SAMe and Silybin
  • Enteric coated tablets to protect them from being oxidised
  • Different sizes for different breeds
Show More
6
Protexin Veterinary Denamarin Advanced for Dogs Over 10kg – Antioxidant & Liver Support Tablets – Supports Normal Liver Function – 30 Tablets

Protexin Veterinary Denamarin Advanced for Dogs Over 10kg – Antioxidant & Liver Support Tablets – Supports Normal Liver Function – 30 Tablets

Protexin
Why we love it
  • Supports liver health effectively.
  • Boosts natural immunity in dogs.
  • Easy-to-give, flavour-free tablets.
Main Highlights
  • SUPPORTS NORMAL LIVER FUNCTION: Veterinary-formulated supplement designed to help support normal liver function and antioxidant activity in dogs over 10kg.
  • WITH ADVANCED ANTIOXIDANT SUPPORT: Contains SAMe and silybin to help support the liver’s natural antioxidant processes and overall liver health.
  • HELPS SUPPORT WHOLE-BODY WELLBEING: Liver health plays an important role in digestion, immunity and overall vitality, supporting your dog’s general wellbeing.
  • EASY-TO-GIVE TABLETS: Supplied as tablets suitable for daily feeding, with clear guidance to support accurate dosing by body weight.
  • VETERINARY-FORMULATED & TRUSTED: Developed by Protexin Veterinary, specialists in advanced nutritional and organ-support supplements for pets.
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8.9
Excellent
8.9
Excellent
Protexin

Protexin Veterinary Denamarin Advanced for Dogs Over 10kg – Antioxidant & Liver Support Tablets – Supports Normal Liver Function – 30 Tablets

Why we love it
  • Supports liver health effectively.
  • Boosts natural immunity in dogs.
  • Easy-to-give, flavour-free tablets.
Main Highlights
  • SUPPORTS NORMAL LIVER FUNCTION: Veterinary-formulated supplement designed to help support normal liver function and antioxidant activity in dogs over 10kg.
  • WITH ADVANCED ANTIOXIDANT SUPPORT: Contains SAMe and silybin to help support the liver’s natural antioxidant processes and overall liver health.
  • HELPS SUPPORT WHOLE-BODY WELLBEING: Liver health plays an important role in digestion, immunity and overall vitality, supporting your dog’s general wellbeing.
  • EASY-TO-GIVE TABLETS: Supplied as tablets suitable for daily feeding, with clear guidance to support accurate dosing by body weight.
  • VETERINARY-FORMULATED & TRUSTED: Developed by Protexin Veterinary, specialists in advanced nutritional and organ-support supplements for pets.
Show More
7
PetExx Hepatic 30 tablets - SAMe & Silybin (Milk Thistle) supplement formulated by vets to aid liver health in pets - manufactured in UK

PetExx Hepatic 30 tablets - SAMe & Silybin (Milk Thistle) supplement formulated by vets to aid liver health in pets - manufactured in UK

PetExx
Why we love it
  • Affordable liver support for dogs.
  • Supports liver cell regeneration.
  • Detoxifies with natural antioxidants.
Main Highlights
  • Dogs like humans can suffer liver damage - vets prescribe products the same as Hepatic Boost but at vastly inflated prices to make higher profits
  • Hepatic Boost helps support the regeneration of liver cells
  • SAMe is a natural ingredient produced by dogs but if the liver is damaged the process slows. SAMe has strong antioxidant properties and has a detoxifying effect on the liver.
  • Silybin more commonly known as Milk Thistle is also an antioxidant which removes excess toxins and support chemicals in the body which control inflammation
  • Vitamins C & E work synergistically to relieve oxidative stress by absorbing free radicals reducing the amount of harmful toxins
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8.7
Excellent
8.7
Excellent
PetExx

PetExx Hepatic 30 tablets - SAMe & Silybin (Milk Thistle) supplement formulated by vets to aid liver health in pets - manufactured in UK

Why we love it
  • Affordable liver support for dogs.
  • Supports liver cell regeneration.
  • Detoxifies with natural antioxidants.
Main Highlights
  • Dogs like humans can suffer liver damage - vets prescribe products the same as Hepatic Boost but at vastly inflated prices to make higher profits
  • Hepatic Boost helps support the regeneration of liver cells
  • SAMe is a natural ingredient produced by dogs but if the liver is damaged the process slows. SAMe has strong antioxidant properties and has a detoxifying effect on the liver.
  • Silybin more commonly known as Milk Thistle is also an antioxidant which removes excess toxins and support chemicals in the body which control inflammation
  • Vitamins C & E work synergistically to relieve oxidative stress by absorbing free radicals reducing the amount of harmful toxins
Show More
8
Denamarin Advanced for Dogs under 10kg 30 Tablets

Denamarin Advanced for Dogs under 10kg 30 Tablets

Protexin
Why we love it
  • Supports liver health effectively.
  • Strengthens natural immunity.
  • Easy-to-administer, flavour-free tablets.
Main Highlights
  • Protexin Veterinary Denamarin Advanced for Dogs comes in packs of 30 easy-to-give tablets that provide high-level antioxidant support for your dog’s liver.
  • Support your dog’s liver – Saccharomyces cerevisiae contains the postbiotic SAMe, which supports the liver’s antioxidant function, while silybin contains antioxidants that help support liver health
  • Support natural immunity – a healthier liver and gut both play an important role in whole-body health, while the beta-glucans in Protexin Veterinary Denamarin Advanced for Dogs have been shown to stimulate their immune system
  • 30 simple-to-give, flavour-free tablets – Protexin Veterinary Denamarin Advanced for Dogs is available in two sizes; choose the one that’s right for your dog’s weight, then use the handy on-pack chart to work out how many they need each day
  • Scientifically developed and trusted by vets – dedicated to producing innovative, research-based products, Protexin Veterinary, the UK’s No. 1 veterinary digestive supplement manufacturer.* *Source: Kynetec VetTrak, Nutraceuticals Market. Subsector definition - 'Supplement, Companion Animal, Large Animal and Equine - Gastro (by manufacturer)'. MAT to end of September 2025 (Value Sales).
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8.7
Excellent
8.7
Excellent
Protexin

Denamarin Advanced for Dogs under 10kg 30 Tablets

Why we love it
  • Supports liver health effectively.
  • Strengthens natural immunity.
  • Easy-to-administer, flavour-free tablets.
Main Highlights
  • Protexin Veterinary Denamarin Advanced for Dogs comes in packs of 30 easy-to-give tablets that provide high-level antioxidant support for your dog’s liver.
  • Support your dog’s liver – Saccharomyces cerevisiae contains the postbiotic SAMe, which supports the liver’s antioxidant function, while silybin contains antioxidants that help support liver health
  • Support natural immunity – a healthier liver and gut both play an important role in whole-body health, while the beta-glucans in Protexin Veterinary Denamarin Advanced for Dogs have been shown to stimulate their immune system
  • 30 simple-to-give, flavour-free tablets – Protexin Veterinary Denamarin Advanced for Dogs is available in two sizes; choose the one that’s right for your dog’s weight, then use the handy on-pack chart to work out how many they need each day
  • Scientifically developed and trusted by vets – dedicated to producing innovative, research-based products, Protexin Veterinary, the UK’s No. 1 veterinary digestive supplement manufacturer.* *Source: Kynetec VetTrak, Nutraceuticals Market. Subsector definition - 'Supplement, Companion Animal, Large Animal and Equine - Gastro (by manufacturer)'. MAT to end of September 2025 (Value Sales).
Show More
9
Vet Expert Hepatiale Advanced Liver Support Supplement for Large Dogs - Detoxifying and With Valerian Root– 40 Capsules

Vet Expert Hepatiale Advanced Liver Support Supplement for Large Dogs - Detoxifying and With Valerian Root– 40 Capsules

Vet Expert
Why we love it
  • Supports liver function effectively.
  • Contains essential liver nutrients.
  • Recommended by veterinary professionals.
Main Highlights
  • Supports Liver Function: Specifically formulated to support and maintain proper liver function in dogs and cats, this advanced dog liver supplement and cat liver supplement promotes overall liver health and vitality
  • Comprehensive Liver Health Formula: Contains essential ingredients like L-Glutamine, L-Arginine, soya bean extract, betaine, milk thistle extract, and zinc, all of which are crucial for pet liver support and to enhance liver function while protecting liver cells.
  • Phospholipid Support with Lecithin: Derived from soya beans, lecithin is rich in phospholipids like phosphatidylcholine, essential for the structure and function of liver cells (hepatocytes). This key component of our pet liver support supplement is vital for maintaining liver health in both dogs and cats
  • Amino Acid Benefits: L-Arginine and L-Glutamine play critical roles in nitrogen metabolism and ammonia detoxification, supporting the liver's ability to process and eliminate toxins, making this an ideal dog liver supplement and cat liver supplement
  • Hepatoprotective Milk Thistle: Milk thistle extract, rich in silymarin, offers protective and stabilising effects on liver cells, along with strong antioxidant properties to combat free radicals, making it an essential part of any pet liver support regimen
  • Antioxidant and Detoxification Support: Betaine increases glutathione levels, aiding in cell protection against free radicals and supporting the liver's detoxification processes, ensuring comprehensive pet liver support.
  • Zinc for Enzyme Function: Zinc is vital for numerous enzymatic reactions in the liver, including the metabolism of glucose and fats, and plays a role in stabilising cell structures, further enhancing the benefits of this dog liver supplement and cat liver supplement.
  • Enhances Protein Synthesis: The combination of silymarin and phospholipids supports protein biosynthesis in liver cells, aiding in liver regeneration and function, making this supplement a key component of any pet liver support strategy
  • Veterinary Recommended: Trusted by veterinary professionals, this dog liver supplement and cat liver supplement is ideal for pets of all ages, providing essential liver support for long-term health and wellbeing
Show More
8.7
Excellent
8.7
Excellent
Vet Expert

Vet Expert Hepatiale Advanced Liver Support Supplement for Large Dogs - Detoxifying and With Valerian Root– 40 Capsules

Why we love it
  • Supports liver function effectively.
  • Contains essential liver nutrients.
  • Recommended by veterinary professionals.
Main Highlights
  • Supports Liver Function: Specifically formulated to support and maintain proper liver function in dogs and cats, this advanced dog liver supplement and cat liver supplement promotes overall liver health and vitality
  • Comprehensive Liver Health Formula: Contains essential ingredients like L-Glutamine, L-Arginine, soya bean extract, betaine, milk thistle extract, and zinc, all of which are crucial for pet liver support and to enhance liver function while protecting liver cells.
  • Phospholipid Support with Lecithin: Derived from soya beans, lecithin is rich in phospholipids like phosphatidylcholine, essential for the structure and function of liver cells (hepatocytes). This key component of our pet liver support supplement is vital for maintaining liver health in both dogs and cats
  • Amino Acid Benefits: L-Arginine and L-Glutamine play critical roles in nitrogen metabolism and ammonia detoxification, supporting the liver's ability to process and eliminate toxins, making this an ideal dog liver supplement and cat liver supplement
  • Hepatoprotective Milk Thistle: Milk thistle extract, rich in silymarin, offers protective and stabilising effects on liver cells, along with strong antioxidant properties to combat free radicals, making it an essential part of any pet liver support regimen
  • Antioxidant and Detoxification Support: Betaine increases glutathione levels, aiding in cell protection against free radicals and supporting the liver's detoxification processes, ensuring comprehensive pet liver support.
  • Zinc for Enzyme Function: Zinc is vital for numerous enzymatic reactions in the liver, including the metabolism of glucose and fats, and plays a role in stabilising cell structures, further enhancing the benefits of this dog liver supplement and cat liver supplement.
  • Enhances Protein Synthesis: The combination of silymarin and phospholipids supports protein biosynthesis in liver cells, aiding in liver regeneration and function, making this supplement a key component of any pet liver support strategy
  • Veterinary Recommended: Trusted by veterinary professionals, this dog liver supplement and cat liver supplement is ideal for pets of all ages, providing essential liver support for long-term health and wellbeing
Show More
10
Dorwest Milk Thistle Tablets for Dogs and Cats, 200 Tablets, Supports Liver Function, Antioxidant for Dogs, Immune System Heath, Natural Supplement

Dorwest Milk Thistle Tablets for Dogs and Cats, 200 Tablets, Supports Liver Function, Antioxidant for Dogs, Immune System Heath, Natural Supplement

DORWEST HERBS
Why we love it
  • Supports pets' liver function.
  • Boosts immune system health.
  • Made with natural ingredients.
Main Highlights
  • MILK THISTLE TABLETS FOR DOGS & CATS: help maintain good liver function in your pet with Dorwest’s high-grade Milk Thistle Tablets for dogs and cats, providing natural support for the liver using whole fruit extract. High in silymarin and other active compounds
  • HELPS LIVER FUNCTION: our pets’ livers are involved in almost all body processes – Dorwest Milk Thistle helps maintain the stability of liver cells, helping to protect the liver against damage and prevent the infiltration of toxins and infectious agents
  • IMMUNE SYSTEM HEALTH: Milk Thistle acts as an antioxidant that neutralises ‘free radicals’ produced during metabolic activity – something pets’ livers do a lot of – while supporting the immune cells that are essential in fighting infections
  • NATURAL SUPPORT FOR THE LIVER & BODY: Healthy oils such as linoleic acid, flavenoids and vitamin E are all known for their antioxidant (to neutralise free radicals) and immune supportive action and all are present in the Milk Thistle fruit
  • 75 YEARS OF HERBAL PET CARE: we’ve been supporting pets’ health care since 1948 – trusted by vets and with over 75 years of expertise behind us, Dorwest Milk Thistle Tablets for dogs and cats reliably help support pets with liver disease
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8.7
Excellent
8.7
Excellent
DORWEST HERBS

Dorwest Milk Thistle Tablets for Dogs and Cats, 200 Tablets, Supports Liver Function, Antioxidant for Dogs, Immune System Heath, Natural Supplement

Why we love it
  • Supports pets' liver function.
  • Boosts immune system health.
  • Made with natural ingredients.
Main Highlights
  • MILK THISTLE TABLETS FOR DOGS & CATS: help maintain good liver function in your pet with Dorwest’s high-grade Milk Thistle Tablets for dogs and cats, providing natural support for the liver using whole fruit extract. High in silymarin and other active compounds
  • HELPS LIVER FUNCTION: our pets’ livers are involved in almost all body processes – Dorwest Milk Thistle helps maintain the stability of liver cells, helping to protect the liver against damage and prevent the infiltration of toxins and infectious agents
  • IMMUNE SYSTEM HEALTH: Milk Thistle acts as an antioxidant that neutralises ‘free radicals’ produced during metabolic activity – something pets’ livers do a lot of – while supporting the immune cells that are essential in fighting infections
  • NATURAL SUPPORT FOR THE LIVER & BODY: Healthy oils such as linoleic acid, flavenoids and vitamin E are all known for their antioxidant (to neutralise free radicals) and immune supportive action and all are present in the Milk Thistle fruit
  • 75 YEARS OF HERBAL PET CARE: we’ve been supporting pets’ health care since 1948 – trusted by vets and with over 75 years of expertise behind us, Dorwest Milk Thistle Tablets for dogs and cats reliably help support pets with liver disease
Show More