Milk Thistle for Dogs, Liver & Kidney Support for Large & Small Pets, Milk Thistle for Cats to Care for Digestion, Specialist-Approved Liquid Formula with Salmon Flavor, GMO Free, 2 Oz Bottle Review
By Marcus Bell · Dog nutrition editor · Published 2026-05-28 · Updated 2026-06-28
This salmon flavored liquid milk thistle supplement is built around a single well known liver support herb, packaged in a 2 ounce bottle for both large and small dogs, and its 4.4 star average suggests owners find it an easy addition to a dog's routine.
Owners looking for a simple, GMO free liquid milk thistle supplement to support liver health as part of a dog's general wellness routine.
Skip if
Your dog has a diagnosed liver condition needing specific veterinary treatment, since this is a general wellness supplement and not a substitute for prescribed care.
Priced 57% below the category median ($27.97 across 42 tracked models)
Our scorecard
4.4/5overall
Owner rating4.4/5
4.4 average across 432 owner ratings
Popularity3.0/5
432 owner reviews, more than most models here
The overall score is owner satisfaction weighted by how many reviews back it, so a high rating from few reviews counts for less. The bars below show where this model stands against the other dog food and health supplements we track in this category on price, popularity and size. Context, not marks against it, and our read of the data, not a lab test.
Overview
['This 2 ounce liquid supplement is built around milk thistle, a botanical long used in pet wellness for liver support, and it comes in a salmon flavor meant to make dosing easier for dogs who are picky about additives in food or water. The formula is labeled GMO free and made for both large and small pets.', 'Milk thistle supplements like this one are generally used to support normal liver function and healthy digestion as part of everyday wellness rather than to treat a diagnosed liver disease. The liquid format lets you adjust the amount added to food, which can be useful for dogs of different sizes.', 'At $11.99 for a 2 ounce bottle, this is an accessible entry point into liver support supplements, and with 432 reviews and a 4.4 star average plus about 500 bought in the past month, it has a solid and growing following.']
Pros
Budget-friendly price for a liquid milk thistle formula
Salmon flavor may help with palatability when added to food
GMO free formula suitable for large and small dogs
Solid 4.4 star rating across 432 reviews
Cons
Liquid milk thistle alone is not a treatment for diagnosed liver disease
Detailed ingredient and dosing specs are not listed on the product record
Single ingredient formula, so it will not address other unrelated health concerns
Performance notes
As a liquid rather than a chew or tablet, this formula can be measured out and mixed into food, which gives you flexibility across different dog sizes. Milk thistle is generally used as a gentle, ongoing wellness ingredient rather than a fast-acting remedy, so consistent use over time is how these formulas are typically used.
What buyers say
With 432 reviews averaging 4.4 stars and about 500 bought in the past month, this product shows healthy, growing demand for a straightforward, affordably priced liver support option.
No. Milk thistle is formulated to help support normal liver function as part of general wellness, not to treat or cure diagnosed liver disease. If your dog has liver issues, work with your vet on a full treatment plan.
Is this formula safe for small dogs?
The label markets it for both large and small pets, but as with any supplement, check with your vet on the right amount for your dog's size.
What flavor is this supplement?
It is a salmon flavored liquid, meant to make it easier to mix into food or give directly.
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