Herbsmith Herbal Blends Milk Thistle Powdered Dog & Cat Supplement, 150g jar

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About This Item

Details

  • Supports healthy liver function
  • Great for dogs with allergies, digestive issues or harsh side effects of alternatives
  • Silymarin from milk thistle has great antioxidant properties
  • Great for dogs and cats of all sizes and ages
  • Easy-to-administer powder supplement

Ingredient Information

Instructions

FAQ

Questions & Answers

23 Customer Questions


I bought this for my dog. However there is no shelf life on the package. Could you provide some information? Thanks!

Answer by ChewyMay 25, 2018
The Milk Thistle has a shelf life of four years from manufacture, when stored in a cool, dry place.

What other ingredients are in Herbsmith Milk Thistle?

Answer by ChewyMar 15, 2024
This supplement contains one ingredient, organic ground milk thistle seed.

How many mg are in 1/4 tsp?

Answer by ChewyMar 06, 2024
There are 550 milligrams of active ingredients per 1/4 teaspoon.

Do you mix Milk thistle with water

Answer by ChewyAug 21, 2019
Milk Thistle can be put on top or mixed in with food. If your pet refuses it at first, it's recommended to start with a very small amount and gradually build up to the full dosage so they become accustomed to the taste. It can also be mixed into a favorite treat.

4.6
Rated 4.6 out of 5 stars
218 Ratings

Customers Mention

Chewy identifies key considerations with the help of artificial intelligence and our veterinarians.

Effectiveness

76% Positive

Form and Administration

81% Positive

Ingredients

86% Positive

Nutritional Value

81% Positive

143 Customer Reviews



Rated 5 out of 5 stars
By April on Jan 7, 2026

No diarrhea!

Other liquids I have tried have had added oils and it’s given my dog horrible diarrhea, however this powder is doing great with no issues!

Other liquids I have tried have had added oils and it’s given my dog horrible diarrhea, however this powder is doing great with no issues!


Rated 5 out of 5 stars
By Barbara on Nov 9, 2025

Natural Ingredients

I am hoping Herbsmith (Milk Thistle) help my Blue after my vet said Blue liver levels were low. After reading many positive reviews with that being said I am praying

I am hoping Herbsmith (Milk Thistle) help my Blue after my vet said Blue liver levels were low. After reading many positive reviews with that being said I am praying and keeping my finger cross at the same time this product helps Blue.


Rated 3 out of 5 stars
By Robertta on Oct 4, 2025

Milk thistle for liver enzymes

Easy to give but dk if it helped or not. Haven’t done follow up testing yet - not til the end of the month

Easy to give but dk if it helped or not. Haven’t done follow up testing yet - not til the end of the month


Rated 5 out of 5 stars
By Michele on May 24, 2025

Well tolerated

I bought this for my Yorkie who had surgery for her liver shunt a year ago. Her bile acids are still a little high so I thought I’d add this to her diet. I started

I bought this for my Yorkie who had surgery for her liver shunt a year ago. Her bile acids are still a little high so I thought I’d add this to her diet. I started with a very small amount and worked up to the full amount. She has a sensitive stomach and never once did her bowel movements change. Added bonus that she loves the way it tastes. I won’t know for sure until her next bile acid text if it’s actually working but I do like that she tolerated it well!


Rated 5 out of 5 stars
By Jen on Apr 13, 2025

Powder better than capsule

Our 2 Siamese were diagnosed with elevated liver enzymes. My Vet recommended Denamarin Liver supplement if they would eat it. The circular capsule was not successful

Our 2 Siamese were diagnosed with elevated liver enzymes. My Vet recommended Denamarin Liver supplement if they would eat it. The circular capsule was not successful. I could not get them to eat it. It must be given in an empty stomach or 2hrs after food. I even tried putting the capsule on my finger with a little of their canned food. They spit it out. So, after searching on Chewy, I came across Herbsmith Milk Thistle powder that is added to their food. Our cats are on wet canned food. I started with a transition phase of 1/2 a scoop (1/8tsp) 2x/day. Scoop is included in container. After about a week, they get the full scoop (1/4 tsp) 2x/day per instructions. My picky boy Siamese eats his food with the Milk Thistle powder with no problems. I have been using this supplement for 2 weeks. My 15yr old will have another senior exam/blood work in 6mo. Hopefully we will see improvement with the liver results.


Rated 5 out of 5 stars
By Karen on May 8, 2025

My cat doesn’t hate the taste of Milk Thistle after trying this product.

She has a high number for the liver after a visit to the vet and I bought this product to help with her health. I will see the vet in 3 weeks to get a blood re-test

She has a high number for the liver after a visit to the vet and I bought this product to help with her health. I will see the vet in 3 weeks to get a blood re-test for her liver. It’s better than nothing to reduce the numbers before the test.


Rated 1 out of 5 stars
By Holy on Aug 23, 2025

Marcy

Waited to long for delivery, the cat passed away, dont need it now.

Waited to long for delivery, the cat passed away, dont need it now.


Rated 5 out of 5 stars
By Tracy on Jun 7, 2025

Liver detox

I give this to my pups along with heartguard or other prescriptions the day of and up to 7 days after. It seems to help with side effects.

I give this to my pups along with heartguard or other prescriptions the day of and up to 7 days after. It seems to help with side effects.


Rated 5 out of 5 stars
By Cheryl on Sep 2, 2025

Health of my pets

Wanted a good brand and will serve my dogs and cats health.

Wanted a good brand and will serve my dogs and cats health.


Rated 4 out of 5 stars
By Penelope on Feb 19, 2025

Helped a little

My dog ate the milk thistle powder fine mixed with her food. We started the first 2 months with only half the dosage to make sure she had no side effects. It helped

My dog ate the milk thistle powder fine mixed with her food. We started the first 2 months with only half the dosage to make sure she had no side effects. It helped bring her liver enzyme levels down a little, so I increased her dosage to the full amount. The full amount made her lethargic. When I went back to half dosage, she was back to normal. We will see how her enzymes are doing in her next set of blood tests.