FOUR LEAF ROVER Yeast Support for Dogs - Veterinarian Formulated with Organic Herbs - Supports Healthy Skin, Ears & Paws - 30 Day Medium Dog Supply Review
By Marcus Bell · Dog nutrition editor · Published 2026-05-04 · Updated 2026-06-29
This is an herbal powder rather than a bacterial probiotic, built around a blend of organic herbs and MCT powder meant to support gut lining and yeast balance, and its 3.8 star average from a smaller review pool suggests results have been more mixed than the bacterial probiotics in this silo.
Owners specifically looking for an herbal, veterinarian formulated approach to yeast balance and gut lining support rather than a bacterial strain probiotic.
Skip if
You want a probiotic with named bacterial CFU counts, or you are looking for a product with a stronger review track record in this category.
Form Powder
Flavor Beef
Benefits Digestive Health
Best for Gut Lining
Breed size Large, Medium, Small
Weight 51 Grams
Priced 60% above the category median ($24.99 across 128 tracked models)
Our scorecard
3.8/5overall
Owner rating3.8/5
3.8 average across 335 owner ratings
Popularity1.7/5
335 owner reviews, fewer 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 gluten free beef flavored powder is built around a proprietary blend of organic herbs, including pau d'arco, goldenseal, olive leaf, ginger root, fennel, oregano leaf, and thyme leaf, combined with C8 and C10 MCT powder. Unlike most other products in this silo, it does not list bacterial strains or a CFU count, instead positioning itself around gut lining and yeast balance support using herbs.
It ships as a 51 gram, 30 day supply sized for a medium dog, at 39.99 dollars, which is one of the higher per container prices in this category given the smaller net weight.
With 335 reviews and a 3.8 star average, plus about 400 units bought in the past month, it has the lowest rating and among the smaller review counts of the products covered here, suggesting a more mixed track record than the bacterial probiotics and enzyme chews in this silo.
Pros
Herbal blend offers an alternative approach to gut lining and yeast balance support
Gluten free beef flavored powder formula
Veterinarian formulated positioning with a defined 30 day supply
Suitable across large, medium, and small dogs
Cons
Lowest star rating, 3.8, among comparable products in this silo
No bacterial CFU count, since this is an herbal formula rather than a probiotic
Smaller container size relative to its price
Smaller review base makes the rating less statistically settled
Specifications
Form
Powder
Flavor
Beef
Benefits
Digestive Health
Best for
Gut Lining
Breed size
Large, Medium, Small
Weight
51 Grams
Performance notes
This product stands apart from the rest of the silo because it relies on herbs and MCT powder rather than live bacterial cultures, so it is formulated to support gut lining and yeast balance rather than deliver a CFU count. The 3.8 star average, the lowest among the products reviewed here, suggests owners should weigh the herbal approach and price against the more consistently rated bacterial probiotics in this category.
What buyers say
A 3.8 star average from 335 reviews is the weakest rating profile among comparable products in this silo, and the roughly 400 monthly purchases reflect a smaller, more niche buyer base.
Is this a probiotic like the other products in this category?
Not exactly. It is an herbal powder built around organic herbs and MCT powder rather than named bacterial strains with a CFU count, positioned to support gut lining and yeast balance in a different way than typical probiotic chews or powders.
What herbs are included in the formula?
The blend includes pau d'arco, organic goldenseal, organic olive leaf, organic ginger root, organic fennel, organic oregano leaf, and organic thyme leaf, combined with C8 and C10 MCT powder. These are listed as a proprietary blend rather than individually dosed amounts.
How long does one container last?
The 51 gram container is sized as a 30 day supply for a medium dog, so larger dogs may need a higher dose or shorter supply window. This is a general wellness product, not a substitute for veterinary care if your dog has a diagnosed yeast or skin condition.
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