Four Leaf Rover Protect
- Probiotic
- Dog
- 1
- 4.1 ounces
A multi-strain probiotic and prebiotic powder aimed at digestive and gut health support, sized as a 30 day supply for large dogs.
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How it ranks among the 129 probiotics we track
4.4★ across 592 Amazon ratings, Bayesian-smoothed toward the category average.
592 Amazon ratings, weighted on a log scale so huge counts don't drown everything.
800+ bought on Amazon last month.
Brand identity, imagery, description and spec coverage.
The ProductDome score is separate from the Amazon rating shown above: it combines the Bayesian-smoothed Amazon rating with evidence volume, tracked demand, and data quality across the 129 probiotics we track - how the scorecard works · full probiotics data report. Confidence: medium - useful but incomplete evidence.Last refreshed Aug 4, 2026. Data-computed, not a hands-on test. Compiled by the ProductDome Research Team.
Overview
Four Leaf Rover Protect is a veterinarian formulated probiotic powder for dogs, built around multiple bacterial strains plus prebiotics and antioxidants. This large dog size is meant to cover about 30 days of use.
Beyond the core probiotic strains, the formula adds organic blueberries, chlorella, humic and fulvic acid, and dandelion and burdock root, positioning it as a gut support blend rather than a single strain probiotic. It is aimed at stomach related use rather than general supplementation.
- Multi-strain probiotic powder: Bacillus subtilis, Bacillus coagulans, Saccharomyces boulardii
- Includes organic blueberries and chlorella as antioxidants
- Adds humic acid, fulvic acid, dandelion and burdock root
- 30 day supply sized for large dogs
Who it's for
Fits owners looking for a multi-strain probiotic powder to support a dog's digestive health, particularly for stomach issues. Less relevant for owners wanting a single, isolated probiotic strain rather than a broader blend.
Strengths and trade-offs
Drawn from this product's published specifications.
- Multiple probiotic strains in one powder
- Includes prebiotics and antioxidant ingredients
- Veterinarian formulated for gut health support
- Multi-ingredient blend, not a single isolated strain
- Powder format requires mixing into food rather than a simple chew
Performance notes
The powder combines several probiotic strains, including Bacillus subtilis, Bacillus coagulans and Saccharomyces boulardii, with prebiotic and antioxidant ingredients like organic blueberries and chlorella. Humic and fulvic acid plus dandelion and burdock root round out the blend, which is formulated around gut and stomach support rather than a single targeted strain.
Specifications
| Brand | FOUR |
|---|---|
| Model | 628504393079 |
| Dimensions & fit | |
| Item Weight | 4.1 ounces |
| Dog Breed Size | Large, Medium, Small |
| Included components | |
| Unit Count | 1 |
| Other details | |
| Pet Type | Dog |
| Specific Uses For Product | Stomach |
| Item Form | Powder |
| Flavor | Other |
| Model Number | 628504393079 |
| Upc | 628504393079 |
| Manufacturer Part Number | 628504393079 |
| Asin | B07YN897QP |
| Target Species | Dog |
| Manufacturer | Four Leaf Rover |
| Active Ingredients | Bacillus subtilis, Bacillus coagulans, Saccharomyces boulardii, Organic blueberries , Chlorella pyrenoidosa, Humic acid, Fulvic acid, Organic dandelion root, Organic burdock root |
| Best Sellers Rank | #11,406 in Pet Supplies (See Top 100 in Pet Supplies) #64 in Dog Probiotic Supplements |
| Customer Reviews | {'ratings_count': '592', 'stars': '4.4'} |
Other FOUR probiotics
How it compares
This product against the closest alternatives we track in probiotics.
| Product | Amazon rating | Ratings | ProductDome score |
|---|---|---|---|
| Four Leaf Rover ProtectThis product | 4.4 / 5 | 592 | 4.0 / 5 |
| Nutramax Proviable Probiotics for Dogs and CatsNutramax | 4.6 / 5 | 19,178 | 4.6 / 5 |
| Pro Plan Veterinary Diets FortiFlora Chewable Probiotic Tablets for Dogs and PuppiesPurina Pro Plan | 4.7 / 5 | 5,046 | 4.6 / 5 |
| Zesty Paws Probiotics for DogsZesty | 4.5 / 5 | 26,130 | 4.5 / 5 |
| Native Pet Pumpkin for DogsNative | 4.5 / 5 | 9,721 | 4.5 / 5 |
Similar probiotics from other brands
Questions about the FOUR 628504393079
Common buyer questions answered straight from the product spec data - no fluff, no "it depends".
What probiotic strains are in Four Leaf Rover Protect?
It includes Bacillus subtilis, Bacillus coagulans and Saccharomyces boulardii, along with prebiotic and antioxidant ingredients.
What is this supplement meant to support?
It is formulated for stomach and gut health support in dogs.
How long does the large dog size last?
It is sized as a 30 day supply.