Protect is one of the best probiotics for dogs.  
BENEFITS
It aids in supporting the general health of your dog
Adds necessary prebiotics and probiotics to your dog's digestive system
Supports brain function
Aids in the detoxification of toxins, chemicals and pesticides
Manages Yeast and supports health of the immune system
Aids digestion
Aids in fighting pathogens
Helps in the digestion of food
 
DIRECTIONS
Give orally daily or as directed by your veterinarian.
Body Weight
Amount Per Day
Daily Cost & Supply
5-25 lbs
1/2 tsp daily
 $0.50/day (60 day supply)
26-50 lbs
3/4 tsp daily
$0.67/day (45 day supply)
51-75 lbs
1 tsp daily
$1.00/day (30 day supply)
76-100 lbs
1 1/2 tsp daily
$1.30/day (23 day supply)
101 + lbs
1 tbsp daily
$2.49/day (12 day supply)
Net Contents: 4.1oz (115.5g)
INGREDIENTS
Active Ingredients per 3.85 g (1 tsp):
Certified Organic Wild Blueberry Powder ..................  1.45 g
Bentonite Clay ..............................................................  1.4 g
Chlorella Pyrenoidosa ..............................................  200 mg
Certified Organic Dandelion Root Powder ................  150 mg
Certified Organic Burdock Root Powder ...................  150 mg
HumicSure™ (Humic and Fulvic Acid) .......................  150 mg
Saccharomyces boulardii ................................... 5 Billion CFU
Bacillus coagulens, Bacillus subtilius Blend ....... 2 Billion CFU
Inactive Ingredients: None
Testimonials
No More Dirt Eating
My beagle was diagnosed with grade 3 mast cell tumors in March 2021 and given 4 months to live. A holistic vet recommended the supplements to add to make it a balanced diet but I noticed my dog was going outside and eating dirt ... and I mean a lot. After researching I switched most of her supplements to Four Leaf Rover ones including the Protect soil-based pro/prebiotic and guess what ... no more eating dirt or my other dogs poop! I'm pretty impressed with this product.
Gut Support
Our 2 year old mini Labradoodle has had a mysterious paw pad ailment. He had been on different antibiotics for two months. I was very concerned about his gut health, so I did some research on adding probiotics to his diet. I learned that Saccharomycces boulardii is resistant to antibiotics that was particularly good for pups on antibiotics. As I did a search on this probiotic, Four Leaf Rover popped up with the PROTECT supplement. I decided to try it. I love this product and I believe it's helped my little guy through the last two months. He never got diarrhea or upset stomach. I really appreciate the research done on each product as well as the environmentally conscious packaging. I'm pretty sure I'm a life long customer! 
Wonderful
This probiotic is wonderful. Our Frenchie came to us from the breeder loaded with Giardia. It took over two months and multiple meds and antibiotics to rid him of this horrible parasite. Our vet put him on a strict diet, but his stool was still soft. After one dose of Protect his stools firmed up and continued to improve. He is doing great now. Great product.