10 bestImmune Booster For Dogsof December 2025
112M consumers helped this year.
18% off
1
Fera Pets Mushroom Supplement for Dogs & Cats - for Cognition, Vitality & Immune System – Organic Lion’s Mane, Shiitake Mushrooms & More - 120 Scoops
Fera Pet Organics
10.0
10% off
2
Deley Naturals Probiotics Plus Chews for Dogs, Gut Health Supplement, 5 Billion CFU's, Digestive Enzymes, Prebiotics, Dog Allergies, Diarrhea, Yeast, Pumpkin Flavor, 90 Chews - Made in The US
Deley Naturals
10.0
10% off
3
Zesty Paws Probiotic Chews for Dogs - Gut Flora & Immune System Support - Premium DE111 Bacillus subtilis - Pumpkin Flavour - 90 Count
Zesty Paws
9.8
16% off
4
Pet Wellbeing Mushroom Immune Gold for Dogs & Cats - Vet-Formulated - Holistic Immune Support with Reishi, Maitake, Turkey Tail - Natural Herbal Supplement 8 oz (237 ml)
Pet Wellbeing
9.5
17% off
5
Fera Pets Immune Goat Milk Cat & Dog Food Topper – Cat & Dog Allergy & Immunity Aid – Probiotic with Colostrum and Turkey Tail Mushroom - 60 Servings
Fera Pet Organics
9.3
OtherUp to 10% off
Open Farm Immune Chews, Dog Supplement, Dog Vitamins, Promotes Healthy Skin and Immune Function Using Traceable and Vet-Approved Ingredients, 12.7 oz, 90 Count
Pet Wellbeing Immune Sure for Dogs - Vet-Formulated - Immune System Support & Protection - Natural Herbal Supplement 2 oz (59 ml)
Immunity for Dogs by Doggie Herbs | Organic Mushrooms Complex and Human Grade Dog - Canine Health & Immunity Herbs for Dogs Herbal Supplements - Powder Container w Herbal Blend - 100g w Dosage Scoop
ZENAPET Allergy Immune Support Supplement for Dogs, Superfood 100% Human-Grade with Turkey Tail Mushroom, Prebiotics for Gut Health, Itchy Skin, Seasonal Allergies & Yeast - for Small to Large Breeds
5% off
6
NaturVet Senior Advanced 5-in-1 Support Dog Supplement – Helps Support Immune System, Heart, Liver, Cognitive Function, Eye Health – Includes Ginkgo Biloba, Lutein – 60 Ct.
NaturVet
9.0
11% off
7
Mushroom Max Advance Immune Support for Pets 60ct
NaturVet
8.7
10% off
8
NaturVet Advanced Probiotics & Enzymes Plus Vet Strength PB6 Probiotic for Dogs, 120 ct Soft Chews, Made in USA
NaturVet
8.4
9
All-in-One Dog Powder Supplement, Skin & Coat Health, Joint Support, Digestive Health, Vitamin and Mineral Support, Overall Health Boost For Your Dog, Made by NaturVet
NaturVet
8.1
10
Zenwise Allergy & Immune Bites, Peanut Butter, 0.7 Pound
Zesty Paws
7.8
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