Free $25 eGift card with your $49+ order

Dog Vitamins for Immune System

Slide 1 of 9
PetLabCo. Allergy Immune Probiotic Chew Allergy Supplement for Small Dogs, 30 count slide 1 of 9
PetLabCo. Allergy Immune Probiotic Chew Allergy Supplement for Small Dogs, 30 count slide 2 of 9
PetLabCo. Allergy Immune Probiotic Chew Allergy Supplement for Small Dogs, 30 count slide 3 of 9
PetLabCo. Allergy Immune Probiotic Chew Allergy Supplement for Small Dogs, 30 count slide 4 of 9
PetLabCo. Allergy Immune Probiotic Chew Allergy Supplement for Small Dogs, 30 count slide 5 of 9
PetLabCo. Allergy Immune Probiotic Chew Allergy Supplement for Small Dogs, 30 count slide 6 of 9
PetLabCo. Allergy Immune Probiotic Chew Allergy Supplement for Small Dogs, 30 count slide 7 of 9
PetLabCo. Allergy Immune Probiotic Chew Allergy Supplement for Small Dogs, 30 count slide 8 of 9
PetLabCo. Allergy Immune Probiotic Chew Allergy Supplement for Small Dogs, 30 count slide 9 of 9
PetLabCo. Allergy Immune Probiotic Chew Allergy Supplement for Small Dogs, 30 count slide 1 of 9
PetLabCo. Allergy Immune Probiotic Chew Allergy Supplement for Small Dogs, 30 count slide 2 of 9
PetLabCo. Allergy Immune Probiotic Chew Allergy Supplement for Small Dogs, 30 count slide 3 of 9
PetLabCo. Allergy Immune Probiotic Chew Allergy Supplement for Small Dogs, 30 count slide 4 of 9
PetLabCo. Allergy Immune Probiotic Chew Allergy Supplement for Small Dogs, 30 count slide 5 of 9
PetLabCo. Allergy Immune Probiotic Chew Allergy Supplement for Small Dogs, 30 count slide 6 of 9
PetLabCo. Allergy Immune Probiotic Chew Allergy Supplement for Small Dogs, 30 count slide 7 of 9
PetLabCo. Allergy Immune Probiotic Chew Allergy Supplement for Small Dogs, 30 count slide 8 of 9
PetLabCo. Allergy Immune Probiotic Chew Allergy Supplement for Small Dogs, 30 count slide 9 of 9
PetLabCo. Allergy Immune Probiotic Chew Allergy Supplement for Small Dogs, 30 count slide 1 of 9
PetLabCo. Allergy Immune Probiotic Chew Allergy Supplement for Small Dogs, 30 count slide 2 of 9
PetLabCo. Allergy Immune Probiotic Chew Allergy Supplement for Small Dogs, 30 count slide 3 of 9
PetLabCo. Allergy Immune Probiotic Chew Allergy Supplement for Small Dogs, 30 count slide 4 of 9
PetLabCo. Allergy Immune Probiotic Chew Allergy Supplement for Small Dogs, 30 count slide 5 of 9
PetLabCo. Allergy Immune Probiotic Chew Allergy Supplement for Small Dogs, 30 count slide 6 of 9
PetLabCo. Allergy Immune Probiotic Chew Allergy Supplement for Small Dogs, 30 count slide 7 of 9
PetLabCo. Allergy Immune Probiotic Chew Allergy Supplement for Small Dogs, 30 count slide 8 of 9
PetLabCo. Allergy Immune Probiotic Chew Allergy Supplement for Small Dogs, 30 count slide 9 of 9

Loading options...

Loading options...

PetLabCo. Allergy Immune Probiotic Chew Allergy Supplement for Small Dogs, 30 count

Rated 4.1 out of 5 stars
49
$37.95 Chewy Price
($1.27/ea) Price per Unit
Autoship Price

Free 1-3 day delivery on first-time orders
Free 365-day returns

Slide 1 of 7
Alkazone Alkaline Water Drops Supplement for Dogs & Cats, 1.25-fl oz bottle slide 1 of 7
Alkazone Alkaline Water Drops Supplement for Dogs & Cats, 1.25-fl oz bottle slide 2 of 7
Alkazone Alkaline Water Drops Supplement for Dogs & Cats, 1.25-fl oz bottle slide 3 of 7
Alkazone Alkaline Water Drops Supplement for Dogs & Cats, 1.25-fl oz bottle slide 4 of 7
Alkazone Alkaline Water Drops Supplement for Dogs & Cats, 1.25-fl oz bottle slide 5 of 7
Alkazone Alkaline Water Drops Supplement for Dogs & Cats, 1.25-fl oz bottle slide 6 of 7
Alkazone Alkaline Water Drops Supplement for Dogs & Cats, 1.25-fl oz bottle slide 7 of 7
Alkazone Alkaline Water Drops Supplement for Dogs & Cats, 1.25-fl oz bottle slide 1 of 7
Alkazone Alkaline Water Drops Supplement for Dogs & Cats, 1.25-fl oz bottle slide 2 of 7
Alkazone Alkaline Water Drops Supplement for Dogs & Cats, 1.25-fl oz bottle slide 3 of 7
Alkazone Alkaline Water Drops Supplement for Dogs & Cats, 1.25-fl oz bottle slide 4 of 7
Alkazone Alkaline Water Drops Supplement for Dogs & Cats, 1.25-fl oz bottle slide 5 of 7
Alkazone Alkaline Water Drops Supplement for Dogs & Cats, 1.25-fl oz bottle slide 6 of 7
Alkazone Alkaline Water Drops Supplement for Dogs & Cats, 1.25-fl oz bottle slide 7 of 7
Alkazone Alkaline Water Drops Supplement for Dogs & Cats, 1.25-fl oz bottle slide 1 of 7
Alkazone Alkaline Water Drops Supplement for Dogs & Cats, 1.25-fl oz bottle slide 2 of 7
Alkazone Alkaline Water Drops Supplement for Dogs & Cats, 1.25-fl oz bottle slide 3 of 7
Alkazone Alkaline Water Drops Supplement for Dogs & Cats, 1.25-fl oz bottle slide 4 of 7
Alkazone Alkaline Water Drops Supplement for Dogs & Cats, 1.25-fl oz bottle slide 5 of 7
Alkazone Alkaline Water Drops Supplement for Dogs & Cats, 1.25-fl oz bottle slide 6 of 7
Alkazone Alkaline Water Drops Supplement for Dogs & Cats, 1.25-fl oz bottle slide 7 of 7

Alkazone Alkaline Water Drops Supplement for Dogs & Cats, 1.25-fl oz bottle

$18.85 Chewy Price
($15.08/fl oz) Price per Unit
$24.00 List Price
Autoship Price

Free delivery on first-time orders over $35
Free 365-day returns
Arrives between Sep 4 and Sep 8

Slide 1 of 6
Hemp Heros Mussh & Co Clarity Lions Mane Mushroom Liquid Supplement for Dogs & Cats, 1.69-fl oz bottle slide 1 of 6
Hemp Heros Mussh & Co Clarity Lions Mane Mushroom Liquid Supplement for Dogs & Cats, 1.69-fl oz bottle slide 2 of 6
Hemp Heros Mussh & Co Clarity Lions Mane Mushroom Liquid Supplement for Dogs & Cats, 1.69-fl oz bottle slide 3 of 6
Hemp Heros Mussh & Co Clarity Lions Mane Mushroom Liquid Supplement for Dogs & Cats, 1.69-fl oz bottle slide 4 of 6
Hemp Heros Mussh & Co Clarity Lions Mane Mushroom Liquid Supplement for Dogs & Cats, 1.69-fl oz bottle slide 5 of 6
Hemp Heros Mussh & Co Clarity Lions Mane Mushroom Liquid Supplement for Dogs & Cats, 1.69-fl oz bottle slide 6 of 6
Hemp Heros Mussh & Co Clarity Lions Mane Mushroom Liquid Supplement for Dogs & Cats, 1.69-fl oz bottle slide 1 of 6
Hemp Heros Mussh & Co Clarity Lions Mane Mushroom Liquid Supplement for Dogs & Cats, 1.69-fl oz bottle slide 2 of 6
Hemp Heros Mussh & Co Clarity Lions Mane Mushroom Liquid Supplement for Dogs & Cats, 1.69-fl oz bottle slide 3 of 6
Hemp Heros Mussh & Co Clarity Lions Mane Mushroom Liquid Supplement for Dogs & Cats, 1.69-fl oz bottle slide 4 of 6
Hemp Heros Mussh & Co Clarity Lions Mane Mushroom Liquid Supplement for Dogs & Cats, 1.69-fl oz bottle slide 5 of 6
Hemp Heros Mussh & Co Clarity Lions Mane Mushroom Liquid Supplement for Dogs & Cats, 1.69-fl oz bottle slide 6 of 6
Hemp Heros Mussh & Co Clarity Lions Mane Mushroom Liquid Supplement for Dogs & Cats, 1.69-fl oz bottle slide 1 of 6
Hemp Heros Mussh & Co Clarity Lions Mane Mushroom Liquid Supplement for Dogs & Cats, 1.69-fl oz bottle slide 2 of 6
Hemp Heros Mussh & Co Clarity Lions Mane Mushroom Liquid Supplement for Dogs & Cats, 1.69-fl oz bottle slide 3 of 6
Hemp Heros Mussh & Co Clarity Lions Mane Mushroom Liquid Supplement for Dogs & Cats, 1.69-fl oz bottle slide 4 of 6
Hemp Heros Mussh & Co Clarity Lions Mane Mushroom Liquid Supplement for Dogs & Cats, 1.69-fl oz bottle slide 5 of 6
Hemp Heros Mussh & Co Clarity Lions Mane Mushroom Liquid Supplement for Dogs & Cats, 1.69-fl oz bottle slide 6 of 6

Hemp Heros Mussh & Co Clarity Lions Mane Mushroom Liquid Supplement for Dogs & Cats, 1.69-fl oz...

Rated 4.3 out of 5 stars
10
$49.99 Chewy Price
($29.58/oz) Price per Unit
Autoship Price

Free 1-3 day delivery on first-time orders
Free 365-day returns

Slide 1 of 9
Pawfect Wild Vigor Gut Guard Bites All Natural Grain-Free Freeze-Dried Dog Digestive Supplement Chews, 60 count slide 1 of 9
Pawfect Wild Vigor Gut Guard Bites All Natural Grain-Free Freeze-Dried Dog Digestive Supplement Chews, 60 count slide 2 of 9
Pawfect Wild Vigor Gut Guard Bites All Natural Grain-Free Freeze-Dried Dog Digestive Supplement Chews, 60 count slide 3 of 9
Pawfect Wild Vigor Gut Guard Bites All Natural Grain-Free Freeze-Dried Dog Digestive Supplement Chews, 60 count slide 4 of 9
Pawfect Wild Vigor Gut Guard Bites All Natural Grain-Free Freeze-Dried Dog Digestive Supplement Chews, 60 count slide 5 of 9
Pawfect Wild Vigor Gut Guard Bites All Natural Grain-Free Freeze-Dried Dog Digestive Supplement Chews, 60 count slide 6 of 9
Pawfect Wild Vigor Gut Guard Bites All Natural Grain-Free Freeze-Dried Dog Digestive Supplement Chews, 60 count slide 7 of 9
Pawfect Wild Vigor Gut Guard Bites All Natural Grain-Free Freeze-Dried Dog Digestive Supplement Chews, 60 count slide 8 of 9
Pawfect Wild Vigor Gut Guard Bites All Natural Grain-Free Freeze-Dried Dog Digestive Supplement Chews, 60 count slide 9 of 9
Pawfect Wild Vigor Gut Guard Bites All Natural Grain-Free Freeze-Dried Dog Digestive Supplement Chews, 60 count slide 1 of 9
Pawfect Wild Vigor Gut Guard Bites All Natural Grain-Free Freeze-Dried Dog Digestive Supplement Chews, 60 count slide 2 of 9
Pawfect Wild Vigor Gut Guard Bites All Natural Grain-Free Freeze-Dried Dog Digestive Supplement Chews, 60 count slide 3 of 9
Pawfect Wild Vigor Gut Guard Bites All Natural Grain-Free Freeze-Dried Dog Digestive Supplement Chews, 60 count slide 4 of 9
Pawfect Wild Vigor Gut Guard Bites All Natural Grain-Free Freeze-Dried Dog Digestive Supplement Chews, 60 count slide 5 of 9
Pawfect Wild Vigor Gut Guard Bites All Natural Grain-Free Freeze-Dried Dog Digestive Supplement Chews, 60 count slide 6 of 9
Pawfect Wild Vigor Gut Guard Bites All Natural Grain-Free Freeze-Dried Dog Digestive Supplement Chews, 60 count slide 7 of 9
Pawfect Wild Vigor Gut Guard Bites All Natural Grain-Free Freeze-Dried Dog Digestive Supplement Chews, 60 count slide 8 of 9
Pawfect Wild Vigor Gut Guard Bites All Natural Grain-Free Freeze-Dried Dog Digestive Supplement Chews, 60 count slide 9 of 9
Pawfect Wild Vigor Gut Guard Bites All Natural Grain-Free Freeze-Dried Dog Digestive Supplement Chews, 60 count slide 1 of 9
Pawfect Wild Vigor Gut Guard Bites All Natural Grain-Free Freeze-Dried Dog Digestive Supplement Chews, 60 count slide 2 of 9
Pawfect Wild Vigor Gut Guard Bites All Natural Grain-Free Freeze-Dried Dog Digestive Supplement Chews, 60 count slide 3 of 9
Pawfect Wild Vigor Gut Guard Bites All Natural Grain-Free Freeze-Dried Dog Digestive Supplement Chews, 60 count slide 4 of 9
Pawfect Wild Vigor Gut Guard Bites All Natural Grain-Free Freeze-Dried Dog Digestive Supplement Chews, 60 count slide 5 of 9
Pawfect Wild Vigor Gut Guard Bites All Natural Grain-Free Freeze-Dried Dog Digestive Supplement Chews, 60 count slide 6 of 9
Pawfect Wild Vigor Gut Guard Bites All Natural Grain-Free Freeze-Dried Dog Digestive Supplement Chews, 60 count slide 7 of 9
Pawfect Wild Vigor Gut Guard Bites All Natural Grain-Free Freeze-Dried Dog Digestive Supplement Chews, 60 count slide 8 of 9
Pawfect Wild Vigor Gut Guard Bites All Natural Grain-Free Freeze-Dried Dog Digestive Supplement Chews, 60 count slide 9 of 9

Pawfect Wild Vigor Gut Guard Bites All Natural Grain-Free Freeze-Dried Dog Digestive Supplement...

Rated 3.7 out of 5 stars
19
$23.65 Chewy Price
($0.40/ea) Price per Unit
Autoship Price

Free 1-3 day delivery on first-time orders over $35
Free 365-day returns

PetCultures Hip & Joint Powder Supplement for Dogs, 30 count

Rated 5 out of 5 stars
1
$9.95 Chewy Price
($0.34/ea) Price per Unit
$39.95 List Price
Autoship Price

Free 1-3 day delivery on first-time orders over $35
Free 365-day returns

FullBucket Health Daily Probiotic Peanut Butter Flavored Powder Supplement for Dogs, 30 count

Rated 4.3 out of 5 stars
20
$30.85 Chewy Price
($1.03/ea) Price per Unit
Autoship Price

Free 1-3 day delivery on first-time orders over $35
Free 365-day returns

Austin and Kat Turkey Tail Powder Immune Support Supplement for Dogs, 2.1-oz jar

$29.95 Chewy Price
($14.27/oz) Price per Unit
Autoship Price

Free 1-3 day delivery on first-time orders over $35
Free 365-day returns

Balanced Breed Canine Probiotic & Odor Control Natural Pumpkin Flavored Soft Chew Digestive Aid...

Rated 4.2 out of 5 stars
33
$31.99 Chewy Price
($0.54/ea) Price per Unit
Autoship Price

Free 1-3 day delivery on first-time orders over $35
Free 365-day returns

Austin and Kat Lion's Mane Powder Brain Health Supplement for Dogs, 2.1-oz jar

$29.95 Chewy Price
($14.27/oz) Price per Unit
Autoship Price

Free 1-3 day delivery on first-time orders over $35
Free 365-day returns

Aloeplus Immune, Digestive & Skin Support Liquid Supplement for Dogs, 8.45-fl oz bottle

Rated 5 out of 5 stars
1
$29.99 Chewy Price
($3.55/fl oz) Price per Unit
Autoship Price

Free 1-3 day delivery on first-time orders over $35
Free 365-day returns

New

DNA Pet Happy Immune Support Supplement for Dogs, 3.5-oz canister

$32.49 Chewy Price
($9.29/oz) Price per Unit
$32.99 List Price
Autoship Price

Free 1-3 day delivery on first-time orders over $35
Free 365-day returns

Natura Petz Organics Turmeric The Magnificent Dog Supplement, 90 count

Rated 4.4 out of 5 stars
17
$29.99 Chewy Price
($0.34/ea) Price per Unit
Autoship Price

Free 1-3 day delivery on first-time orders over $35
Free 365-day returns

New

ZMA Pets Fruiting Body Extract Turkey Tail & Mushroom Flavored Powder Immune Supplement for Dog...

$24.99 Chewy Price
($7.89/oz) Price per Unit
Autoship Price

Free 1-3 day delivery on first-time orders over $35
Free 365-day returns

Vitality Science Celloquent Multi-Nutrient Immune Support Powder Supplement for Dogs, 60-gr

$48.95 Chewy Price
($0.82/g) Price per Unit
Autoship Price

Free 1-3 day delivery on first-time orders
Free 365-day returns

PawTides Forever Young Spray Skin & Coat Supplement for Dogs, 2-fl oz

$70.00 Chewy Price
($35.00/fl oz) Price per Unit
Autoship Price

Free delivery on first-time orders
Free 365-day returns
Arrives between Sep 4 and Sep 8

Loading options...

Loading options...

TopDog Health MSM Joint Boost Natural Chicken Flavor Powder Dog Supplement, 1-lb jar

Rated 4.8 out of 5 stars
23
$29.95 Chewy Price
($29.95/lb) Price per Unit
Autoship Price

Free 1-3 day delivery on first-time orders over $35
Free 365-day returns

Natura Petz Organics Tissue Issues Dog Supplement, 90 count

Rated 3.7 out of 5 stars
3
$34.99 Chewy Price
($0.39/ea) Price per Unit
Autoship Price

Free 1-3 day delivery on first-time orders over $35
Free 365-day returns

Loading options...

Loading options...

The Petz Kitchen Holistic Super Food Broth Tissue & Cell Support Beef Flavor Concentrate Powder...

Rated 3 out of 5 stars
2
$24.95 Chewy Price
($5.55/oz) Price per Unit
Autoship Price

Free 1-3 day delivery on first-time orders over $35
Free 365-day returns

Strawfield Pets Super Chews Allergy Relief with Colostrum & Probiotics Immune Support Soft Chew...

Rated 3.7 out of 5 stars
53
$52.68 Chewy Price
($0.59/ea) Price per Unit
Autoship Price

Free 1-3 day delivery on first-time orders
Free 365-day returns

Totoniks Fussy Eater & Hydration Starter Pack Immune Support Venison Flavored Powder Supplement...

$39.95 Chewy Price
($5.71/ea) Price per Unit
Autoship Price

Free 1-3 day delivery on first-time orders
Free 365-day returns

Eight Paws Natural Stress Relief Calming Supplement for Dogs & Cats, 90 count

$41.79 Chewy Price
($0.47/ea) Price per Unit
Autoship Price

Free 1-3 day delivery on first-time orders
Free 365-day returns

Loading options...

Loading options...

The Petz Kitchen Holistic Super Food Broth Immune Support Beef Flavor Concentrate Powder Beef F...

Rated 4.7 out of 5 stars
3
$24.95 Chewy Price
($5.55/oz) Price per Unit
Autoship Price

Free 1-3 day delivery on first-time orders over $35
Free 365-day returns

Natura Petz Organics Get Well Soon Dog Supplement, 90 count

Rated 3.8 out of 5 stars
16
$29.99 Chewy Price
($0.34/ea) Price per Unit
Autoship Price

Free 1-3 day delivery on first-time orders over $35
Free 365-day returns

Canine Matrix Turkey Tail Immune Support Mushroom Powder Supplement for Dogs & Cats, 7.1-oz

Rated 4.3 out of 5 stars
182
$38.49 Chewy Price
($5.43/oz) Price per Unit
$42.99 List Price
Autoship Price

Free 1-3 day delivery on first-time orders
Free 365-day returns

MeadowCare Soft Chew Joint, Digestive, Immune, Skin & Coat Support Supplement for Dogs, 60 coun...

Rated 4.6 out of 5 stars
20
$24.99 Chewy Price
($0.42/ea) Price per Unit
Autoship Price

Free 1-3 day delivery on first-time orders over $35
Free 365-day returns

Bundle and Save 5%
Bundle: Bundle: Scratch and Peck Feeds Organic Chicken & Duck Feed 17% Grower Mash, 25-lb bag +...
Rated 5 out of 5 stars
2
$73.13 Chewy Price
$76.98 List Price
Autoship Price

Free 1-3 day delivery on first-time orders
Free 365-day returns

New

ZMA Pets Reishi Mushroom Flavored Powder Comprehensive & Immune Support Supplement for Dogs & C...

$24.99 Chewy Price
($7.89/oz) Price per Unit
Autoship Price

Free 1-3 day delivery on first-time orders over $35
Free 365-day returns

New

The Doctor's Dog PhytoDefense Natural Antimicrobial Immune Support Flavored Liquid Supplement f...

$34.99 Chewy Price
($17.50/fl oz) Price per Unit
Autoship Price

Free 1-3 day delivery on first-time orders over $35
Free 365-day returns

New

The Doctor's Dog RespiraBlend Natural Respiratory Immune Support Flavored Liquid Supplement for...

$34.99 Chewy Price
($17.50/fl oz) Price per Unit
Autoship Price

Free 1-3 day delivery on first-time orders over $35
Free 365-day returns

Strawfield Pets Wild Alaskan Salmon Chews Grain-Free Dog Supplement, 120 count

Rated 3.7 out of 5 stars
18
$35.97 Chewy Price
($0.30/ea) Price per Unit
$60.09 List Price
Autoship Price

Free 1-3 day delivery on first-time orders
Free 365-day returns

RestoraPet Allergy, Itch & Immune Support Soft Chews Dog Supplement, 60 count

Rated 4 out of 5 stars
27
$29.95 Chewy Price
($0.50/ea) Price per Unit
$39.95 List Price
Autoship Price

Free 1-3 day delivery on first-time orders over $35
Free 365-day returns

Bundle: Pet Honesty Allergy Support Immunity Strength & Digestive Health + GrassGreen Snacks Cr...
Rated 1 out of 5 stars
1
$65.98 Chewy Price
Autoship Price

Free 1-3 day delivery on first-time orders
Free 365-day returns

Bundle: Pet Honesty Digestive Probiotic Snacks Health Soft Chews Dog Supplement, 90 count + Pet...
Rated 4 out of 5 stars
4
$65.98 Chewy Price
Autoship Price

Free 1-3 day delivery on first-time orders
Free 365-day returns

ProtectaCell Cellular & Cardiac Support Chewable Tablet Supplement for Dogs & Cats, 90 count

$50.14 Chewy Price
($0.56/ea) Price per Unit
Autoship Price

Free 1-3 day delivery on first-time orders
Free 365-day returns

Arkus Daily Small/Medium Probiotic Digestive Dog Health Supplement, 0.8-oz jar

Rated 4.2 out of 5 stars
13
$39.99 Chewy Price
($49.99/oz) Price per Unit
Autoship Price

Free 1-3 day delivery on first-time orders
Free 365-day returns

Natura Petz Organics Lumps & Bumps Turkey Flavored Powder Skin & Coat Supplement for Dogs, 4-oz...

Rated 3.7 out of 5 stars
41
$29.99 Chewy Price
($7.50/oz) Price per Unit
Autoship Price

Free 1-3 day delivery on first-time orders over $35
Free 365-day returns

Category

Save 5% on repeat deliveries

Health Feature

Brand

7 Brands are shown below

Product Form

Lifestage

Breed Size

Active Ingredient

Flavor

NASC Certified

Price

Customer Rating