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Immune Defense of Primal Harvest has effective ingredients to keep me healthy & safe. This new product of them is now on my top favorite. I really feel that its working on my gut health. Plus I love the fact that it has Zinc + Probiotics to boost my immune function. What a perfect find!

Isabelle H. - Verified Buyer

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Primal Harvest allows for the return or replacement of any product within 90-days from the date of purchase. For more details please see our return policy


William S.

Yes, I am seeing the results I wanted to see and feel. I will reorder over and over again. Immune defense is one of my favorite from their list! 😍



J. Pierce

I trust the Primal harvest products because I can feel the difference if I don't have them. I have tried other brands and they don't make the mark like the Primal ones do! I am not sick so I believe it is working. I do have allergies but mild symptoms. Grateful for this product so I can stay healthy. Thank you!



Isabelle J H.

Immune Defense of Primal Harvest has effective ingredients to keep me healthy & safe. This new product of theirs is now on my top favorite. I really feel that its working on my gut health. Plus I love the fact that it has Zinc + Probiotics to boost my immune function. What a perfect find!



A. Velasquez

Delivery was quick as usual. I've only been taking it for a few days, but I'm sure it will work just like everything else I take from Primal Harvest. I believe that this Immune defense that they just launched is very effective and very timely. Thank you so much Primal harvest for keeping me and my family healthy through your top quality products!

Frequently Asked Questions 

Q: What is Primal Immune Defense?

Primal Immune Defense is a doctor-formulated immune booster that takes a 360° approach to protecting your health. Primal Immune Defense contains prebiotics, probiotics, vitamins, and zinc to supercharge your immune system and keep you protected against whatever life throws your way.

Q: What are probiotic strains?

Probiotic strains are the different types of probiotics that have been isolated and defined by scientists. Strains have different effects on the body; some are great for digestion, while others are perfect for boosting your immune system or decreasing your cholesterol.

You already have well over 500 different probiotic strains in your body at this very moment!

Q: Why choose Primal Immune Defense?

Primal Immune Defense gives you everything you need to strengthen and support a healthy immune system. Probiotics work to optimize your microbiome and line your intestinal walls with beneficial gut bacteria. Since good health starts in the gut, Primal Immune Defense helps optimize this critical aspect of your immune system with potent probiotic strains like Lactobacillus acidophilus (La-14). It also provides prebiotics to ensure the longevity of these immune boosting probiotic strains.

Primal Immune Defense is loaded with vitamins C, D3, and B6 to deliver all the crucial vitamins your body needs to support a healthy immune system, and zinc which has been shown to strengthen your natural defenses.

Q: What are the ingredients?

Serving Size: 2 easy-to swallow-capsule

● Lactobacillus acidophilus (La-14)

● Zinc (as Zinc AAC)

● Vitamin C (as Ascorbic Acid)

● Bifidobacterium bifidum Bb-06

● GOS (Galacto-oligosaccharides)

● Vitamin D3 (as Cholecalciferol)

● Vitamin B6 (from Pyridoxine HCL)

Q: What is the best way to use Primal Immune Defense?

We recommend you take the two easy-to-swallow capsules daily with your morning breakfast, brunch, or afternoon lunch.

Q: How long will a bottle of Primal Immune Defense last? 

Each bottle contains 30 servings to get you through an entire month.

Q: Are there any allergy concerns with this product?

This product is manufactured in a facility that also processes tree nuts, peanuts, wheat, and soy. Always review the label for the most accurate information.

Q: Can I take this product if I have a medical condition?

Primal Immune Defense is intended for use by healthy adults over 18 years old. We recommend that you consult with your physician before use if you are taking any prescription or over-the-counter medications or are being treated for any existing medical conditions.

Q: How long will it take for my bottle of Primal Immune Defense to arrive?

Orders received before 4pm EST will ship the same day. Please allow 3-4 business days for your package to arrive. We will provide you with a tracking number once the package leaves our US warehouse.

Q: How do I store this product?

We have built this product to be shelf-stable with a significant overage on total cell enumeration. Probiotic bacteria can be sensitive to certain environments, that’s why we keep them temperature controlled throughout the entire production process, including storage in our warehouse.

Although Primal Immune Defense was specially formulated to maintain maximum efficiency and shelf life when stored in a cool, dry place away from moisture, and outside of direct sunlight, we recommend refrigerating your product after opening to ensure maximum benefits.

Q: What is the shelf life of my Primal Immune Defense? 

Stability studies show that full potency and cell count will be maintained for 18+ months if stored properly and unopened. After 18 months the probiotic is at risk of a decrease in potency and cell count.

Once opened, we recommend finishing an opened bottle within 90 days and storing the opened bottle either in low-moisture conditions or refrigerated.

Q: How many containers should I purchase? 

To take full advantage of our discounts, we recommend buying 6 to 12 bottles of Primal Immune Defense. You are always protected by our 90-day money-back guarantee so you have plenty of time to enjoy the long term benefits of Primal Flex.

Please have a look at “What is the shelf life of my Primal Immune Defense ?” to learn more about the shelf life of Primal Immune Defense.