Immune Support Stack
- Regular price
- $79.00
- Sale price
- $72.00
Powerful Daily Defense for Your Immune System
Strengthen your body’s natural defenses with Thorne’s Immune Support Stack, a powerhouse trio designed for comprehensive immune support.
- Vitamin C with Flavonoids for potent antioxidant protection
- Vitamin D Liquid for foundational health
- Zinc Picolinate to optimize immune response
Together, these science-backed products work synergistically to keep your immune system strong, resilient, and ready every day.
What's in the Immune Support Stack
Your Defense System Needs Its Foundation
Your immune stack boosts defenses, but without the core nutrients that power immune cells, you’re only getting half the protection. AI1 lays the groundwork so your stack can actually perform, and it’s included free with the Immune Support Stack (a $99 value).
Unlock the Full Power of Your Immune Stack & AI1
Complete Biotic blends a clinically backed prebiotic, probiotic, and postbiotic to promote complete gut comfort and immune health. With a refreshing orange flavor and convenient daily stick packs, this all-in-one formula helps support a balanced microbiome, smooth digestion, and healthy stool consistency.*
Why You’ll Love It:
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Supports regular bowel movements and stool consistency*
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Promotes gut comfort and relieves occasional gas and bloating*
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Encourages growth of beneficial bacteria over harmful strains*
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Benefits gut immune function and gut-derived emotional wellness*
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Supports a balanced inflammatory response in the GI tract*
Why You Can Trust Thorne
When it comes to your health, trust isn’t optional — it’s everything. Thorne has built its reputation on setting the gold standard for supplements:
Other Immune Boosting Support
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Frequently Asked Questions
Each nutrient was carefully chosen for its unique role in supporting immunity. Together, Vitamin D, Zinc Picolinate, and Vitamin C with Flavonoids provide a layered approach — regulating immune balance, activating immune cells, and protecting them from stress. Bundled as a stack, you get the right forms, dosages, and synergy in one trusted package.
Take 1 capsule of Zinc Picolinate daily, 2 drops of Vitamin D Liquid 1–3 times daily(add to food or beverages, do not refrigerate), and 1 capsule of Vitamin C with Flavonoids 1–3 times daily.
Yes. These supplements are designed for daily use and are safe when taken as directed. They provide foundational support that keeps your immune system resilient year-round.
Thorne products are made with clean, pure ingredients. However, if you’re taking prescription medications, managing a health condition, or pregnant/nursing, we recommend checking with your healthcare professional before starting.
Immune health isn’t built overnight, but many people report feeling more resilient to seasonal stressors within a few weeks. The real benefit comes from consistency — giving your immune system daily support so it can respond when you need it most.
Thorne is trusted by Mayo Clinic, U.S. National Teams, and thousands of health professionals worldwide. Every product is third-party tested, made in cGMP-certified facilities, and formulated based on scientific research — ensuring purity, potency, and results you can rely on.
- If you have allergies or sensitivities, please check the ingredients before use.
- If you’re pregnant or nursing, talk with your healthcare provider before starting.
- Zinc may reduce copper absorption if taken long term — many people balance this by including copper in their regimen.
- Vitamin C, in higher amounts, may cause mild digestive upset (like loose stools), which usually goes away when the dose is lowered.
- No known adverse interactions have been reported for Vitamin D or Vitamin C.