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Protocol Bundle · 1 formulas
Immune Defense Protocol
The four-formula immune stack: Beta Glucan Immune Optimizer, Vitamin C+, Advanced Immune Defense, and Germ Fighter Essential Oil — built to support every layer of immune readiness, year-round.
Curated by
Dr. Daniel Schrock, DC — 40 years of clinical practice
1 Products
Save $45.97
A note from Dr. Schrock
"What do I take to stop getting sick three times every winter?"
Patients always asked me this in October — and the honest answer is that you don't fix it with one bottle of vitamin C in November. The immune system has multiple layers, and a real protocol supports all of them at once: the trained innate side (beta glucan), the antioxidant and inflammation buffer (vitamin C and zinc), the herbal modulators (elderberry, echinacea, mushroom blends), and the topical/airborne defense (germ-fighter essential oils).
This protocol stacks all four. Beta Glucan trains the macrophages and natural killer cells, Vitamin C+ replenishes adrenal and tissue stores, Advanced Immune Defense layers in elderberry and adaptogenic mushrooms, and Germ Fighter essential oil keeps surfaces and airways supported. Start it in early fall and stay on it through flu season — that's how I helped patients stop the three-times-a-winter cycle.
What's inside
This protocol supports healthy immune function. It is not intended to diagnose, treat, cure, or prevent any disease, including COVID-19, flu, or the common cold. Always consult your healthcare provider before beginning any supplement regimen.
The flagship of this protocol
Immune Defense Protocol — Dr. Schrock's Bundle
Beta Glucan + Advanced Immune Defense + High-Potency Vitamin C + Germ Fighter EO blend. The four-product stack I run on myself every fall and recommend to patients before flu season, travel, or any predictable high-demand...
- Proactive optimization, not reactive treatment
- Cellular activation (Beta Glucan) + acute response (Immune Defense) + baseline (Vit C) + airborne (Germ Fighter)
- Save $45.97 vs buying the four formulas separately
- Start 30 to 60 days before predictable high-demand periods
How the protocol works
The four layers of a resilient immune system.
A real immune defense isn't one nutrient — it's four coordinated layers. The protocol covers all of them at once.
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Innate readiness
Beta glucan trains macrophages and natural killer cells so they respond faster to any challenge.
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Antioxidant reserve
Vitamin C, Zinc and Quercetin replenish the cellular antioxidant pool the immune system burns through under stress.
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Herbal modulation
Elderberry, Echinacea and adaptogenic mushrooms (Reishi, Astragalus) help balance the inflammatory side of immune response.
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Topical & airborne defense
Germ Fighter oils (Clove, Cinnamon, Eucalyptus, Lemon, Rosemary) support surfaces, airways and shared spaces.
Save with the protocol.
Immune Defense Protocol — 4 formulas, save 15%.
Beta Glucan Immune Optimizer, Vitamin C+, Advanced Immune Defense, and Germ Fighter Essential Oil. The complete four-layer stack at a protocol price.
Bundle price
$64.95
$76.41separate
Dr. Daniel Schrock
Doctor of Chiropractic | Licensed since 1990
Why this protocol exists
"You don't build an immune system in November. You build it in September and keep building it."
The patients who stopped getting hit hard every winter were the ones who started in early fall and stayed consistent. Beta glucan in particular needs 30 to 60 days to train the innate side — it's not a 24-hour solution. Use the full stack daily through cold and flu season, double up on Vitamin C+ when travel or stress spikes, and keep Germ Fighter in your kit for the in-between.
Real patients, real results
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Shop by ingredient
The lead ingredients in the Immune Defense stack
Common questions
Immune Defense Protocol — common questions.
Will the four formulas interact with each other?
No — they layer cleanly. Beta Glucan works on innate immune training, Vitamin C+ replenishes antioxidant reserves, Advanced Immune Defense modulates herbal and adaptogenic pathways, and Germ Fighter is topical/airborne. Each hits a different layer.
Who should not take this protocol?
Check with your physician first if you have an autoimmune condition (some immune-modulating herbs can be activating), are on immunosuppressants after a transplant, or are pregnant or nursing. Most other patients tolerate the full stack well.
How do I take all four of these?
Beta Glucan: 1 capsule on an empty stomach in the morning (this is important — food blunts absorption). Vitamin C+: 1–2 capsules with breakfast or lunch. Advanced Immune Defense: 1–2 capsules with dinner. Germ Fighter Essential Oil: diffuse during cold and flu season, or dilute and apply to the chest/back of neck. Full protocol on the included card.
How long until I feel a difference?
Vitamin C and Zinc effects are felt quickly (energy, less sluggishness within a week or two). Beta Glucan's immune-training effect typically shows in 30–60 days — patients describe it as "I just don't go down when everyone around me is sick." Plan to be on the stack for at least one full cold-and-flu season to evaluate.
What if one of the formulas bothers me?
The most common adjustment is Vitamin C (loose stools at higher doses — split the dose across the day) and Germ Fighter (skin irritation if applied undiluted — always carrier-dilute). Pause the offending product, continue the others, and reach out to our team — we'll help you titrate.
Get the FreeImmune-Building Calendar.
Dr. Schrock's month-by-month immune-building calendar — when to start each formula, when to double up, and how to ride out cold and flu season without going down.
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Free shipping
On every US order over $75
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60-day refund
No bottle return needed
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Doctor-formulated
40 years of practice
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Made in USA
GMP-certified facility
