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QD-01™ Immunity

QD-01™ Immunity

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Build your body's natural defenses and everyday resilience.

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100%
RESEARCH-BACKED
1,000+
PUBLISHED STUDIES
7
HUMAN TRIALS ON THE STRAINS
40B
CFU's PATENTED DELIVERY
01 · Mechanism

Unbreakable
immune system.

Site
Upper Airway Mucosa
Supports
Antimicrobial peptides, barrier integrity, mucosal IgA
Ingredients
Bifidobacterium lactis Bl-04nasal innate immunity Vitamin D3cathelicidin induction Vitamin Ccollagen synthesis Zincmucosal integrity
Site
Skin
Supports
Physical barrier, collagen matrix, resident immune cells
Ingredients
Vitamin Ccollagen synthesis L-Lysinecollagen cross-linking Vitamin Emembrane antioxidant Citrus Bioflavonoidscapillary integrity
Site
Gut Lymphoid Tissue
Supports
Microbial balance, colonization resistance, gut barrier
Ingredients
Lactobacillus plantarum Lp-115competitive exclusion Lactobacillus acidophilus La-14epithelial adhesion Bifidobacterium lactis Bl-04dendritic cell priming Lactobacillus paracasei Lpc-37gut-brain axis Marine Polysaccharidegastric acid protection Fructooligosaccharideprebiotic substrate
Site
Lymph Nodes
Supports
Antigen presentation, adaptive response, immune memory
Ingredients
ZincT cell activation Vitamin B6lymphocyte proliferation Vitamin Eimmune synapse formation Vitamin D3T cell regulation Lactobacillus acidophilus La-14antibody response
Site
Thymus
Supports
T cell selection, central tolerance, thymic hormones
Ingredients
Zincthymulin activation Vitamin CT cell development
Site
Spleen
Supports
Antigen capture, immune cell reserve, rapid mobilization
Ingredients
Echinaceamacrophage activation Elderberrymonocyte cytokine output Vitamin Eprostaglandin reduction
Site
Bone Marrow
Supports
White blood cell output, stem cell maintenance
Ingredients
Vitamin Cprogenitor differentiation Vitamin B6nucleotide synthesis
02 · Formula

Science-backed formula.

Engineered to prime the body's innate immune network at its source, producing the strongest, most resilient state of defense.

Fructooligosaccharide

Fructooligosaccharide

Prebiotic fiber that feeds the live cultures, raising the short-chain fatty acids that keep the gut's immune response regulated.

Marine Polysaccharide

Marine Polysaccharide

Brown seaweed polysaccharide that shields the live cultures from stomach acid and releases them in the intestine.

Lactobacillus paracasei Lpc-37

Lactobacillus paracasei Lpc-37

Signals through the gut-brain axis and lowers stress, the state in which cortisol suppresses immune function.

Lactobacillus plantarum Lp-115

Lactobacillus plantarum Lp-115

Binds the intestinal mucus layer and holds the surface, the competitive exclusion that keeps the lining occupied.

05 · Compare

The full package.

Building an unbreakable immune system requires more than just a few vitamins. It requires nutrients for every immune cell to run on, botanicals to drive the response, and microbiome trained to regulate it. Our Immunity formula delivers all three, from the gut to the airway.

Feature
ORIGIN
EmergenC
Airborne
Clinically studied strains
✓
—
—
Acid-protected delivery
✓
—
—
Vitamin C absorption limit
✓
—
—
No sugar or artificial sweeteners
✓
—
—
Prebiotic fiber
✓
—
—
Probiotic cultures
40B CFU
0 CFU
0 CFU
Elderberry
500 mg
0 mg
0 mg
Botanical extracts
800 mg
0 mg
35 mg
Vitamin D3
1.6K IU
0 IU
1.5K IU
Vitamin E
15 mg
0 mg
3 mg

Based on publicly listed ingredient panels · Jan 2026

04 · The research

Published Research

FEMS Immunology & Medical Microbiology 2008 La-14 and Bl-04 speed up antibody production Healthy adults who took Bl-04 or La-14 for 3 weeks showed a rise in IgG antibodies by day 21 that the placebo group did not, meaning their immune systems responded faster. Randomized controlled trial Read Clinical Nutrition 2014 Bl-04 lowers respiratory illness risk by 27% Active adults who took Bl-04 daily for 5 months were 27% less likely to get an upper respiratory illness, and those who did got sick about 3 weeks later than the placebo group. Randomized controlled trial Read Neurobiology of Stress 2020 Lpc-37 lowers stress in 5 weeks Healthy adults who took Lpc-37 daily for 5 weeks reported lower stress than placebo, and those with low chronic stress had normalized evening cortisol, the hormone that suppresses immune function when elevated. Randomized controlled trial Read Cochrane Database of Systematic Reviews 2022 Probiotics reduce respiratory infections Across 24 trials, people who took probiotics regularly had fewer acute upper respiratory infections and used antibiotics less often than placebo; most trials used strains other than yours. Meta-analysis Read Nutrition Research 2019 Probiotics strengthen immune cell activity in older adults Across 17 trials of 733 healthy older adults, 3 to 12 weeks of probiotics substantially increased the ability of white blood cells to engulf foreign particles and moderately increased natural killer cell activity. Meta-analysis Read Journal of Food Science 2007 Seaweed polysaccharide coating protects probiotics through stomach acid and bile Eight probiotic strains, including Bl-04, were coated in alginate, a polysaccharide from brown seaweed, and survived acid and bile far better than uncoated cells, with roughly 1,000 times more coated bacteria surviving bile exposure. Laboratory study Read Nutrients 2015 Vitamin C improves neutrophil function by 20% Healthy men who raised their vitamin C intake for 4 weeks had neutrophils, the white blood cells that respond first to infection, that migrated 20% better and produced more of the oxidants they use to kill microbes. Human intervention study Read Cochrane Database of Systematic Reviews 2013 Daily vitamin C shortens colds by 8% People who took at least 200 mg of vitamin C every day had colds that were 8% shorter on average, and it did not reduce how many colds they caught, except in people under extreme physical stress, where it cut colds in half. Meta-analysis Read Journal of Immunology 2009 Vitamin D level controls antimicrobial peptide production In 50 people, higher vitamin D levels meant immune cells produced more cathelicidin, a peptide the body uses to kill bacteria and viruses, when activated. Human observational study Read BMJ 2017 Vitamin D cuts respiratory infections by 12% Across 25 trials and 11,000 people, daily or weekly vitamin D cut acute respiratory infections by 12% overall and by 70% in people who were deficient. Meta-analysis Read JAMA 1997 Vitamin E raises T cell response by 65% Adults who took vitamin E daily for 4 months had a 65% stronger T cell response and produced 6 times more antibodies to a vaccine than placebo. Randomized controlled trial Read BioMed Research International 2017 Vitamin B6 is required for immune cells to multiply Deprivation of vitamin B6 had lymphocytes that could not multiply normally and produced less IL-2, the signal that tells T cells to divide, and a 1991 human study found the same in adults and reversed it with B6. Study Read Journal of Clinical Investigation 1988 Zinc restores the hormone that matures T cells When healthy volunteers were made mildly zinc deficient, activity of thymulin, the thymus hormone that matures T cells, shut down within 8 to 12 weeks, and zinc supplementation restored it. Experimental human study Read Molecular Medicine 2008 Zinc deficiency weakens natural killer cells In the same human deficiency model, natural killer cell activity and IL-2 production both dropped with mild zinc deficiency and recovered with zinc supplementation. Review of human studies Read European Cytokine Network 2001 Elderberry raises immune signaling up to 45-fold Elderberry extract added to immune cells from 12 healthy donors increased production of the cytokines that mobilize an immune response by 2 to 45 times, with TNF-alpha rising 45-fold, in a laboratory test. Laboratory study Read Nutrients 2016 Elderberry shortens colds by 2 days Among 312 air travelers, those taking elderberry who caught a cold recovered about 2 days sooner with half the symptom severity. Randomized controlled trial Read Journal of Biological Chemistry 2006 Echinacea binds directly to immune cell receptors Echinacea's alkylamides bound the CB2 receptor on immune cells about 3 times more tightly than the body's own cannabinoid and altered cytokine production, showing echinacea acts on immune cells through a specific receptor. Laboratory study Read Planta Medica 2005 Echinacea targets the CB2 immune receptor Compounds from echinacea root bound the CB2 receptor found on immune cells and largely ignored the CB1 receptor found in the brain, which is why CB2 is considered echinacea's mechanism of action. Laboratory study Read Biological and Pharmaceutical Bulletin 2011 Flavonoids keep vitamin C in the body longer Healthy men excreted significantly less vitamin C in urine over 5 hours when they took it with fruit flavonoids than as plain ascorbic acid at the same dose, meaning more of it was retained; the fruit was acerola rather than citrus, but the flavonoid mechanism is the same. Human crossover study Read American Journal of Clinical Nutrition 2010 Lysine cuts sick days in half Among 271 people in Ghana taking lysine daily, men had fewer respiratory illness episodes and about half the sick days, children had fewer diarrhea episodes, and an inflammation marker fell in women. Randomized controlled trial Read
05 · Answers

Frequently asked.

Still curious? Reach out to us!

Contact

Immune support is not an acute effect you feel like caffeine. Treat it as a daily input over weeks, the same way you approach sleep or training load.

It supplies concentrated extracts from six functional mushrooms, all rich in beta-glucans, polysaccharides your innate immune cells are built to recognize. It supports normal immune function and everyday resilience. It is not a medicine and does not treat or prevent illness.

Shake well and take 1 mL, one full dropper, once daily. Straight or mixed into water, coffee, or a smoothie. Consistency matters more than timing.