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Immune System Defense

product on market Liquid Vitabase Safety: 100/100
100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • 44% of ingredients have research evidence
A Label Compliance Grade

What the Evidence Says

✨ AI-generated · Qwen 3.6 · methodology

Vitamin C, zinc, and copper provide moderate evidence for supporting immune function and cellular health. Astragalus and maitake mushrooms are included for their potential immune-modulating effects, though research evidence for these botanicals is more limited. The ingredient profile maintains a high safety score.

AI-generated summary based on research evidence. Not medical advice.

Label

Product Label

Label for Immune System Defense
Open Full PDF View on NIH DSLD →
Details

Label Data

1 fl. Oz.
Serving Size
32
Servings
Other Combinations
Product Type
44%
Evidence Coverage
Ingredients

Supplement Facts — Evidence Check

Vitamin C
500 mg (834% DV)
20 mg (133% DV)
1.8× RDA — within safe limits 263 studies (A:6, B:134)
0.5 mg (25% DV)
Within RDA (0.6× RDA) 37 studies (A:0, B:11)
750 mg
Market median: 470.0mg (230 products) 9 studies (A:3, B:3)
Maitake
500 mg
Market median: 175.0mg (497 products) 11 studies (A:0, B:1)
400 mg
Market median: 450.0mg (130 products) 1 studies — no high-quality reviews
Suma
500 mg
Grapefruit
100 mg

Other Ingredients

purified Water 100% Whole Leaf Aloe Vera Juice Concentrate Natural flavoring Vegetable Gum Citric Acid Stevia Potassium Benzoate Potassium Sorbate
Claims

Label Claims — Verification

Unverified All Other
Unverified Structure/Function
Info

Product Information

Directions for Use

DIRECTIONS: Shake well. Lid holds 1 Fl. Oz. Serving.

Dosage Guidelines: 1-2 oz. daily. May be taken with food.

Formulation Notes

100% VEGETARIAN

Contains NO Artificial Coloring or Flavoring, Sugar, Starch, Salt, Wheat, Gluten, Yeast, or Milk Derivatives.

Additional Information

REFRIGERATE AFTER OPENING

SOME SETTLING IS NORMAL

MADE IN THE USA

Superior Absorption Supports Immune System All Natural Herbs

Vb

Metadata

Product Details

UPC / SKU7 65462 02236 5
DSLD Entry Date2012-04-26
Product TypeOther Combinations
FormLiquid
BrandVitabase
DSLD ID7849
Data Updated2026-04-11
Research

Research Evidence

371
Research Sources
54
Avg Quality
148
Meta Analysis
82
Systematic Review
71
Rct
62
Clinical Trial
2
Regulatory Source
1
Cochrane Review
1
Narrative Review
1
Other
1
Openfda Safety
A Vitamin C supplementation in pregnancy
Meta Analysis The Cochrane database of systematic reviews 2015 PubMed DOI
A Vitamin C supplementation for the primary prevention of cardiovascular disease
Systematic Review The Cochrane database of systematic reviews 2017 PubMed DOI
A Vitamin C for preventing and treating the common cold
Meta Analysis The Cochrane database of systematic reviews 2013 PubMed DOI
A Vitamin C for preventing and treating pneumonia
Meta Analysis The Cochrane database of systematic reviews 2013 PubMed DOI
A Vitamin E supplementation in pregnancy
Meta Analysis The Cochrane database of systematic reviews 2015 PubMed DOI
A Vitamin C supplementation for prevention and treatment of pneumonia
Meta Analysis The Cochrane database of systematic reviews 2020 PubMed DOI
A Vitamin C supplementation for prevention and treatment of pneumonia
Systematic Review The Cochrane database of systematic reviews 2021 PubMed DOI
A Nutritional interventions for preventing and treating pressure ulcers
Meta Analysis The Cochrane database of systematic reviews 2024 PubMed DOI
A Does Vitamin C Supplementation Provide a Protective Effect in Periodontal Health? A Systematic Review and Meta-Analysis
Meta Analysis International journal of molecular sciences 2024 PubMed DOI
A Circulating vitamin C concentration and risk of cancers: a Mendelian randomization study
Meta Analysis BMC medicine 2021 PubMed DOI
View all evidence for Vitamin C →
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This product page is for informational purposes only and does not constitute medical advice. Always consult your healthcare provider before taking any supplement.