Immune Support

Supports immune defenses — e.g. vitamin C, zinc, elderberry, echinacea.

7,563 on-market products · include off-market

Immune support supplements are formulated to help maintain the body's natural defenses, especially during seasonal changes or periods of physical stress. This section of the database collects dietary supplement labels whose primary marketed use relates to immune health. Common active ingredients include Vitamin C, Zinc, Vitamin D, Elderberry, and Echinacea, often combined in single products or as part of broader wellness blends. Many labels also list supporting nutrients such as Selenium, Quercetin, and probiotics. Browsing here lets you compare ingredient amounts, percentage Daily Value (%DV), and serving sizes across thousands of products as recorded in the NIH Dietary Supplement Label Database (DSLD). This information is provided for reference and education only and is not medical advice; always read the full product label and consult a qualified healthcare provider before starting any supplement.

Vitamin C Powder label

Vitamin C Powder

Dr. Clark Research Association Dr. Clark Zentrum

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Vitamin C Powder label

Vitamin C Powder

LuckyVitamin

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Vitamin C Powder label

Vitamin C Powder

Higher Nature

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Vitamin C Powder label

Vitamin C Powder

Freeda

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Vitamin C Powder label

Vitamin C Powder

Chief Originals

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Vitamin C Powder label

Vitamin C Powder

BioCare

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Vitamin C Powder label

Vitamin C Powder

Metabolic Maintenance

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Vitamin C Powder label

Vitamin C Powder

Swanson

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Vitamin C Powder label

Vitamin C Powder

Metabolic Maintenance

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Vitamin C Powder label

Vitamin C Powder

Nutrition Rescue

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Vitamin C Powder label

Vitamin C Powder

LuckyVitamin

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Vitamin C Powder label

Vitamin C Powder

CurEase

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Vitamin C Powder label

Vitamin C Powder

Pharmax

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Vitamin C Powder label

Vitamin C Powder

Higher Nature

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Vitamin C Powder label

Vitamin C Powder

Higher Nature

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Vitamin C Powder label

Vitamin C Powder

Metabolic Maintenance

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Vitamin C Powder 1000 mg label

Vitamin C Powder 1000 mg

SNS Serious Nutrition Solutions

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Vitamin C Powder 100% Pure Ascorbic Acid label

Vitamin C Powder 100% Pure Ascorbic Acid

Dr. Clark Store

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Vitamin C Powder 5000 mg label

Vitamin C Powder 5000 mg

Solaray

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Vitamin C Powder 5000 mg label

Vitamin C Powder 5000 mg

Thompson

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Vitamin C Powder 5000 mg label

Vitamin C Powder 5000 mg

Solaray

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Vitamin C Powder (Magnesium Ascorbate) label

Vitamin C Powder (Magnesium Ascorbate)

Pharmax

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Vitamin C Powder Reduced Acidity label

Vitamin C Powder Reduced Acidity

Metabolic Maintenance

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Vitamin C Pure label

Vitamin C Pure

Kala Health

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