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.

Essential Zinc 50 mg label

Essential Zinc 50 mg

Sundown

MineralsOther (e.g. tea bag)On Market
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Ester C + label

Ester C +

DC

Botanicals with NutrientsCapsuleOn Market
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Ester C + label

Ester C +

DC

Botanicals with NutrientsCapsuleOn Market
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Ester-C label

Ester-C

Kala Health

Other CombinationsTablet or PillOn Market
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Ester-C label

Ester-C

Puritan's Pride

Botanicals with NutrientsSoftgel CapsuleOn Market
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Ester-C 1000 label

Ester-C 1000

NOW

Other CombinationsTablet or PillOn Market
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Ester-C 1000 mg label

Ester-C 1000 mg

Vitabase

Other CombinationsTablet or PillOn Market
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Ester-C 1000 mg plus D3 125 mcg (5000 IU) label

Ester-C 1000 mg plus D3 125 mcg (5000 IU)

Puritan's Pride

Other CombinationsTablet or PillOn Market
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Ester-C 1000 mg with Citrus Bioflavonoids label

Ester-C 1000 mg with Citrus Bioflavonoids

American Health

Other CombinationsCapsuleOn Market
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Ester-C 1000 mg with Citrus Bioflavonoids label

Ester-C 1000 mg with Citrus Bioflavonoids

American Health

Other CombinationsTablet or PillOn Market
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Ester-C 1000 mg With Citrus Bioflavonoids label

Ester-C 1000 mg With Citrus Bioflavonoids

American Health

Other CombinationsTablet or PillOn Market
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Ester-C 1000 mg With Citrus Bioflavonoids label

Ester-C 1000 mg With Citrus Bioflavonoids

American Health

Other CombinationsTablet or PillOn Market
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Ester-C 1000 mg With Citrus Bioflavonoids label

Ester-C 1000 mg With Citrus Bioflavonoids

American Health

Other CombinationsTablet or PillOn Market
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Ester-C 1000 mg With Citrus Bioflavonoids label

Ester-C 1000 mg With Citrus Bioflavonoids

American Health

Botanicals with NutrientsTablet or PillOn Market
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Ester C 1250 mg label

Ester C 1250 mg

DC

Other CombinationsTablet or PillOn Market
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Ester C 1250 mg label

Ester C 1250 mg

DC

Other CombinationsTablet or PillOn Market
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Ester-C 1250 mg label

Ester-C 1250 mg

Wonder Laboratories

Other CombinationsTablet or PillOn Market
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Ester-C 24 Hour Immune Support label

Ester-C 24 Hour Immune Support

NatureSmart

Other CombinationsTablet or PillOn Market
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Ester-C 24 Hour Immune Support 1000 mg label

Ester-C 24 Hour Immune Support 1000 mg

NatureSmart

Other CombinationsTablet or PillOn Market
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Ester-C 24 Hour Immune Support 500 mg label

Ester-C 24 Hour Immune Support 500 mg

NatureSmart

Other CombinationsTablet or PillOn Market
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Ester-C 250 mg Orange Flavored Wafers label

Ester-C 250 mg Orange Flavored Wafers

American Health

Single Vitamin & MineralOther (e.g. tea bag)On Market
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Ester-C 500 mg label

Ester-C 500 mg

American Health

Single Vitamin & MineralCapsuleOn Market
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Ester-C 500 mg label

Ester-C 500 mg

American Health

Single Vitamin & MineralTablet or PillOn Market
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Ester-C 500 mg label

Ester-C 500 mg

American Health

Single Vitamin & MineralCapsuleOn Market
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