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Immune 24 Hour +

product on market Softgel Capsule Nature's Bounty Safety: 98/100
98/100

This product looks safe

  • Folate: 666mg is 666.0× the Tolerable Upper Intake Level (1.0mg)
  • 62% of ingredients have research evidence
C Label Compliance Grade

What the Evidence Says

✨ AI-generated · Qwen 3.6 · methodology

This product contains Vitamin A and Ester-C, both of which have strong evidence supporting their roles in immune system function. These nutrients assist in maintaining mucosal barriers and supporting white blood cell activity. The overall evidence coverage for this specific ingredient profile is limited.

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

Alerts

Safety Alerts

Folate: 666mg is 666.0× the Tolerable Upper Intake Level (1.0mg)

Label

Product Label

Label for Immune 24 Hour +
Open Full PDF View on NIH DSLD →
Details

Label Data

2 Softgel(s)
Serving Size
25
Servings
Botanical with Nutrients
Product Type
62%
Evidence Coverage
Ingredients

Supplement Facts — Evidence Check

Calories
20 Calorie(s)
Total Fat
1 Gram(s) (1% DV)
Total Carbohydrates
2 Gram(s) (1% DV)
Vitamin A
750 mcg (83% DV)
Ester-C
1000 mg (1111% DV)
15 mcg (75% DV)
Within RDA (1.0× RDA) 608 studies (A:16, B:251)
2 mg (118% DV)
1.5× RDA — within safe limits 114 studies (A:3, B:35)
666 mcg DFE (167% DV)
Exceeds UL by 666.0× (UL: 1.0 mg) 226 studies (A:10, B:105)
6 mcg (250% DV)
2.5× RDA — within safe limits 139 studies (A:1, B:44)
300 mcg (1000% DV)
10.0× RDA — above typical dose 27 studies (A:0, B:11)
10 mg (200% DV)
2.0× RDA — within safe limits 2 studies — no high-quality reviews
25 mg (6% DV)
Within RDA (0.1× RDA) 316 studies (A:8, B:159)
15 mg (136% DV)
1.4× RDA — within safe limits 263 studies (A:6, B:134)
17 mg
Market median: 175.0mg (497 products) 11 studies (A:0, B:1)
16.5 mg
Market median: 400.0mg (380 products) 36 studies (A:1, B:10)
16.5 mg
Market median: 470.0mg (230 products) 9 studies (A:3, B:3)

Other Ingredients

Rice Bran Oil Gelatin Glycerin Carob, Powder natural Caramel color Sunflower Lecithin yellow Beeswax
Claims

Label Claims — Verification

Unverified Nutrient
Unverified All Other
Unverified Structure/Function
Info

Product Information

Directions for Use

Directions: For adults, take two (2) softgels daily, preferably with a meal.

Warnings & Precautions

Warning: if you are pregnant, nursing, taking any medications, have any medical condition, or are planning to undergo any clinical lab testing, consult your doctor before use. Some supplements may interact with certain medications and/or interfere with certain lab tests.

Avoid this product if you are allergic to sunflowers or daisy-like flowers.

Discontinue use if any adverse reactions occur.

Not intended for use by persons under the age of 18. Keep out of reach of children.

Do not use if seal under cap is broken or missing.

Formulation Notes

1000mg Ester-C per serving

The only vitamin C with 24 hour immune support Supports upper respiratory health

Non-GMO No gluten No artificial flavor No artificial sweetener No sugar

1000 mg Ester-C per serving + Vitamin D & Zinc With elderberry, echinacea

Additional Information

Store at room temperature.

Nutrition questions or comments? Call 1-800-433-2990 Mon. - Sat. 9 AM - 7 PM ET Sign up for news and offers at NaturesBounty.com

Metadata

Product Details

UPC / SKU0 74312 00809 2
DSLD Entry Date2023-06-22
Product TypeBotanical with Nutrients
FormSoftgel Capsule
BrandNature's Bounty
DSLD ID296182
Data Updated2026-04-11
Research

Research Evidence

337
Research Sources
54
Avg Quality
161
Meta Analysis
68
Systematic Review
51
Rct
48
Clinical Trial
2
Other
2
Regulatory Source
1
Narrative Review
1
Cochrane Review
1
Guideline
1
Openfda Safety
A Vitamin A supplementation for preventing morbidity and mortality in children from six months to five years of age
Meta Analysis The Cochrane database of systematic reviews 2017 PubMed DOI
A Vitamin A supplementation for the prevention of morbidity and mortality in infants six months of age or less
Meta Analysis The Cochrane database of systematic reviews 2011 PubMed DOI
A Vitamin A supplementation for reducing the risk of mother-to-child transmission of HIV infection
Meta Analysis The Cochrane database of systematic reviews 2011 PubMed DOI
A Vitamin A supplements for preventing mortality, illness, and blindness in children aged under 5: systematic review and meta-analysis
Meta Analysis BMJ (Clinical research ed.) 2011 PubMed DOI
A Fortification of staple foods with vitamin A for vitamin A deficiency
Systematic Review The Cochrane database of systematic reviews 2019 PubMed DOI
A Vitamin A supplementation for the prevention of morbidity and mortality in infants one to six months of age
Narrative Review The Cochrane database of systematic reviews 2016 PubMed DOI
A Vitamin A and fish oils for preventing the progression of retinitis pigmentosa
Meta Analysis The Cochrane database of systematic reviews 2020 PubMed DOI
A Exercise training-induced changes in exerkine concentrations may be relevant to the metabolic control of type 2 diabetes mellitus patients: A systematic review and meta-analysis of randomized controlled trials
Meta Analysis Journal of sport and health science 2023 PubMed DOI
A Food fortification with multiple micronutrients: impact on health outcomes in general population
Meta Analysis The Cochrane database of systematic reviews 2019 PubMed DOI
A Oral vitamin A supplements to prevent acute upper respiratory tract infections in children up to seven years of age
Meta Analysis The Cochrane database of systematic reviews 2024 PubMed DOI
View all evidence for Vitamin A →
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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.