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Ester-C 1000 mg With Citrus Bioflavonoids

product on market Tablet or Pill American Health Safety: 100/100
100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • 33% of ingredients have research evidence
A Label Compliance Grade

What the Evidence Says

AI-generated · Qwen 3.6 · methodology

Vitamin C and citrus bioflavonoids are supported by moderate evidence for supporting immune function and antioxidant activity. Calcium is strongly evidenced as a critical mineral for bone health and neuromuscular function. These ingredients are generally recognized as safe for consumption.

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

Label

Product Label

Label for Ester-C 1000 mg With Citrus Bioflavonoids
Open Full PDF View on NIH DSLD →
Details

Label Data

1 Vegetarian Tablet(s)
Serving Size
Other Combinations
Product Type
33%
Evidence Coverage
Ingredients

Supplement Facts — Evidence Check

Vitamin C
1000 mg (1667% DV)
Calcium
110 mg (11% DV)
Market median: 500.0mg (283 products) 174 studies (A:0, B:62)

Other Ingredients

Vegetable Cellulose Calcium Silicate Vegetable Magnesium Stearate Stearic Acid
Claims

Label Claims — Verification

Unverified All Other
Unverified Structure/Function
Info

Product Information

Directions for Use

Directions: For adults, take one (1) vegetarian tablet daily, preferably with a meal.

Warnings & Precautions

WARNING: If you are pregnant, nursing, taking any medications or have any medical condition, consult your doctor before use.

Discontinue use and consult your doctor if any adverse reactions occur.

Keep out of reach of children.

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

Formulation Notes

No Gluten, No Yeast, No Wheat, No Milk or Milk Derivatives, No Lactose, No Soy, No Egg, No Grapefruit, No Sugar, No Preservatives, No Artificial Color, No Artificial Flavor, No Sodium. Non-GMO

Suitable for Vegans

100% Vegetarian

Additional Information

Prod No. 16983 B16980 06F

Metabolites help enhance the absorption of Vitamin C by your white blood cells, an important part of your immune system.*

Store at room temperature.

ACTUAL SIZE

Non-Acidic

~Gentle and Non-Acidic ~Patented Vitamin C Formula

24-HOUR(TM) IMMUNE SUPPORT*

Metadata

Product Details

UPC / SKU0 76630 16983 7
DSLD Entry Date2013-01-25
Product TypeOther Combinations
FormTablet or Pill
DSLD ID16931
Data Updated2026-04-11
Research

Research Evidence

184
Research Sources
55
Avg Quality
91
Systematic Review
75
Meta Analysis
7
Rct
7
Clinical Trial
2
Cochrane Review
1
Openfda Safety
B Treatment of gouty arthritis with traditional Chinese medicine decoction: Meta-analysis, network pharmacology analysis, and molecular docking
Meta Analysis Medicine 2024 PubMed DOI
B Effects of quercetin supplementation on lipid profile: A systematic review and meta-analysis of randomized controlled trials
Meta Analysis Critical reviews in food science and nutrition 2017 PubMed
B Dietary polyphenols and the risk of metabolic syndrome: a systematic review and meta-analysis
Meta Analysis BMC endocrine disorders 2024 PubMed DOI
B Quercetin and endurance exercise capacity: a systematic review and meta-analysis
Meta Analysis Medicine and science in sports and exercise 2011 PubMed DOI
B Dietary flavonoid intake and smoking-related cancer risk: a meta-analysis
Meta Analysis PloS one 2013 PubMed DOI
B Clinical efficacy evaluation and potential mechanism prediction on Guizhi-Shaoyao-Zhimu decoction in the treatment of gouty arthritis based on meta-analysis, network pharmacology analysis, and molecular docking
Meta Analysis Medicine 2023 PubMed DOI
B A Systematic Review: Quercetin-Secondary Metabolite of the Flavonol Class, with Multiple Health Benefits and Low Bioavailability
Systematic Review International journal of molecular sciences 2024 PubMed DOI
B Dietary flavonoid for preventing colorectal neoplasms.
Cochrane Review The Cochrane database of systematic reviews PubMed DOI
B Flavonoids for treating venous leg ulcers.
Cochrane Review The Cochrane database of systematic reviews PubMed DOI
B The effects of quercetin supplementation on lipid profiles and inflammatory markers among patients with metabolic syndrome and related disorders: A systematic review and meta-analysis of randomized controlled trials
Meta Analysis Critical reviews in food science and nutrition 2020 PubMed DOI
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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.