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Ester-C 1000

product on market Tablet or Pill NOW Safety: 100/100
100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • 17% of ingredients have research evidence
B Label Compliance Grade

What the Evidence Says

AI-generated · Qwen 3.6 · methodology

Vitamin C and calcium are supported by strong evidence for immune function and bone health, respectively. Citrus bioflavonoids, acerola, and rose hips provide additional antioxidant properties, though clinical evidence for these specific botanical powders is more limited. The profile maintains a high safety rating for general consumption.

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

Label

Product Label

Label for Ester-C 1000
Open Full PDF View on NIH DSLD →
Details

Label Data

1 Tablet(s)
Serving Size
Other Combinations
Product Type
17%
Evidence Coverage
Ingredients

Supplement Facts — Evidence Check

Vitamin C
1 g (1670% DV)
Calcium
115 mg (10% DV)
Market median: 500.0mg (283 products) 174 studies (A:0, B:62)
Acerola powder
25 mg
Rose Hips powder
25 mg
25 mg
Market median: 500.0mg (19 products)

Other Ingredients

Cellulose Magnesium Stearate Silica
Claims

Label Claims — Verification

Unverified Nutrient
Unverified All Other
Unverified Structure/Function
Info

Product Information

Directions for Use

SUGGESTED USAGE: As a dietary supplement, take one tablet daily, preferably with meals.

Formulation Notes

Ester-C(R) is a unique form of buffered Vitamin C with metabolites. Metabolites are compounds derived from nutrients that are normally created in the body. Research has demonstrated that this combination of non-acidic Vitamin C with metabolites is well absorbed and retained in blood cells and tissues.* We have further enhanced this superior product with the synergistic blend of Bioflavonoids, Acerola, Rose Hips and Rutin.

Vegetarian Formula

1000 mg of Vitamin C Plus 200 mg of Bioflavonoids

Contains no sugar, starch, yeast, wheat, gluten, corn, soy, milk, egg or preservatives.

Additional Information

Natural color variations may occur in this product. CAUTION: PLEASE DISCARD THE INEDIBLE FRESHNESS PACKET ENCLOSED.

Good Manufacturing Practices GMP NNfA

This seal certifies that the manufacturer of this product uses quality systems and procedures that comply with NNFA's Dietary Supplement GMP standards. The quality of individual ingredients, however, has not been certified.

ACTUAL SIZE

Made in the U.S.A.

CODE 0732 V1

Metadata

Product Details

UPC / SKU7 33739 00732 2
DSLD Entry Date2012-08-24
Product TypeOther Combinations
FormTablet or Pill
BrandNOW
DSLD ID12844
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
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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.