1 Product identity
Ingredient risk
1 ingredient to use with caution

Ester-C 500 mg

BrandAmerican Health→Single Vitamin and Mineral Tablet or Pill 6 ingredients 1 caution DSLD #248839
Net contents: 225 Vegetarian Tablet(s)
Target: Adults and Children 4 years and above
DSLD entry: 2021-11-19
2 Ingredients (6)
IngredientGroupSafety
Vitamin CVitamin C (Calcium Ascorbate)—
CalciumCalciumConditionally Safe
Vegetable CelluloseCellulose—
Calcium SilicateCalcium Silicate—
Vegetable Magnesium StearateMagnesium stearateUse with Caution
natural Palm leaf glazeCoating—
Ingredient amounts require the full DSLD label. View full label at NIH DSLD →
⚠️ Use with caution — restricted in some markets
Magnesium — Severe deficiency (<0.50 mmol/L) causes secondary hypocalcemia and hypokalemia that will not correct until magnesium is repleted first [1].
3 Safety cross-reference
Vitamin C — Limited Evidence
⚠ GI distress at high doses
⚠ Kidney stones risk >1g/day
Calcium — Conditionally Safe
⚠ Cardiovascular risk debated >1,000 mg/day
⚠ Kidney stones
Magnesium — Use with Caution
⚠ Diarrhea (especially oxide)
⚠ Accumulates in renal impairment
GLA — Limited Evidence
⚠ May lower seizure threshold
⚠ Borage oil: hepatotoxic unless PA-free
4 Label claims
• Nutrient
• All Other
• Structure/Function
5 Data source
DSLD ID248839
Full labelView at NIH DSLD →
SourceOffice of Dietary Supplements, NIH
Market statusOn market
Entry date2021-11-19
6 More from American Health
View American Health Safety Scorecard → 33 products
Apple Cider VinegarChewable Acerola Plus Natural Vitamin C 100 mgChewable Acerola Plus Natural Vitamin C 300 mg Natural Berry FlavorChewable Acidophilus And Bifidum Natural Assorted Fruit FlavorsChewable Original Papaya EnzymeChewable Original Papaya Enzyme
7 Cite this page
Vancouver
Pkhakadze G. Ester-C 500 mg — product analysis [Internet]. Tbilisi: Public Health Institute of Georgia; 2026 [cited 2026 Jun 25]. Available from: https://supplement.ge/products/ester-c-500-mg-248839/
CC BY 4.0. Product data from NIH DSLD; safety analysis by SupplementIndex.
GP
Analyzed by SupplementIndex
PHIG · Editor-in-Chief: Prof. Giorgi Pkhakadze, MD, MPH, PhD
Product data sourced from the NIH Dietary Supplement Label Database (DSLD). Safety cross-referencing by SupplementIndex. This analysis is for informational purposes only. For corrections: info@accreditation.ge.
Publisher: PHIG