Ester-C 500 mg with Citrus Bioflavonoids
Goals
$9.58 $0.21 per serving
Product analysis
Ester-C 500 mg with Citrus Bioflavonoids offers favorably priced vitamin C for normal immune function, with a possible modest reduction in cold duration when used regularly.
AI assessment of the formula, label and price. How scoring works
Nutrient Quality37
The calcium-ascorbate source is identified, while the flavonoid preparation is unspecified. How readily the complete formula can be used remains uncertain.
Ingredient Transparency88
All listed amounts are stated, and the vitamin C and calcium sources are identified. The flavonoid form is unspecified, making that part of the formula harder to compare.
Value For Money74
Vitamin C offers favorable value for the serving cost. Value for the calcium and flavonoids remains uncertain.
Customer Satisfaction96
Customers are very positive about their purchases. The substantial number of ratings makes that feedback more representative, without showing whether the supplement works.
Product Focus74
Vitamin C provides the clearest role in normal immune nutrition and may modestly shorten colds with regular use. The buffered or ester description does not establish an additional benefit.
- Format
Tablet - Container
- 90 Tablet(s)
- Per serving
- $0.21
- Also available
Ester-C 500 mg With Citrus Bioflavoinds$9.16- Customer rating
- 4.9 · 17,728 ratings
Goals
Impact
High effect
Vitamin C · 1000 mg
Impact
High effect
Vitamin C · 1000 mg
Impact
High effect
Vitamin C · 1000 mg
Impact
High effect
Vitamin C · 1000 mg
Ingredients
| Ingredient | Amount per serving | Score |
|---|---|---|
Vitamin C (Ester-C Calcium Ascorbate) | 1000 mg | |
Calcium (Ester-C Calcium Ascorbate) | 110 mg | |
Citrus Bioflavonoids Complex | 400 mg |
Vitamin C (Ester-C Calcium Ascorbate) · 1000 mg OverallScore92
It provides 1000 mg of vitamin C per serving. The cost per gram of vitamin C is low, based on the full serving price. It uses Ester-C, a calcium ascorbate form with metabolites. Calcium ascorbate is a buffered mineral form.
How this ingredient is rated
Active Ingredient Quality & Bioavailability90
It uses Ester-C, a calcium ascorbate form with metabolites. Calcium ascorbate is a buffered mineral form.
Vitamin C Chemical Form & Delivery System
It uses Ester-C, a calcium ascorbate form with metabolites.
Gastric Comfort & pH Balance
Calcium ascorbate is a buffered mineral form.
Dose, Safety & Label Transparency91
It provides 1000 mg of vitamin C per serving. The other-ingredient panel has no flagged additives.
Optimal Dosage Targeting
It provides 1000 mg of vitamin C per serving.
Purity & Excipient Quality
The other-ingredient panel has no flagged additives.
Mineral & Source Transparency
The vitamin C and calcium amounts are stated.
Value100
The cost per gram of vitamin C is low, based on the full serving price.
Price per Gram of Vitamin C
The cost per gram of vitamin C is low, based on the full serving price.
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Sources
Published studies used for the product analysis and the top-ranked studies for each ingredient and goal.
- Dietary intake and blood concentrations of antioxidants and the risk of cardiovascular disease, total cancer, and all-cause mortality: a systematic review and dose-response meta-analysis of prospective studies.
- Scientific Opinion on the substantiation of a health claim related to vitamin C and increasing non haem iron absorption pursuant to Article 14 of Regulation (EC) No 1924/2006.
- Vitamin C Depletion and All-Cause Mortality in Renal Transplant Recipients.
- Associations of Serum Biomarkers of Fruit and Vegetable Intake With the Risk of Cause-Specific Mortality and All-Cause Mortality: A National Prospective Cohort Study.
- Relation between plasma ascorbic acid and mortality in men and women in EPIC-Norfolk prospective study: a prospective population study. European Prospective Investigation into Cancer and Nutrition.
- Role of Oral Vitamin 'C' on Astigmatic Errors in Phacoemulsification.
- Ascorbic acid metabolites are involved in intraocular pressure control in the general population.
- Nutritional modulation of cataract.
- Dietary n-3 Fatty Acid, α-Tocopherol, Zinc, vitamin D, vitamin C, and β-carotene are Associated with Age-Related Macular Degeneration in Japan.
- Adherence to a Mediterranean diet, lifestyle and age-related macular degeneration: the Coimbra Eye Study - report 3.
- Vitamin C and contribution to the normal function of the immune system: evaluation of a health claim pursuant to Article 14 of Regulation (EC) No 1924/2006.
- Therapeutic effects of high-dose vitamin C supplementation in patients with COVID-19: a meta-analysis.
- Effect of micronutrient supplements on influenza and other respiratory tract infections among adults: a systematic review and meta-analysis.
- New evidence for antioxidant properties of vitamin C.
- Enhanced Vitamin C Delivery: A Systematic Literature Review Assessing the Efficacy and Safety of Alternative Supplement Forms in Healthy Adults.
- Efficacy of Vitamin C as Glucocorticoid Substitute for Reducing Pain and Inflammation After Total Hip Arthroplasty: A Randomized Controlled Trial.
- The Impact of Vitamin C on Analgesic, Anti-inflammatory, and Hemostatic Outcomes After Total Hip and Knee Arthroplasty: A Systematic Review and Meta-Analysis.
- The impact of vitamin C supplementation on the perioperative outcomes after total hip and knee arthroplasty: a systematic review and meta-analysis.
- Therapeutic Impact of Ascorbic Acid on Oral and Periodontal Tissues: A Systematic Literature Review.
- Oral vitamin C administration reduces early recurrence rates after electrical cardioversion of persistent atrial fibrillation and attenuates associated inflammation.