$15.44 $0.17 per serving
Product analysis
Ester-C Plus 1000 mg Vitamin C supports normal immune function and collagen formation, especially when vitamin C intake is low. Rose hip and rutin add little meaningful support at their small amounts.
AI assessment of the formula, label and price. How scoring works
Nutrient Quality30
The vitamin C source is identified, but its form quality cannot be confirmed. Most added plant preparations are unspecified, limiting comparison with alternatives.
Ingredient Transparency72
The listed amounts are disclosed, and the vitamin C and calcium source is named. Most plant preparations are not identified in detail.
Value For Money61
Vitamin C offers good value for the amount supplied, while rutin is middling value. The other ingredients lack reliable cost comparisons.
Customer Satisfaction93
Customer ratings are generally positive. A large number of ratings gives a broader picture of customer satisfaction.
Product Focus70
Vitamin C provides the clearest contribution to immune function and normal collagen formation. The small added plant ingredients do not establish broader benefits.
- Format
Tablet - Container
- 90 Tablet(s)
- Per serving
- $0.17
- Also available
Ester-C Plus 1000 mg Vitamin C$25.99- Customer rating
- 4.8 · 11,607 ratings
Goals
Impact
Highest effect
Vitamin C · 1000 mg
Impact
Moderate 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 |
|---|---|---|
Calories | 5 Calorie(s) | |
Total Carbohydrates | 1 Gram(s) | |
Vitamin C (Ester-C Calcium Ascorbate) | 1000 mg | |
Calcium (Ester-C Calcium Ascorbate) | 100 mg | |
Citrus Bioflavonoid Complex | 200 mg | |
Acerola extract | 25 mg | |
Rose Hips | 25 mg | |
Rutin | 25 mg |
Vitamin C (Ester-C Calcium Ascorbate) · 1000 mg OverallScore92
Each serving provides 1000 mg of vitamin C at a low cost relative to that amount. It uses Ester-C calcium ascorbate. Calcium ascorbate is a buffered form that may be gentler on the stomach.
How this ingredient is rated
Active Ingredient Quality & Bioavailability90
It uses Ester-C calcium ascorbate. Calcium ascorbate is a buffered form that may be gentler on the stomach.
Vitamin C Chemical Form & Delivery System
It uses Ester-C calcium ascorbate.
Gastric Comfort & pH Balance
Calcium ascorbate is a buffered form that may be gentler on the stomach.
Dose, Safety & Label Transparency91
Each serving provides 1000 mg of vitamin C. The ingredient list includes standard excipients.
Optimal Dosage Targeting
Each serving provides 1000 mg of vitamin C.
Purity & Excipient Quality
The ingredient list includes standard excipients.
Mineral & Source Transparency
The label states 100 mg of calcium with the vitamin C.
Value100
The cost relative to the amount of vitamin C is low.
Price per Gram of Vitamin C
The cost relative to the amount of vitamin C is low.
Rutin · 25 mg OverallScore83
The serving provides 25 mg of rutin, with a moderate estimated whole-product cost for the declared preparation amount. The rutin source is unspecified.
How this ingredient is rated
Composition and Label Disclosure
No additional composition or label details are available for this group.
Composition and Label Disclosure100
The active rutin amount is stated as 25 mg per serving.
Declared Active Rutin Amount
The serving declares 25 mg of active rutin.
Commercial Price and Usability50
The estimated whole-product cost per 100 mg of declared rutin preparation is moderate.
Whole-Product Cost per 100 mg Declared Rutin Preparation
The whole-product cost per 100 mg of declared preparation is moderate; this is an estimate based on preparation weight.
Acerola · 25 mg OverallScore20
The serving provides 25 mg of acerola, but its preparation details limit what can be inferred about its vitamin C contribution. The acerola species and plant part are not specified in the available information. The available information does not specify an extract ratio or vitamin C content for the acerola. A price comparison was not included.
How this ingredient is rated
Composition and Label Disclosure20
The available information does not specify an extract ratio or vitamin C content for the acerola.
Marker and Preparation Disclosure
The available information does not specify an extract ratio or vitamin C content for the acerola.
Composition and Label Disclosure20
The serving lists 25 mg of acerola. The acerola species and plant part are not specified in the available information.
Acerola Botanical Identity Disclosure
The acerola species and plant part are not specified in the available information.
Commercial Price and Usability
The cost per serving was not assessed for acerola.
Alternative products
Report alternatives
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.
- A randomized, double-masked study on the treatment of retinal vein occlusion with troxerutin
- 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.
- The effects of rutin flavonoid supplement on glycemic status, lipid profile, atherogenic index of plasma, brain-derived neurotrophic factor (BDNF), some serum inflammatory, and oxidative stress factors in patients with type 2 diabetes mellitus: A double-blind, placebo-controlled trial.
- Rutin ameliorates inflammation and improves metabolic function: A comprehensive analysis of scientific literature.
- Rutin-loaded chitosan microspheres: Characterization and evaluation of the anti-inflammatory activity.
- Oral enzyme combination therapy reduces systemic inflammation, urinary CTXII and pain in knee osteoarthritis: a proof-of-mechanism, randomised, crossover, double-blind, placebo-controlled trial.