$17.39 $0.06 per serving
Product analysis
C 500 mg supports normal collagen formation and immune function, with the clearest nutritional benefit when vitamin C intake is low.
AI assessment of the formula, label and price. How scoring works
Nutrient Quality40
Calcium ascorbate is clearly identified as the source of vitamin C and calcium. That description alone does not establish a comparative quality advantage.
Ingredient Transparency100
Both nutrient amounts and forms are disclosed. The shared source is clear, making comparisons with other vitamin C preparations straightforward.
Value For Money67
Vitamin C offers good value at the full serving cost. The separate value of the calcium contribution remains uncertain.
Customer Satisfaction83
Customer feedback is very positive. Close to a thousand ratings provide a substantial base for judging satisfaction.
Product Focus68
Vitamin C provides the main nutritional benefit, supporting normal skin and immune functions. The small calcium amount does not establish a meaningful additional purpose.
- Format
Tablet - Container
- 250 Tablet(s)
- Per serving
- $0.06
- Also available
C 1000 mg$18.39- Customer rating
- 4.8 · 997 ratings
Goals
Impact
High effect
Vitamin C · 500 mg
Impact
High effect
Vitamin C · 500 mg
Impact
High effect
Vitamin C · 500 mg
Impact
Moderate effect
Vitamin C · 500 mg
Impact
High effect
Vitamin C · 500 mg
Ingredients
| Ingredient | Amount per serving | Score |
|---|---|---|
Vitamin C (Calcium Ascorbate) | 500 mg | |
Calcium (Calcium Ascorbate) | 56 mg |
Vitamin C (Calcium Ascorbate) · 500 mg OverallScore85
It provides 500 mg of vitamin C per serving at a moderate cost per gram. It uses Calcium Ascorbate.
How this ingredient is rated
Active Ingredient Quality & Bioavailability83
It uses Calcium Ascorbate. Calcium Ascorbate is a buffered mineral form.
Vitamin C Chemical Form & Delivery System
It uses Calcium Ascorbate.
Gastric Comfort & pH Balance
Calcium Ascorbate is a buffered mineral form.
Dose, Safety & Label Transparency91
The serving provides 500 mg of vitamin C. Standard excipients are present.
Optimal Dosage Targeting
Each serving provides 500 mg of vitamin C.
Purity & Excipient Quality
The other-ingredient panel includes standard excipients.
Mineral & Source Transparency
The vitamin C amount and calcium amount of 56 mg are stated.
Value80
The cost per gram of vitamin C is moderate.
Price per Gram of Vitamin C
The cost per gram of vitamin C is moderate.
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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.