$8.50 $0.03 per serving
Product analysis
C 500 mg offers economical vitamin C to support normal collagen formation and immune function, particularly when intake is low.
AI assessment of the formula, label and price. How scoring works
Nutrient Quality40
The ascorbic acid form is clearly identified. Its comparative quality remains uncertain, without that uncertainty showing poor quality.
Ingredient Transparency100
The vitamin C amount and form are both disclosed. That makes the single-nutrient formula straightforward to compare.
Value For Money100
The vitamin C content offers favorable value. Its low cost does not establish extra benefit from taking more than is nutritionally needed.
Customer Satisfaction83
Customer feedback is very positive across more than a thousand ratings. The large review pool gives a substantial view of satisfaction without establishing health effects.
Product Focus71
The single nutrient keeps the formula centered on vitamin C’s nutritional role. Its main practical use is helping meet intake needs, with modest cold-duration benefits possible from regular use.
- Format
Tablet - Container
- 250 Tablet(s)
- Per serving
- $0.03
- Also available
C 1000 mg$16.71- Customer rating
- 4.7 · 1,368 ratings
Goals
Impact
High effect
Vitamin C · 500 mg
Vitamin C supports normal immune-cell activity and has modest evidence for shortening cold duration when used regularly. The 500 mg serving provides a meaningful amount within the supplied comparisons, although a serving does not establish a regular-use regimen. It does not promise infection prevention or treatment of an established cold, and the supplied context assigns no additional benefit to special vitamin C forms.
How this product is rated for Immunity
Ingredient fit74
Vitamin C provides a clear connection to immunity. Its serving supplies a partial amount against the saved comparison.
Goal fit
Vitamin C is the sole retained contributor, giving the formula a clear immune connection.
Dose adequacy
The 500 mg serving meets the saved minimum but remains below the upper comparison amount.
Pathways40
Vitamin C gives the strongest support to innate immune-cell activity, with more limited barrier and antioxidant coverage.
Depth
Innate immune-cell activity is the strongest area.
Breadth
Only innate immune-cell activity reaches the saved coverage threshold.
Evidence100
Vitamin C provides the strongest evidence category used here, bounded to modest regular-use cold-duration support.
Evidence strength
Vitamin C supports modest shortening of colds with regular use, without a general prevention claim.
Studied preparation
The vitamin C preparation was accepted; no form superiority is established.
Formulation logic100
Vitamin C meets the saved minimum amount threshold, works without a required partner and triggers no configured conflict.
Partner coverage
Vitamin C does not require an additional partner.
Conflicts
No configured ingredient conflict was identified.
Effective doses
Vitamin C meets the saved minimum amount threshold.
Impact
High effect
Vitamin C · 500 mg
Vitamin C is needed to build collagen and maintain normal wound healing. Correcting low intake can restore these functions, but extra vitamin C has no established skin benefit when intake is adequate. The supplied evidence does not show added cosmetic or UV-protection benefits from the large serving amount or the named delivery form.
How this product is rated for Skin Health
Ingredient fit94
The relevant active is the main focus of the supplied ingredient findings. The relevant amount reaches the recorded exposure comparison; this does not establish added skin benefit.
Goal fit
The relevant active is the main focus of the supplied ingredient findings.
Dose adequacy
The relevant amount reaches the recorded exposure comparison; this does not establish added skin benefit.
Pathways0
No direct contribution to the four tracked skin mechanisms was recorded, despite vitamin C’s normal nutritional role.
Depth
No direct contribution to the four tracked skin mechanisms was recorded, despite vitamin C’s normal nutritional role.
Breadth
No tracked skin mechanism reaches the recorded coverage threshold.
Evidence100
Vitamin C’s role in collagen and deficiency-related healing is established; extra cosmetic benefit in adequately nourished adults is not.
Evidence strength
Vitamin C’s role in collagen and deficiency-related healing is established; extra cosmetic benefit in adequately nourished adults is not.
Studied preparation
The recorded preparation comparison is satisfied, but preparation-specific study findings do not automatically transfer to every ingredient or finished product.
Formulation logic100
No required partner was missing and no defined conflict was identified. The relevant amounts meet the recorded minimum comparison; this is not proof of a clinically effective skin dose.
Partner coverage
No required partner was missing in the recorded findings; this does not establish an added combination benefit.
Conflicts
No defined ingredient conflict was identified in the supplied findings.
Effective doses
The relevant amounts meet the recorded minimum comparison; this is not proof of a clinically effective skin dose.
Impact
High effect
Vitamin C · 500 mg
Vitamin C contributes to nutritional adequacy rather than proven prevention of infections or chronic disease. Amounts above ordinary intake references do not establish extra benefit when nutrient intake is already adequate.
How this product is rated for Everyday Health
Ingredient fit74
The ingredient focus and declared amounts provide a partial match to the saved references. The relevant roles remain limited to the specific outcomes described above.
Goal fit
The relevant ingredients are concentrated on this goal; their links to other uses also affect the saved focus finding.
Dose adequacy
The recognized amounts only partly match the saved references; these references do not define proven effective clinical doses.
Pathways17
The strongest saved finding concerns antioxidant and immune defence. The recognized breadth is limited across the other nutritional processes.
Depth
The strongest saved contribution concerns antioxidant and immune defence, describing ingredient roles rather than proven improvement in health.
Breadth
No pathway reaches the saved threshold for broader coverage.
Evidence74
Vitamin C leads the saved evidence finding. The population, outcome and preparation limits described above still apply.
Evidence strength
Vitamin C supplies the leading saved evidence finding, subject to its specific population and outcome limitations.
Studied preparation
The saved findings recognize preparation matches for qualifying ingredients, without extending the evidence to broader aging outcomes.
Formulation logic100
The recognized ingredients have their required partners or work independently, and no matched conflict was recorded. Amount limitations remain relevant.
Partner coverage
The recognized ingredients work independently or have their required partner; no extra combination benefit is established.
Conflicts
No matched ingredient conflict was recorded in the supplied calculation.
Effective doses
All recognized ingredients meet the saved amount threshold, a calculation reference rather than proof of general-health benefit.
Impact
High effect
Vitamin C · 500 mg
Vitamin C is involved in antioxidant protection. A reduction in an inflammation marker was found mainly in people with elevated inflammation at the outset; the larger trial was null overall, so routine anti-inflammatory benefit remains uncertain.
How this product is rated for Inflammation
Ingredient fit74
Vitamin C provide the relevant ingredient findings. Amounts and the wider formula determine the degree of alignment.
Goal fit
The relevant ingredient is the main focus, although it is also associated with other goals.
Dose adequacy
The relevant amounts provide partial alignment with the saved reference amounts, with some below the studied exposure.
Pathways17
The main connection is through antioxidant and mitochondrial processes. No pathway reaches the saved coverage threshold at this serving.
Depth
The strongest finding concerns antioxidant and mitochondrial processes, with limited coverage at this serving.
Breadth
No pathway reaches the saved coverage threshold at this serving.
Evidence87
Vitamin C leads the evidence finding. The reviewed material is recognized in the saved findings.
Evidence strength
Vitamin C provides the leading evidence finding; the supported outcomes and populations limit how broadly it applies.
Studied preparation
The preparations receiving this finding are treated as matching the reviewed material; this does not establish the same daily regimen.
Formulation logic100
The relevant ingredients have no unmet partner requirement or configured conflict. Their amount thresholds do not establish clinical benefit.
Partner coverage
The relevant ingredients have no unmet partner requirement in the supplied findings.
Conflicts
No configured ingredient conflict was identified in the supplied findings.
Effective doses
The ingredients counted here clear the saved amount threshold; that threshold does not prove an effective dose for every user.
Impact
High effect
Vitamin C · 500 mg
Vitamin C contributes to antioxidant defenses in eye tissues. Its vision evidence comes from a defined combination used in selected people with age-related macular degeneration; vitamin C alone has not been shown to improve routine visual performance or prevent eye disease.
How this product is rated for Eye Health
Ingredient fit94
Vitamin C supplies the main eye-related nutritional connection and reaches its comparison reference amount.
Goal fit
The relevant ingredient gives this formula a clear eye-nutrition focus, although it is also linked to other goals.
Dose adequacy
The declared amount reaches the full reference range used for comparison; higher amounts do not establish greater vision benefit.
Pathways47
The recorded findings concentrate on retinal and lens antioxidant defense. Other visual functions receive little or no coverage.
Depth
The strongest recorded coverage concerns retinal and lens antioxidant defense, without establishing a corresponding improvement in vision.
Breadth
Only one of the listed eye-function areas reaches the comparison’s coverage target; the findings do not support broad visual-performance claims.
Evidence68
Vitamin C’s supplied eye-health evidence concerns a selected clinical combination rather than standalone routine visual benefits.
Evidence strength
Vitamin C drives the strongest recorded evidence finding, but the supplied context limits transfer to routine vision improvement.
Studied preparation
The counted ingredients match the preparations recognized in the saved comparison; this does not transfer study benefits to every user.
Formulation logic100
No missing partners or configured conflicts were identified. Amounts qualify unevenly where the supplied findings identify low or unresolved contributions.
Partner coverage
No missing ingredient partner was identified for the counted contributions; this does not establish added benefit from combining them.
Conflicts
No configured ingredient conflict was identified in the supplied findings.
Effective doses
All counted ingredients meet the comparison’s amount threshold, which is not a clinically proven effective dose.
Ingredients
| Ingredient | Amount per serving | Score |
|---|---|---|
Vitamin C (Ascorbic Acid) | 500 mg |
Vitamin C (Ascorbic Acid) · 500 mg OverallScore68
A tablet provides 500 mg of vitamin C as ascorbic acid. The whole-product price works out to about $0.07 per 1,000 mg of vitamin C.
How this ingredient is rated
Active Ingredient Quality & Bioavailability30
Vitamin C is supplied as ascorbic acid, an acidic form without a captured buffering or stomach-friendly claim.
Vitamin C Chemical Form & Delivery System
The vitamin C is ascorbic acid, a basic form; no advanced delivery claim was captured.
Gastric Comfort & pH Balance
Ascorbic acid is an acidic form; the saved facts do not establish buffering or a stomach-friendly claim.
Dose, Safety & Label Transparency91
A serving supplies 500 mg of vitamin C. The amount and ascorbic acid source are identified.
Optimal Dosage Targeting
A serving supplies 500 mg of vitamin C.
Purity & Excipient Quality
The available other-ingredient panel includes standard excipients and has no substances flagged by the evaluation.
Mineral & Source Transparency
The 500 mg vitamin C amount and ascorbic acid source are identified; a mineral amount is not applicable to this form.
Value100
Based on the whole-product price, the cost is about $0.07 per 1,000 mg of vitamin C.
Price per Gram of Vitamin C
Based on the whole-product price, the cost is about $0.07 per 1,000 mg of vitamin C.
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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.