$21.29 $0.04 per serving
Product analysis
100% Pure Vitamin C Powder provides vitamin C to help meet nutritional needs and support normal immune function and collagen formation.
AI assessment of the formula, label and price. How scoring works
Nutrient Quality40
Vitamin C is identified as ascorbic acid. That gives a clear nutrient source without establishing an additional absorption advantage.
Ingredient Transparency100
The vitamin C amount and form are stated. You can therefore compare the serving with other vitamin C sources.
Value For Money100
The vitamin C amount is economical for the serving cost. Its single-nutrient formula makes that contribution straightforward to compare.
Customer Satisfaction80
Customer feedback is favorable across 912 ratings. Those opinions give useful satisfaction context without proving effects on immunity or skin.
Product Focus79
A single nutrient keeps the formula focused on vitamin C needs. The clearest roles are nutritional support for normal immune activity and collagen formation, especially when intake is low.
- Format
Powder - Container
- 1 lb(s)
- Per serving
- $0.04
- Customer rating
- 4.7 · 912 ratings
Goals
Impact
Highest effect
Vitamin C · 1000 mg
Vitamin C supports normal immune-cell activity, and regular supplementation may modestly shorten colds. The declared amount fully meets the saved comparison, but that comparison does not identify an optimal dose or imply more benefit at larger amounts. The supplied context does not establish reliable infection prevention or treatment of an already established cold. Its saved contribution is concentrated in innate immune activity.
How this product is rated for Immunity
Ingredient fit94
Vitamin C offers a focused contribution and fully meets the saved amount comparison.
Goal fit
Vitamin C is the sole credited ingredient and directly relates to immune-cell activity.
Dose adequacy
The declared amount fully meets the saved comparison without establishing extra benefit at higher exposure.
Pathways60
Innate immune activity leads, with smaller barrier and oxidative-balance contributions.
Depth
Innate immune-cell activity has the strongest coverage.
Breadth
Only innate immune activity reaches substantial coverage.
Evidence100
Vitamin C has the strongest saved support, including modest cold-duration findings with regular use.
Evidence strength
Regular vitamin C supplementation may modestly shorten colds, without reliably preventing infection.
Studied preparation
Qualifying credited preparations meet the saved preparation criteria; this does not establish superiority of particular forms.
Formulation logic100
Credited ingredients have no assessed missing partner or conflict. Their amount qualification follows the saved findings.
Partner coverage
Credited ingredients work alone or have their relevant partners.
Conflicts
No assessed ingredient conflict was triggered.
Effective doses
Vitamin C clears the saved minimum amount threshold.
Impact
High effect
Vitamin C · 1000 mg
Vitamin C supports collagen formation and helps restore impaired wound healing when intake is low. Extra vitamin C has no established skin benefit when intake is already adequate. The disclosed serving received full amount recognition in the saved result, but this does not demonstrate greater hydration, a stronger skin barrier or improved response to sunlight.
How this product is rated for Skin Health
Ingredient fit94
The ingredient selection is concentrated on its named skin-related nutrient role, though the product also has other stated uses. The ingredients that contributed met the saved amount criteria; this does not establish an effective cosmetic dose.
Goal fit
The ingredient selection is concentrated on its named skin-related nutrient role, though the product also has other stated uses.
Dose adequacy
The ingredients that contributed met the saved amount criteria; this does not establish an effective cosmetic dose.
Pathways0
The saved findings did not extend to collagen structure, water binding, barrier lipids or ultraviolet antioxidant defence.
Depth
No evaluated skin mechanism received coverage; the nutrient contribution was kept separate.
Breadth
None of the evaluated mechanisms reached the saved breadth criterion.
Evidence100
Vitamin C drove the strongest saved evidence finding, with the clearest practical benefit in correcting low intake.
Evidence strength
Vitamin C drove the strongest saved evidence finding, with the clearest practical benefit in correcting low intake.
Studied preparation
The saved result recognized the qualifying preparations; that does not establish a form-specific cosmetic advantage.
Formulation logic100
No required partner was missing and no listed conflict was matched. The contributing ingredients met the saved minimum amount criterion.
Partner coverage
The contributing ingredients did not lack a required partner; this does not imply added benefit from combining them.
Conflicts
No listed ingredient conflict was matched in the saved result.
Effective doses
All contributing ingredients met the saved minimum amount criterion, which is not proof of a clinically effective skin dose.
Impact
High effect
Vitamin C · 1000 mg
Vitamin C contributes antioxidant support, but its vision evidence comes from a defined combination used in selected people with age-related macular degeneration. This serving reaches the saved amount comparison. Vitamin C alone has not been shown here to improve routine visual performance or prevent eye disease.
How this product is rated for Eye Health
Ingredient fit94
The relevant active is concentrated in this formula, although its uses extend beyond vision. The selected serving reaches the saved amount comparison; this is not a proven routine vision dose.
Goal fit
The relevant active is concentrated in this formula, although its uses extend beyond vision.
Dose adequacy
The selected serving reaches the saved amount comparison; this is not a proven routine vision dose.
Pathways47
The main assigned contribution concerns retinal and lens antioxidant defense, without establishing a clinical improvement. Coverage was concentrated in one specified mechanism.
Depth
The main assigned contribution concerns retinal and lens antioxidant defense, without establishing a clinical improvement.
Breadth
Only retinal and lens antioxidant defense reached the saved coverage requirement.
Evidence68
Vitamin C leads the saved comparison. Its recognized amount and preparation do not independently establish routine visual improvement.
Evidence strength
Vitamin C leads the saved evidence comparison; the supplied clinical population and combination limits still apply.
Studied preparation
The saved comparison recognizes the qualifying preparations; this does not establish that the whole product matches a clinical regimen.
Formulation logic100
The included contributions meet the saved amount requirement, with no missing required partner or identified conflict.
Partner coverage
No required partner was missing under the supplied partner check; this does not establish a complete clinical eye-health regimen.
Conflicts
No ingredient conflict was identified by the supplied checks.
Effective doses
The included contributions met the saved minimum amount requirement, which is not proof of an effective routine vision dose.
Impact
High effect
Vitamin C · 1000 mg
Vitamin C supplies an ordinary nutrient contribution when dietary intake falls short, rather than establishing protection against infections or chronic disease. These nutritional roles do not establish additional health benefits when intake is already adequate.
How this product is rated for Everyday Health
Ingredient fit94
Vitamin C provides a nutritional connection to general health. Amount support reaches the saved comparison endpoints.
Goal fit
Vitamin C is the focused nutritional connection to general health.
Dose adequacy
The retained amounts reach their comparison endpoints; these do not represent proven benefit thresholds or justify higher intakes.
Pathways54
The strongest connection is antioxidant and immune defence. The formula also represents the areas listed below.
Depth
The strongest represented area is antioxidant and immune defence, describing nutritional roles rather than a measured improvement in health.
Breadth
The represented areas are antioxidant and immune defence.
Evidence74
Vitamin C is the leading retained contribution. The supplied context supports nutritional availability when intake is low, without establishing added benefit with adequate intake.
Evidence strength
Vitamin C provides the leading retained contribution; its nutritional relevance does not establish broad disease prevention.
Studied preparation
The retained preparations meet the saved checks; no superiority of chemical form or delivery follows.
Formulation logic100
No configured conflict or missing required partner was identified; the retained amount threshold does not establish clinical effectiveness.
Partner coverage
No required partner is missing among the retained ingredients; combining them does not establish extra health benefit.
Conflicts
No configured ingredient conflict was identified.
Effective doses
The retained ingredients meet the amount threshold used here, which is not proof of clinical benefit.
Impact
Highest effect
Vitamin C · 1000 mg
Vitamin C has a limited connection to lower inflammation markers: the supplied trial was null overall, with a CRP reduction only among people starting with elevated CRP. This does not establish a routine clinical anti-inflammatory benefit.
How this product is rated for Inflammation
Ingredient fit94
Vitamin C provides the main ingredient connection. Its saved amount comparison is distinct from a proven clinical anti-inflammatory dose.
Goal fit
Vitamin C provides the main ingredient connection, while the product is also linked to other goals.
Dose adequacy
The included amount meets the saved comparison exposure; this does not establish a proven clinically effective anti-inflammatory dose.
Pathways55
The strongest connection is oxidative and mitochondrial stress. Other reviewed mechanisms have limited coverage.
Depth
The main supplied connection is oxidative and mitochondrial stress, through Vitamin C. This mechanism does not establish relief of inflammatory symptoms.
Breadth
Only one reviewed mechanism reaches the saved coverage threshold, leaving a narrow connection rather than broad anti-inflammatory support.
Evidence87
Vitamin C leads the saved evidence finding. Human findings remain narrow and do not establish routine broad clinical benefit.
Evidence strength
Vitamin C leads the saved evidence comparison; the supplied human outcomes remain limited by the specific biomarker, population and preparation findings.
Studied preparation
The included ingredients match preparations recognized in the saved comparison; clinical applicability still depends on the populations and outcomes studied.
Formulation logic100
No missing required partner or matched conflict was identified, and the included ingredients meet the saved amount threshold.
Partner coverage
The relevant ingredients act independently or have their required partner; this does not establish an extra benefit from combining them.
Conflicts
No conflict was identified by the supplied checks; this is a limited formulation finding rather than a general safety conclusion.
Effective doses
The included ingredients meet the saved amount threshold, which is not a proven minimum dose for clinical anti-inflammatory benefit.
Ingredients
| Ingredient | Amount per serving | Score |
|---|---|---|
Vitamin C (Ascorbic Acid) | 1000 mg |
Vitamin C (Ascorbic Acid) · 1000 mg OverallScore60
A serving provides 1,000 mg of vitamin C as ascorbic acid. Based on the whole-product price, that amount costs about $0.05.
How this ingredient is rated
Active Ingredient Quality & Bioavailability30
Vitamin C is provided 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 Transparency70
A serving supplies 1,000 mg of vitamin C. The other-ingredient panel was unavailable for assessment.
Optimal Dosage Targeting
A serving supplies 1,000 mg of vitamin C.
Purity & Excipient Quality
The saved other-ingredient panel is unavailable, so additives cannot be assessed.
Mineral & Source Transparency
The 1000 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 $0.05 per 1,000 mg of vitamin C.
Price per Gram of Vitamin C
Based on the whole-product price, the cost is about $0.05 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.