$21.00 $0.25 per serving
Product analysis
Buffered Vitamin C Powder supplies vitamin C that supports normal immune function and collagen formation, at a low cost for the amount provided.
AI assessment of the formula, label and price. How scoring works
Nutrient Quality36
Quality remains uncertain for most of the nutrient contributions. The potassium carbonate form is less favorable, while naming the other forms alone does not establish their quality.
Ingredient Transparency100
The amount and form are clearly disclosed. You can compare what a serving provides without guessing the active ingredient.
Value For Money70
The vitamin C contribution is inexpensive for the amount supplied, and the potassium-related serving cost is also favorable. Value for the other minerals remains uncertain.
Customer Satisfaction81
Customer feedback is very positive. The large review pool gives a useful view of satisfaction, without establishing health benefits.
Product Focus71
Vitamin C supplies the clearest support for normal immune, antioxidant and collagen functions. The 4,000 mg serving does not establish extra benefit or safety, and the smaller mineral amounts add only limited nutritional support.
- Format
Powder - Container
- 454 Gram(s)
- Per serving
- $0.25
- Customer rating
- 4.7 · 1,108 ratings
Goals
Impact
High effect
Magnesium · 55 mgZinc · 2 mgVitamin C · 4000 mg
Impact
High effect
Zinc · 2 mgVitamin C · 4000 mg
Impact
Highest effect
Potassium · 365 mgMagnesium · 55 mgVitamin C · 4000 mg
Impact
High effect
Vitamin C · 4000 mg
Impact
Moderate effect
Magnesium · 55 mg
Impact
High effect
Zinc · 2 mgVitamin C · 4000 mg
Ingredients
| Ingredient | Amount per serving | Score |
|---|---|---|
Vitamin C (Ascorbic Acid) | 4000 mg | |
Calcium (Calcium Carbonate) | 145 mg | |
Magnesium (Magnesium Carbonate) | 55 mg | |
Zinc (Zinc Gluconate) | 2 mg | |
Potassium (Potassium Carbonate) | 365 mg |
Potassium (Potassium Carbonate) · 365 mg OverallScore59
Each serving lists 365 mg of potassium. The cost per serving is low. The source is potassium carbonate.
How this ingredient is rated
Active Ingredient Quality & Bioavailability20
The source is potassium carbonate.
Potassium Form Quality
The source is potassium carbonate.
Dose, Safety & Label Transparency78
The potassium amount is listed as 365 mg per serving, without explicit elemental-potassium wording.
Potassium Dosage Potency
Each serving lists 365 mg of potassium.
Elemental Yield Transparency
The potassium amount is listed as 365 mg per serving, without explicit elemental-potassium wording.
Value100
The cost per serving is low.
Potassium Value Efficiency
The cost per serving is low.
Vitamin C (Ascorbic Acid) · 4000 mg OverallScore62
A serving provides 4000 mg of vitamin C at a low cost per gram. It uses ascorbic acid, an unbuffered form. At this high amount, absorption efficiency falls and diarrhea risk increases.
How this ingredient is rated
Active Ingredient Quality & Bioavailability39
Vitamin C comes from ascorbic acid. Ascorbic acid is an unbuffered acid form.
Vitamin C Chemical Form & Delivery System
Vitamin C comes from ascorbic acid.
Gastric Comfort & pH Balance
Ascorbic acid is an unbuffered acid form.
Dose, Safety & Label Transparency66
A serving provides 4000 mg of vitamin C. At this high amount, absorption efficiency falls and diarrhea risk increases. The available other-ingredient panel has no flagged additives.
Optimal Dosage Targeting
A serving provides 4000 mg of vitamin C. At this high amount, absorption efficiency falls and diarrhea risk increases.
Purity & Excipient Quality
The available other-ingredient panel has no flagged additives.
Mineral & Source Transparency
The vitamin C amount and ascorbic acid source are stated.
Value100
The cost per gram of vitamin C is low.
Price per Gram of Vitamin C
The cost per gram of vitamin C is low.
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Sources
Published studies used for the product analysis and the top-ranked studies for each ingredient and goal.
- Circulating and dietary magnesium and risk of cardiovascular disease: a systematic review and meta-analysis of prospective studies.
- Magnesium and the risk of cardiovascular events: a meta-analysis of prospective cohort studies.
- Quantitative Association Between Serum/Dietary Magnesium and Cardiovascular Disease/Coronary Heart Disease Risk: A Dose-Response Meta-analysis of Prospective Cohort Studies.
- Comparative Efficacy of Nutraceuticals on Endothelial Function: A Systematic Review and Network Meta-Analysis.
- Serum magnesium, mortality, and cardiovascular disease in chronic kidney disease and end-stage renal disease patients: a systematic review and meta-analysis.
- Sex-specific associations between sodium and potassium intake and overall and cause-specific mortality: a large prospective U.S. cohort study, systematic review, and updated meta-analysis of cohort studies.
- Potassium intake, stroke, and cardiovascular disease a meta-analysis of prospective studies.
- Blood pressure response to changes in sodium and potassium intake: a metaregression analysis of randomised trials.
- Twenty-Four-Hour Urinary Sodium and Potassium Excretion and Their Associations With Blood Pressure Among Adults in China: Baseline Survey of Action on Salt China.
- Dietary Sodium and Potassium Intake and Risk of Non-Fatal Cardiovascular Diseases: The Million Veteran Program.
- Vitamin C may reduce troponin and CKMB levels after PCI and CABG: a meta-analysis.
- Vitamin C improves endothelium-dependent vasodilation by restoring nitric oxide activity in essential hypertension.
- Vitamin C supplementation improves blood pressure and oxidative stress after acute exercise in patients with poorly controlled type 2 diabetes mellitus: A randomized, placebo-controlled, cross-over study.
- Vascular benefits of vitamin C supplementation against fine particulate air pollution in healthy adults: A double-blind randomised crossover trial.
- Ascorbic acid reduces blood pressure and arterial stiffness in type 2 diabetes.
- Perioperative systemic magnesium to minimize postoperative pain: a meta-analysis of randomized controlled trials.
- Long-term outcome after intravenous magnesium sulphate in suspected acute myocardial infarction: the second Leicester Intravenous Magnesium Intervention Trial (LIMIT-2).
- Association of magnesium sulfate use with mortality in critically ill patients with sepsis: a retrospective propensity score-matched cohort study.
- Hypomagnesemia and Mortality in Incident Hemodialysis Patients.
- The effects of magnesium supplementation on abnormal uterine bleeding, alopecia, quality of life, and acne in women with polycystic ovary syndrome: a randomized clinical trial.