Buffered Gold C

Buffered Gold C

California Gold Nutrition4.8 (42,974 ratings)
Format:Powder Quantity: 8 Liquid(s) · 200 servings
Goals
$10.23 $0.05 per serving

Product analysis

78 out of 100

Buffered Gold C supports normal immune function and collagen formation while helping fill a vitamin C gap. Its favorable price adds practical value for that nutritional role.

AI assessment of the formula, label and price. How scoring works

Nutrient Quality40

Sodium ascorbate is clearly named, but its absorption quality cannot be compared confidently. The buffered form does not establish an extra health advantage.

Ingredient Transparency100

Vitamin C and sodium amounts and forms are clearly stated. That makes it easy to check both the nutrient content and the source used.

Value For Money100

The serving offers good value for vitamin C. Its cost also compares favorably in relation to the disclosed sodium content.

Customer Satisfaction94

Customer satisfaction is strongly positive across a very large number of ratings. The broad feedback base describes customer reception without proving immune or skin benefits.

Product Focus79

Vitamin C gives the formula a clear nutritional purpose across immune, skin and antioxidant functions. Its usefulness is mainly in meeting needs, with only modest support for shorter colds during regular use.

Format
Powder
Container
8 Liquid(s)
Per serving
$0.05
Customer rating
4.8 · 42,974 ratings
Report analysis

Goals

Immunity
Impact
Highest effect
A Ingredient FitC PathwaysA+ EvidenceA+ Formulation Logic
Vitamin C · 1000 mg

Vitamin C supports normal immune-cell function, and regular supplementation may modestly shorten colds. It does not reliably prevent infection or establish treatment of an existing cold. The declared serving contributes in the saved findings, without evidence that a special form or higher amount brings greater immune benefit.

How this product is rated for Immunity

Ingredient fit94

Relevant nutrient amounts contribute, with formula focus and serving quantities shaping the ingredient finding.
Goal fit
The relevant ingredients dominate the formula; product links to other goals still affect its recorded focus.
Dose adequacy
The serving reaches the saved amount comparison, which does not establish an optimal clinical immune dose.

Pathways60

The strongest assigned area is innate immune cell activity. These ingredient associations do not establish clinical infection protection.
Depth
The strongest assigned area is innate immune cell activity; this ingredient association does not establish reduced infection risk.
Breadth
Coverage is concentrated in innate immune cell activity. Other areas have less support in the saved findings.

Evidence100

Vitamin C provides the leading evidence contribution. The supported roles remain bounded by nutritional status and the preparation or regimen studied.
Evidence strength
Vitamin C leads the saved evidence finding, supporting a bounded nutrient role rather than general infection prevention.
Studied preparation
The saved preparation finding is complete for the included ingredients; matching an ingredient does not establish a tested whole-product regimen.

Formulation logic100

No missing required partner or configured ingredient conflict was identified. The serving amounts meet the included minimum comparisons without establishing a combined clinical benefit.
Partner coverage
No missing required partner limits the included ingredients in the saved findings; this does not demonstrate an added benefit from combining them.
Conflicts
No configured ingredient conflict was identified. This finding does not establish overall safety or cover every possible interaction.
Effective doses
The included ingredients reach the saved minimum amount threshold, which is not a proven effective clinical immune dose.
Study evidence
Vitamin C Supportive 53 studies
Everyday Health
Impact
High effect
A Ingredient FitD+ PathwaysB- EvidenceA+ Formulation Logic
Vitamin C · 1000 mg

Vitamin C contributes to normal antioxidant and immune functions and can help fill a dietary gap. Its substantial amount does not establish added benefit above adequate intake or prevention of infection and chronic disease. The buffered preparation does not establish a superior general health benefit in the supplied information.

How this product is rated for Everyday Health

Ingredient fit94

The assessed ingredients concentrate on nutritional roles relevant to general health. The relevant amounts fully meet the saved comparison amounts; that does not establish extra benefit above nutritional adequacy.
Goal fit
The assessed ingredients concentrate on nutritional roles relevant to general health.
Dose adequacy
The relevant amounts fully meet the saved comparison amounts; that does not establish extra benefit above nutritional adequacy.

Pathways54

The strongest connection is to antioxidant and immune functions, through the relevant nutrients in the selected serving. The broader findings cover antioxidant and immune functions.
Depth
The strongest connection is to antioxidant and immune functions, through the relevant nutrients in the selected serving.
Breadth
The broader findings cover antioxidant and immune functions.

Evidence74

Vitamin C provides the strongest supported contribution at the supplied amount, with usefulness conditional on nutritional need.
Evidence strength
Vitamin C provides the strongest supported contribution at the supplied amount, with usefulness conditional on nutritional need.
Studied preparation
The preparations of the contributing nutrients match those accepted in the supplied findings; this does not establish a superior form or delivery method.

Formulation logic100

All counted nutrients have amounts that meet the saved minimum contribution. The contributing nutrients can act independently or have the relevant partner present; no additional combination benefit is established.
Partner coverage
The contributing nutrients can act independently or have the relevant partner present; no additional combination benefit is established.
Conflicts
No assessed ingredient conflict was identified for the selected serving.
Effective doses
All counted nutrients have amounts that meet the saved minimum contribution.
Study evidence
Vitamin C Supportive 56 studies
Impact
High effect
A Ingredient FitD PathwaysC+ EvidenceA+ Formulation Logic
Vitamin C · 1000 mg

Vitamin C contributes to antioxidant nutrition and is the ingredient connecting this product to the vision goal. Its clinical eye evidence concerns a defined multi-ingredient regimen in selected people with age-related macular degeneration, rather than improved everyday vision from vitamin C alone. The serving amount receives full amount recognition in the saved result, without establishing additional visual benefit from higher intake.

How this product is rated for Eye Health

Ingredient fit94

Vitamin C provides the main antioxidant connection, with amount recognition distinct from evidence of everyday visual benefit.
Goal fit
The relevant ingredient is the formula’s main connection to vision, although it also serves other nutritional goals.
Dose adequacy
The counted ingredient amounts reach the saved reference range; this does not make them proven doses for better everyday vision.

Pathways47

The recorded connection centers on retinal and lens antioxidant defense. Coverage of other visual functions is limited.
Depth
The strongest recorded connection is retinal and lens antioxidant defense; this describes the ingredients’ assigned roles, rather than a demonstrated improvement in vision.
Breadth
The recorded findings are concentrated in retinal and lens antioxidant defense, leaving the other visual functions without substantial coverage.

Evidence68

Vitamin C leads the saved evidence finding. The supplied scientific context narrows what can be expected for routine visual performance.
Evidence strength
Vitamin C leads the saved evidence finding; the supplied context limits transfer to routine vision improvement.
Studied preparation
The counted preparations receive full recognition in the saved finding; this does not show that the complete product reproduces a clinical regimen.

Formulation logic100

The counted ingredients have no recorded missing-partner or conflict limitation. Meeting the amount threshold does not prove visual benefit.
Partner coverage
No missing partner reduced the counted ingredients’ contribution; this does not establish added benefit from combining them.
Conflicts
No listed ingredient conflict was triggered in the saved finding.
Effective doses
All counted ingredients meet the saved amount threshold; excluded small amounts do not establish ineffectiveness.
Study evidence
Vitamin C Disputed 24 studies
Skin Health
Impact
High effect
A Ingredient FitF PathwaysA+ EvidenceA+ Formulation Logic
Vitamin C · 1000 mg

Vitamin C is needed for normal collagen formation, and correcting low intake can restore impaired wound healing. That nutritional role does not establish extra cosmetic improvement when intake is adequate. The serving reaches the saved amount reference, but higher amounts do not establish more skin benefit. The supplied oral trial did not improve UV redness, and the declared form does not establish a cosmetic advantage.

How this product is rated for Skin Health

Ingredient fit94

The relevant ingredients provide a focused skin-health connection. Declared amounts meet the saved exposure references.
Goal fit
Relevant ingredients dominate the skin-health fit; links to other goals broaden the product's focus.
Dose adequacy
Declared amounts meet the exposure references without proving a cosmetic benefit or greater benefit from higher amounts.

Pathways0

The saved findings concern nutritional roles, with no coverage assigned to the four assessed skin pathways.
Depth
None of the assessed collagen, water-binding, barrier-lipid or UV pathways received coverage.
Breadth
No assessed pathways reach the saved breadth threshold.

Evidence100

Vitamin C leads the saved evidence contribution. Included preparations satisfy the saved check, without proving routine cosmetic improvement.
Evidence strength
Vitamin C supplies the leading contribution, subject to its specific outcome and population limits.
Studied preparation
Included ingredients satisfy the saved preparation check; this does not prove efficacy of the finished product.

Formulation logic100

No required partner is missing and no configured conflict was matched. Included ingredients clear the minimum amount comparison.
Partner coverage
No required partner is missing from the included contributions.
Conflicts
No configured ingredient conflict was matched.
Effective doses
Included ingredients clear the minimum amount comparison; this is distinct from a proven skin-treatment dose.
Study evidence
Vitamin C Supportive 53 studies
Impact
Highest effect
A Ingredient FitD+ PathwaysA- EvidenceA+ Formulation Logic
Vitamin C · 1000 mg

Vitamin C supports antioxidant defenses. The supplied trial was null overall, with lower CRP only in participants who started with elevated CRP; this does not establish routine anti-inflammatory benefit. Sodium ascorbate has no established anti-inflammatory advantage.

How this product is rated for Inflammation

Ingredient fit94

Vitamin C is the sole credited ingredient, though linked to several goals.
Goal fit
Vitamin C is the sole credited ingredient, though linked to several goals.
Dose adequacy
Vitamin C reaches the saved amount benchmark.

Pathways55

Oxidative and mitochondrial stress is the main area represented. Coverage of other areas is limited.
Depth
Oxidative and mitochondrial stress is the strongest area in the saved findings; this mapping does not establish a clinical effect.
Breadth
Only oxidative and mitochondrial stress reaches the saved coverage threshold, so coverage is narrow.

Evidence87

Vitamin C leads the saved evidence finding. The preparation is recognized, while the clinical limitations described above still apply.
Evidence strength
Vitamin C leads the saved evidence finding; this does not establish routine clinical anti-inflammatory benefit.
Studied preparation
The saved findings recognize the preparations of all credited ingredients; this does not establish equivalence for every clinical outcome.

Formulation logic100

The credited ingredients have no unmet partner requirement or matched conflict in the saved findings. Their amounts clear the threshold used for inclusion.
Partner coverage
Each credited ingredient can contribute independently or has its required partner.
Conflicts
No configured conflict was matched; this is limited to the combinations evaluated.
Effective doses
All credited ingredients clear the amount threshold used for inclusion; this is not proof of an effective clinical dose.
Study evidence
Vitamin C Supportive 50 studies

Ingredients

IngredientAmount per servingScore
Vitamin C (Sodium Ascorbate)
1000 mg 81
Sodium (Sodium Ascorbate)
130 mg 57
Gluten Free Adults 18–50 Dairy Free Vegetarian
Report overview
B+ Active Ingredient Quality & BioavailabilityB- Dose, Safety & Label TransparencyA+ Value
It provides 1000 mg of vitamin C per serving at a exceptionally low cost per gram of vitamin C. The vitamin C comes from Sodium Ascorbate. The other-ingredient panel is unavailable.
How this ingredient is rated

Active Ingredient Quality & Bioavailability83

The vitamin C comes from Sodium Ascorbate. Sodium ascorbate is a buffered mineral form.
Vitamin C Chemical Form & Delivery System
The vitamin C comes from Sodium Ascorbate.
Gastric Comfort & pH Balance
Sodium ascorbate is a buffered mineral form.

Dose, Safety & Label Transparency70

A serving provides 1000 mg of vitamin C. The other-ingredient panel is unavailable, so additives are unknown.
Optimal Dosage Targeting
Each serving provides 1000 mg of vitamin C, a substantial amount.
Purity & Excipient Quality
The other-ingredient panel is unavailable, so additives are unknown.
Mineral & Source Transparency
The vitamin C and sodium amounts and source are stated.

Value100

The cost per gram of vitamin C is exceptionally low.
Price per Gram of Vitamin C
The cost per gram of vitamin C is exceptionally low.
D Active Ingredient Quality & BioavailabilityD Dose, Safety & Label TransparencyA+ Value
A serving contains 130 mg of sodium, a relatively small amount for sweat replacement. The sodium comes from sodium ascorbate, and the whole-product serving costs about $0.05.
How this ingredient is rated

Active Ingredient Quality & Bioavailability48

The sodium source is sodium ascorbate. No trace-mineral complex or sodium bicarbonate is identified in the available facts.
Sodium Source Purity & Quality
The sodium source is sodium ascorbate.
Bioavailability of Supporting Electrolytes
The available facts do not identify potassium or magnesium forms, so their absorption cannot be compared.
Trace Mineral Complex & Buffering Forms
The available facts do not identify a trace-mineral complex or sodium bicarbonate.

Dose, Safety & Label Transparency45

The serving contains 130 mg of sodium. The other-ingredients panel is unavailable, so artificial color and sweetener details are unknown.
Sodium Dosage for Athletic Replenishment
The 130 mg sodium per serving is a relatively small amount for sweat replacement.
Ingredient Label Transparency
The sodium amount is individually quantified at 130 mg per serving.
Artificial Color and Sweetener Disclosure
The other-ingredients panel is unavailable, so the presence of artificial colors or sweeteners cannot be determined.

Value100

The whole-product serving costs about $0.05.
Price Per Serving vs. Collection Median
The whole-product serving costs about $0.05.
Report alternatives

Sources

Published studies used for the product analysis and the top-ranked studies for each ingredient and goal.

  1. 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.
    Aune D; Keum N; Giovannucci E; Fadnes LT; Boffetta P; Greenwood DC; Tonstad S; Vatten LJ; Riboli E; Norat T · The American journal of clinical nutrition · 2019
    Meta-analysis69 studies pooledEveryday Health forVitamin C
  2. 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.
    EFSA Panel on Dietetic Products, Nutrition and Allergies (NDA) · EFSA journal. European Food Safety Authority · 2026
    Guideline / consensusEveryday Health forVitamin C
  3. Vitamin C Depletion and All-Cause Mortality in Renal Transplant Recipients.
    Sotomayor CG; Eisenga MF; Gomes Neto AW; Ozyilmaz A; Gans ROB; Jong WHA; Zelle DM; Berger SP; Gaillard CAJM; Navis GJ; Bakker SJ · Nutrients · 2018
    Cohort study598 participantsEveryday Health forVitamin C
  4. 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.
    Pu L; Zhang R; Wang X; Zhao T; Sun H; Han L · Frontiers in nutrition · 2022
    Cohort study12,530 participantsEveryday Health forVitamin C
  5. 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.
    Khaw KT; Bingham S; Welch A; Luben R; Wareham N; Oakes S; Day N · Lancet (London, England) · 2001
    Cohort study19,496 participantsEveryday Health forVitamin C
  6. Role of Oral Vitamin 'C' on Astigmatic Errors in Phacoemulsification.
    Mohan S; Sah K; Khattri M; Ahmad L; Sachan SK · Current eye research · 2021
    Randomized trial400 participantsEye Health forVitamin C
  7. Ascorbic acid metabolites are involved in intraocular pressure control in the general population.
    Hysi PG; Khawaja AP; Menni C; Tamraz B; Wareham N; Khaw KT; Foster PJ; Benet LZ; Spector TD; Hammond CJ · Redox biology · 2019
    Observational studyEye Health forVitamin C
  8. Nutritional modulation of cataract.
    Weikel KA; Garber C; Baburins A; Taylor A · Nutrition reviews · 2014
    Narrative reviewEye Health forVitamin C
  9. Dietary n-3 Fatty Acid, α-Tocopherol, Zinc, vitamin D, vitamin C, and β-carotene are Associated with Age-Related Macular Degeneration in Japan.
    Aoki A; Inoue M; Nguyen E; Obata R; Kadonosono K; Shinkai S; Hashimoto H; Sasaki S; Yanagi Y · Scientific reports · 2017
    Case-control study530 participantsEye Health forVitamin C
  10. Adherence to a Mediterranean diet, lifestyle and age-related macular degeneration: the Coimbra Eye Study - report 3.
    Raimundo M; Mira F; Cachulo MDL; Barreto P; Ribeiro L; Farinha C; Laíns I; Nunes S; Alves D; Figueira J; Merle BM; Delcourt C; Santos L; Silva R · Acta ophthalmologica · 2019
    Case-control study883 participantsEye Health forVitamin C
  11. 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.
    EFSA Panel on Dietetic Products, Nutrition and Allergies (NDA) · EFSA journal. European Food Safety Authority · 2026
    Guideline / consensusImmunity forVitamin C
  12. Therapeutic effects of high-dose vitamin C supplementation in patients with COVID-19: a meta-analysis.
    Sun L; Zhao JH; Fan WY; Feng B; Liu WW; Chen RQ; Ban C; Dang AG; Wang M; Luo KT; Zhou GY; Yu FF; Ba Y · Nutrition reviews · 2024
    Meta-analysis2,334 participants14 studies pooledImmunity forVitamin C
  13. Effect of micronutrient supplements on influenza and other respiratory tract infections among adults: a systematic review and meta-analysis.
    Abioye AI; Bromage S; Fawzi W · BMJ global health · 2021
    Meta-analysisImmunity forVitamin C
  14. New evidence for antioxidant properties of vitamin C.
    Vojdani A; Bazargan M; Vojdani E; Wright J · Cancer detection and prevention · 2001
    Randomized trial20 participantsImmunity forVitamin C
  15. Enhanced Vitamin C Delivery: A Systematic Literature Review Assessing the Efficacy and Safety of Alternative Supplement Forms in Healthy Adults.
    Calder PC; Kreider RB; McKay DL · Nutrients · 2025
    Systematic review13 studies pooledImmunity forVitamin C
  16. Efficacy of Vitamin C as Glucocorticoid Substitute for Reducing Pain and Inflammation After Total Hip Arthroplasty: A Randomized Controlled Trial.
    Jiang W; Xu H; Jiang X; Zhan Y; Ju Y; Xie J; Huang Z; Huang Q; Pei F · The Journal of bone and joint surgery. American volume · 2025
    Randomized trial107 participantsInflammation forVitamin C
  17. The Impact of Vitamin C on Analgesic, Anti-inflammatory, and Hemostatic Outcomes After Total Hip and Knee Arthroplasty: A Systematic Review and Meta-Analysis.
    Moftakhari Hajimirzaei S; Bagherzadeh Cham M; Dolikhani M; Tabatabaee SM; Ebrahimpour A · The archives of bone and joint surgery · 2026
    Meta-analysis1,162 participants10 studies pooledInflammation forVitamin C
  18. The impact of vitamin C supplementation on the perioperative outcomes after total hip and knee arthroplasty: a systematic review and meta-analysis.
    Liu X; Guo J; Li Y; Yang Y; Liu M; Gao Q; Yang Y; Wu X; Yue C · BMC musculoskeletal disorders · 2026
    Meta-analysis852 participants8 studies pooledInflammation forVitamin C
  19. Therapeutic Impact of Ascorbic Acid on Oral and Periodontal Tissues: A Systematic Literature Review.
    Ruzijevaite G; Acaite E; Jagelaviciene E · Medicina (Kaunas, Lithuania) · 2025
    Systematic review811 participants17 studies pooledInflammation forVitamin C
  20. Oral vitamin C administration reduces early recurrence rates after electrical cardioversion of persistent atrial fibrillation and attenuates associated inflammation.
    Korantzopoulos P; Kolettis TM; Kountouris E; Dimitroula V; Karanikis P; Pappa E; Siogas K; Goudevenos JA · International journal of cardiology · 2005
    Randomized trial44 participantsInflammation forVitamin C