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Buffered Gold C

California Gold Nutrition
4.8
★ ★ ★ ★ ★
(49311 ratings)
Vitamin C 750 mg
Product Image
Score87
A well-dosed, buffered vitamin C capsule with clear disclosure and a large supply. Its 95 mg sodium contribution may rule it out for some users.
How scoring works
Quantity:240 Capsule(s) • (240 servings)
Goals:
Anti-Inflammatory Support
General Health
Immunity
Vision Support
Skin Health

Score 87

A well-dosed, buffered vitamin C capsule with clear disclosure and a large supply. Its 95 mg sodium contribution may rule it out for some users.
How scoring works

Also available as

2 options
1000.00mg • 8 Liquid(s) servings Sodium 130 mg, C 1000 mg • 8 Liquid(s) • 200 servings $10.23 ($0.05 per serving) 60 servings C 750 mg • 60 Capsule(s) • 60 servings $4.55 ($0.07 per serving)
$13.74($0.05 per serving)
iHerb
$ 13.74
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Analysis

A 750 mg amount provides substantial vitamin C in a lower-acid sodium ascorbate form. It supports normal antioxidant defenses, collagen formation, and immune function without relying on an oversized serving.

Both vitamin C and sodium are clearly quantified, and a capsule avoids powder measurement. The larger package suits consistent use and preserves the formula's simple focus.

No companion nutrients broaden support beyond vitamin C. Added sodium is the clear trade-off and should be considered in diets where daily sodium is closely controlled.

Who is it for
  • Adults seeking buffered vitamin C
  • People sensitive to acidic ascorbic acid
  • Regular users who want a large supply
Best for
  • Daily vitamin C support
  • Lower-acid supplementation
  • Convenient long-term use

Pros

  • Buffered sodium ascorbate
  • Meaningful 750 mg amount
  • Sodium contribution is clearly disclosed

Cons

  • Adds 95 mg sodium
  • Covers only one main nutrient
  • No complementary antioxidants

Warnings

  • Count the 95 mg sodium contribution if following a sodium-restricted diet.

Nutrient quality

94 Highest impact

Sodium ascorbate is a well-established buffered form that may improve stomach comfort. The vitamin C amount is substantial and well suited to routine supplemental use.

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Ingredient transparency

85 Highest impact

Vitamin C and the associated sodium are each listed with a specific amount. A complete inactive ingredient list was not supplied.

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Customer satisfaction

73 High impact

The available aggregate rating is strong for this category. No firsthand outcome details were supplied, so alignment with the intended use is uncertain.

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Value for money

96 Highest impact

The buffered form and meaningful amount provide strong quality for the serving cost. The product compares favorably with routine buffered vitamin C options.

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Goals

Anti-Inflammatory Support
Anti-Inflammatory Support
Impact
Highest effect
B Goal FitA+ Strength of SupportC CoverageA+ Formula Quality
Vitamin C · 750 mg

Buffered vitamin C supports antioxidant defense and may be easier on the stomach than plain ascorbic acid. Its established role in antioxidant recycling is relevant to inflammatory stress, though it remains a narrow single-pathway approach.

The well-targeted vitamin C amount is clearly disclosed as sodium ascorbate and falls within a useful range. Each serving also contributes a modest sodium amount, which people following a strict sodium restriction should include in their daily total.

Study evidence
Vitamin C Supportive 50 studies
General Health
General Health
Impact
Highest effect
A- Goal FitA Strength of SupportC- CoverageA+ Formula Quality
Vitamin C · 750 mg

Buffered sodium ascorbate provides a meaningful vitamin C amount with better stomach tolerance than straight ascorbic acid. The exact vitamin C and sodium contributions are clearly stated, supporting confident daily use.

The formula remains narrow but offers strong depth for antioxidant, immune, and collagen-related functions. Each serving contributes 95 mg of sodium, which people following strict sodium limits should include in their daily total.

Study evidence
Vitamin C Supportive 56 studies
Immunity
Immunity
Impact
Highest effect
B+ Goal FitA- Strength of SupportD+ CoverageA+ Formula Quality
Vitamin C · 750 mg

Sodium ascorbate provides a substantial buffered vitamin C amount that may be gentler than plain ascorbic acid for some users. Vitamin C has established roles in collagen formation, antioxidant defense, and normal immune function.

The formula remains narrow and adds a modest sodium amount with every serving. People restricting sodium should count that contribution, while sustained high vitamin C intake may cause digestive upset or be unsuitable for those prone to oxalate kidney stones.

Study evidence
Vitamin C Supportive 53 studies
Vision Support
Vision Support
Impact
High effect
C+ Goal FitA- Strength of SupportD CoverageB Formula Quality
Vitamin C · 750 mg

750 mg of vitamin C provides substantial antioxidant support for the lens and other ocular tissues. An isolated vitamin C formula lacks the carotenoids, zinc, copper, and omega-3 fats used in more complete eye-support strategies.

Sodium ascorbate is clearly identified and 95 mg of sodium accompanies the buffered form.. The narrow formula is best viewed as foundational antioxidant support rather than comprehensive vision care.

Study evidence
Vitamin C Disputed 24 studies
Skin Health
Skin Health
Impact
High effect
C+ Goal FitA- Strength of SupportD+ CoverageB- Formula Quality
Vitamin C · 750 mg

750 mg of sodium ascorbate offers a well-disclosed collagen cofactor in a buffered form. Vitamin C may also support antioxidant defenses, but it does not directly supply collagen or moisture-barrier ingredients.

The dose is substantial and the sodium ascorbate form may be gentler than straight ascorbic acid. Skin support remains narrow because the formula has no ceramides, hyaluronic acid, or structural protein.

Study evidence
Vitamin C Supportive 53 studies

Ingredients

IngredientAmount per serving
Vitamin C (Sodium Ascorbate)
 750 mg
Sodium (Sodium Ascorbate)
 95 mg
Gluten Free Adults 18–50 Dairy Free Vegetarian
Report overview
Vitamin C (Sodium Ascorbate) · 750 mg OverallScore93
B+ Active Ingredient Quality & BioavailabilityA+ Dose, Safety & Label TransparencyA+ Value

Sodium ascorbate provides a buffered, stomach-friendly form at a well-targeted dose. The capsule states its sodium contribution clearly and costs very little per gram of vitamin C. People on strict sodium restrictions should account for the 95 mg contributed by each serving.

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Loading alternative details
89 Performance

Pure Buffered Calcium Ascorbate

NOW
A more performance-focused option combines 890 mg of vitamin C as Calcium Ascorbate with 100 mg of Calcium. Compared with the original's 750 mg of vitamin C as Sodium Ascorbate, the larger disclosed amount may better fit users seeking higher-potency vitamin C.
88 Performance

Buffered Gold C

California Gold Nutrition
A more performance-focused option combines 1,000 mg of vitamin C as Sodium Ascorbate with a focused single-nutrient formula. Compared with the original's 750 mg of vitamin C as Sodium Ascorbate, the larger disclosed amount may better fit users seeking higher-potency vitamin C.
85 Performance

Ester-C Plus 1000 mg Vitamin C

Solgar
A more performance-focused option combines 1,000 mg of vitamin C as Ester-C with 108 mg of Calcium and 200 mg of Citrus Bioflavonoids Complex. Compared with the original's 750 mg of vitamin C as Sodium Ascorbate, the larger disclosed amount may better fit users seeking higher-potency vitamin C.
87 Budget

Pure Buffered Magnesium Ascorbate

NOW
The lower serving cost still provides 820 mg of vitamin C as Magnesium Ascorbate with 60 mg of Magnesium. Compared with the original's 750 mg of vitamin C as Sodium Ascorbate, the larger disclosed amount may better fit users seeking higher-potency vitamin C.
84 Budget

Ester-C 500 mg With Citrus Bioflavoinds

American Health
The lower serving cost still provides 1,000 mg of vitamin C as Ester-C Calcium Ascorbate with 110 mg of Calcium and 400 mg of Citrus Bioflavonoids Complex. Compared with the original's 750 mg of vitamin C as Sodium Ascorbate, the larger disclosed amount may better fit users seeking higher-potency vitamin C.
88 Budget

Sodium Ascorbate

NutriBiotic Immunity
The lower serving cost still provides 1,100 mg of vitamin C as Sodium Ascorbate with a focused single-nutrient formula. Compared with the original's 750 mg of vitamin C as Sodium Ascorbate, the larger disclosed amount may better fit users seeking higher-potency vitamin C.
85 Value

C-500 With Rose Hips

NOW
The favorable serving cost pairs 500 mg of vitamin C as Ascorbic Acid with 40 mg of Rose Hips powder. Compared with the original's 750 mg of vitamin C as Sodium Ascorbate, the smaller amount favors moderate daily use but provides less vitamin C per serving.
87 Value

100% Pure Vitamin C Powder

Swanson Premium Brand
The favorable serving cost pairs 1,000 mg of vitamin C as Ascorbic Acid with a focused single-nutrient formula. Compared with the original's 750 mg of vitamin C as Sodium Ascorbate, the larger disclosed amount may better fit users seeking higher-potency vitamin C.
87 Value

C 500 mg

Mason Natural
The favorable serving cost pairs 500 mg of vitamin C as Ascorbic Acid with a focused single-nutrient formula. Compared with the original's 750 mg of vitamin C as Sodium Ascorbate, the smaller amount favors moderate daily use but provides less vitamin C per serving.
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Sources

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

  1. Vitamin C intake and multiple health outcomes: an umbrella review of systematic reviews and meta-analyses.
    Xu K; Peng R; Zou Y; Jiang X; Sun Q; Song C · International journal of food sciences and nutrition · 2022
    Meta-analysis76 studies pooledGeneral Health forVitamin C
  2. 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 participantsGeneral Health forVitamin C
  3. Mortality in randomized trials of antioxidant supplements for primary and secondary prevention: systematic review and meta-analysis.
    Bjelakovic G; Nikolova D; Gluud LL; Simonetti RG; Gluud C · JAMA · 2007
    Meta-analysis232,606 participants68 studies pooledGeneral Health forVitamin C
  4. 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
  5. Effect of Vitamin C Supplements on Respiratory Tract Infections: A Systematic Review and Meta-Analysis.
    Keya TA; Leela A; Fernandez K; Habib N; Rashid M · Current reviews in clinical and experimental pharmacology · 2022
    Meta-analysis10 studies pooledImmunity forVitamin C
  6. Dietary nutrient intakes and skin-aging appearance among middle-aged American women.
    Cosgrove MC; Franco OH; Granger SP; Murray PG; Mayes AE · The American journal of clinical nutrition · 2007
    Cross-sectional study4,025 participantsSkin Health forVitamin C
  7. 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 participantsAnti-Inflammatory Support forVitamin C
  8. 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 pooledAnti-Inflammatory Support forVitamin C
  9. 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 pooledAnti-Inflammatory Support forVitamin C
  10. 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 pooledAnti-Inflammatory Support forVitamin C
  11. 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 participantsAnti-Inflammatory Support forVitamin C
  12. 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 pooledGeneral Health forVitamin C
  13. 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 / consensusGeneral Health forVitamin C
  14. 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 participantsGeneral Health forVitamin C
  15. 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 participantsGeneral Health forVitamin C
  16. 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
  17. 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
  18. 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
  19. 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
  20. Evaluation of the anti-wrinkle effect of an ascorbic acid-loaded dissolving microneedle patch via a double-blind, placebo-controlled clinical study.
    Lee C; Yang H; Kim S; Kim M; Kang H; Kim N; An S; Koh J; Jung H · International journal of cosmetic science · 2017
    Randomized trial23 participantsSkin Health forVitamin C
  21. Comparative Study on the Outcome of Periorbital Wrinkles Treated with Laser-Assisted Delivery of Vitamin C or Vitamin C Plus Growth Factors: A Randomized, Double-blind, Clinical Trial.
    Machado BHB; Frame J; Zhang J; Najlah M · Aesthetic plastic surgery · 2021
    Randomized trial149 participantsSkin Health forVitamin C
  22. Randomized trial of topical ascorbic acid in DMSO versus imiquimod for the treatment of basal cell carcinoma.
    Burke B; Bailie JE · Biomedicine & pharmacotherapy = Biomedecine & pharmacotherapie · 2022
    Randomized trial25 participantsSkin Health forVitamin C
  23. Vitamin C improves healing of foot ulcers: a randomised, double-blind, placebo-controlled trial.
    Gunton JE; Girgis CM; Lau T; Vicaretti M; Begg L; Flood V · The British journal of nutrition · 2022
    Randomized trial16 participantsSkin Health forVitamin C
  24. 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 participantsVision Support forVitamin C
  25. 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 studyVision Support forVitamin C
  26. Nutritional modulation of cataract.
    Weikel KA; Garber C; Baburins A; Taylor A · Nutrition reviews · 2014
    Narrative reviewVision Support forVitamin C
  27. 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 participantsVision Support forVitamin C
  28. 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 participantsVision Support forVitamin C