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Sodium Ascorbate

NutriBiotic Immunity
4.9
★ ★ ★ ★ ★
(89967 ratings)
Vitamin C 1100 mg
Sodium 120 mg
Product Image
Score88
A simple, economical buffered vitamin C powder for regular use, provided its sodium and measuring needs fit the user.
How scoring works
Quantity:16 Ounce(s) • (363 servings)
Goals:
Immunity
General Health
Skin Health
Anti-Inflammatory Support
Vision Support

Score 88

A simple, economical buffered vitamin C powder for regular use, provided its sodium and measuring needs fit the user.
How scoring works

Also available as

2 options
2 servings C 1100 mg, Sodium 120 mg • 2 lb(s) • 800 servings $39.74 ($0.04 per serving) 8 servings C 1100 mg, Sodium 120 mg • 8 Ounce(s) • 181 servings $11.62 ($0.06 per serving)
$19.87($0.05 per serving)
iHerb
$ 19.87
Vitacost
$ 21.87
Amazon
$ 19.87
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Analysis

The 1,100 mg vitamin C serving comes entirely from sodium ascorbate, which may be gentler than unbuffered ascorbic acid. Its 120 mg sodium contribution is also plainly listed.

No proprietary carrier or blend complicates the formula, so the active amount is easy to understand. The product remains narrowly focused and does not provide complementary minerals or vitamins.

The mid-size bulk container balances long-term value with more manageable storage than the largest option. Adjustable powder dosing is useful, but consistency depends on careful measuring.

Who is it for
  • Frequent vitamin C users
  • People seeking buffered powder
  • Adults who prefer flexible serving sizes
Best for
  • Everyday vitamin C support
  • Bulk value
  • Mixing into drinks

Pros

  • Transparent sodium ascorbate formula
  • Excellent serving value
  • Flexible powder format

Cons

  • No supporting nutrients
  • Requires measuring
  • Adds sodium

Warnings

  • The 120 mg sodium amount may matter on strict sodium restriction
  • A large vitamin C serving may upset digestion
  • People prone to oxalate kidney stones should seek advice before sustained high-dose use

Nutrient quality

88 Highest impact

The ingredient form and serving amount provide solid nutritional support. The formula remains reasonably focused without obvious excessive dosing.

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Ingredient transparency

88 Highest impact

Active amounts and ingredient names are mostly easy to assess. A complete inactive-ingredient list and full use directions are not included in the supplied facts.

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Customer satisfaction

73 High impact

The aggregate rating is very strong supported by substantial review volume. No specific feedback is supplied to confirm recurring complaints or purpose-related experiences.

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Value for money

99 Highest impact

The formula and supply provide strong practical value. Most of the cost appears directed toward the core active formula.

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Report analysis

Goals

Immunity
Immunity
Impact
Highest effect
A+ Goal FitA+ Strength of SupportC CoverageA+ Formula Quality
Vitamin C · 1100 mg

Vitamin C directly supports immune-cell function, barrier integrity, and antioxidant protection. Human evidence strongly supports vitamin C for maintaining immune function and modestly shortening some respiratory illnesses.

The buffered vitamin C amount exceeds the preferred immune-support threshold without being extreme. Sodium ascorbate is fully disclosed and stomach-friendly, though it adds sodium that matters for sodium-restricted diets.

Study evidence
Vitamin C Supportive 53 studies
General Health
General Health
Impact
Highest effect
A Goal FitA- Strength of SupportB CoverageA+ Formula Quality
Vitamin C · 1100 mg

Buffered sodium ascorbate supplies focused support for antioxidant defenses, immune function, and collagen formation. Its non-acidic mineral form may be easier on the stomach than plain ascorbic acid.

The powder is simple and transparent, but it covers only vitamin C-related pathways. Its sodium contribution may matter to people following a tightly sodium-restricted diet.

Study evidence
Vitamin C Supportive 56 studies
Skin Health
Skin Health
Impact
Highest effect
B+ Goal FitA Strength of SupportD+ CoverageA Formula Quality
Vitamin C · 1100 mg

Buffered sodium ascorbate supplies a useful vitamin C amount for collagen formation and antioxidant defense. The sodium contribution may matter for people following a sodium-restricted diet.

The single-active focus makes its strengths and limits easy to assess. Large vitamin C servings may still cause stomach upset in sensitive users.

Study evidence
Vitamin C Supportive 53 studies
Anti-Inflammatory Support
Anti-Inflammatory Support
Impact
High effect
B- Goal FitA Strength of SupportD+ CoverageA+ Formula Quality
Vitamin C · 1100 mg

Buffered vitamin C provides substantial antioxidant support that may help limit oxidative stress accompanying inflammation. Sodium ascorbate is clearly disclosed and may be gentler on the stomach than plain ascorbic acid.

The formula is narrow and does not directly target major inflammatory enzymes or provide fatty-acid support. Each serving adds sodium and a high vitamin C amount, which may matter for strict sodium restriction and may cause loose stools or stomach upset in sensitive users.

Study evidence
Vitamin C Supportive 50 studies
Vision Support
Vision Support
Impact
High effect
C+ Goal FitA- Strength of SupportD CoverageB Formula Quality
Vitamin C · 1100 mg

1,100 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 120 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

Ingredients

IngredientAmount per serving
Vitamin C (Sodium Ascorbate)
 1100 mg
Sodium (Sodium Ascorbate)
 120 mg
Gluten Free Adults 18–50 Vegan Dairy Free Vegetarian
Report overview
Vitamin C (Sodium Ascorbate) · 1100 mg OverallScore89
B+ Active Ingredient Quality & BioavailabilityA Dose, Safety & Label TransparencyA+ Value

The buffered sodium ascorbate powder offers good gastric comfort and excellent value. Its dose is modestly above the preferred range but avoids a very large single serving. People on sodium-restricted diets should count the 120 mg provided per serving.

View ingredientView products
Sodium (Sodium Ascorbate) · 120 mg OverallScore69
C- Active Ingredient Quality & BioavailabilityC+ Dose, Safety & Label TransparencyA+ Value

The 120 mg sodium serving is too low for substantial athletic sweat replacement. Sodium ascorbate is named, but it is not a preferred unrefined salt source. No potassium or magnesium is included. Cost per serving is low compared with the collection benchmark.

View ingredientView products
Loading alternative details
82 Performance

Liposomal Vitamin C 1000 mg

SunLipid
Buffered sodium ascorbate is paired with a disclosed phospholipid complex and MCT for a more developed delivery system. It is more complex than the original simple powder or capsule, and the sodium contribution still matters for restricted diets.
86 Performance

Ester-C Plus 1000 mg Vitamin C

Solgar
Buffered calcium ascorbate and 200 mg of citrus bioflavonoids provide a focused 1000 mg vitamin C option without sodium. It does not preserve the original buffered sodium ascorbate powder, but may better suit someone prioritizing buffering and a sodium-free formula.
89 Performance

Pure Buffered Calcium Ascorbate

NOW
An 890 mg calcium ascorbate serving offers full buffering, clear mineral disclosure, and no sodium contribution. It lacks the original buffered sodium ascorbate powder, while incomplete inactive-ingredient and use details remain a limitation.
85 Budget

C-500 With Rose Hips

NOW
A lower listed serving cost comes with a practical 500 mg ascorbic acid amount and a small rose-hip addition. It reduces sodium but uses unbuffered ascorbic acid, which may be less comfortable for a sensitive stomach.
83 Budget

C 500 mg

21st Century
A lower listed serving cost and a simple 500 mg ascorbic acid amount make this an economical basic option. Calcium carbonate adds little buffering, and the simpler tablet does not retain the original buffered sodium ascorbate powder.
85 Budget

Gold C Vitamin C 1000 mg

California Gold Nutrition
A lower listed serving cost preserves a substantial 1000 mg vitamin C amount in a very simple formula. Plain ascorbic acid removes the original buffered sodium ascorbate powder and may be less comfortable for sensitive users.
82 Value

Meta-C 1000 mg Tablets

NutriBiotic Immunity
It is not cheaper than the original's unusually economical serving, but it adds formulation benefits at still-favorable listed value. The 1000 mg vitamin C complex names calcium, active metabolites, and spirulina, although spirulina adds limited clarity to the core purpose.
86 Value

C

Swanson
It is not cheaper than the original's unusually economical serving, but it adds formulation benefits at still-favorable listed value. A 1000 mg calcium ascorbate amount and 200 mg of citrus bioflavonoids provide buffering without the original sodium contribution.
84 Value

Ester-C 24 Hour Immune Support 1000 mg

NatureSmart
It is not cheaper than the original's unusually economical serving, but it adds formulation benefits at still-favorable listed value. Buffered calcium ascorbate and a disclosed citrus bioflavonoid complex keep the formula focused and may improve stomach comfort.
Report alternatives

Sources

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

  1. 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
  2. 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
  3. 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
  4. 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
  5. 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
  6. 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
  7. 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
  8. 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
  9. 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
  10. 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
  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. 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
  17. 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
  18. 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
  19. 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
  20. 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
  21. 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
  22. 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
  23. Nutritional modulation of cataract.
    Weikel KA; Garber C; Baburins A; Taylor A · Nutrition reviews · 2014
    Narrative reviewVision Support forVitamin C
  24. 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
  25. 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