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Sodium Ascorbate Capsules

NutriBiotic Immunity
4.9
★ ★ ★ ★ ★
(22265 ratings)
Vitamin C 850 mg
Sodium 100 mg
Product Image
Score88
A clear, convenient buffered vitamin C capsule with good value and minimal formula complexity.
How scoring works
Quantity:100 Capsule(s) • (100 servings)
Goals:
General Health
Anti-Inflammatory Support
Immunity
Vision Support
Skin Health

Score 88

A clear, convenient buffered vitamin C capsule with good value and minimal formula complexity.
How scoring works

Also available as

1 option
250 servings Sodium 100 mg, C 850 mg • 250 Capsule(s) • 250 servings $26.24 ($0.10 per serving)
$11.99($0.11 per serving)
Pure Formulas
$ 11.99
iHerb
$ 11.99
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Analysis

Each serving supplies 850 mg of vitamin C as sodium ascorbate, a buffered form that may be easier on sensitive stomachs. The paired 100 mg sodium amount is disclosed clearly.

The capsule avoids proprietary blends and unnecessary supporting ingredients, making the formula easy to judge. Its focused design supports vitamin C intake but does not provide the breadth of a multinutrient product.

Capsules offer convenient, consistent dosing and good serving value. The fixed amount gives less flexibility than powder, especially for people who prefer smaller divided servings.

Who is it for
  • Adults wanting buffered vitamin C capsules
  • People who dislike acidic powders
  • Users seeking a simple daily formula
Best for
  • Convenient vitamin C dosing
  • Antioxidant support
  • Sensitive stomachs

Pros

  • Fully buffered sodium ascorbate
  • Clear vitamin C and sodium amounts
  • Simple capsule format

Cons

  • Fixed serving is less flexible than powder
  • Single-nutrient coverage
  • Adds sodium

Warnings

  • The 100 mg sodium amount may matter on strict sodium restriction
  • The substantial vitamin C amount may cause digestive discomfort
  • People prone to oxalate kidney stones should seek advice before long-term high-dose use

Nutrient quality

92 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

89 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.

.

Value for money

94 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

General Health
General Health
Impact
Highest effect
A- Goal FitA Strength of SupportC+ CoverageA+ Formula Quality
Vitamin C · 850 mg

Buffered sodium ascorbate provides a useful vitamin C amount with less acidity than plain ascorbic acid. Exact disclosure of both vitamin C and sodium keeps the simple capsule easy to assess.

The formula supports a meaningful but narrow set of antioxidant, collagen, and immune functions. People limiting sodium should include the 100 mg contribution when considering their daily intake.

Study evidence
Vitamin C Supportive 56 studies
Anti-Inflammatory Support
Anti-Inflammatory Support
Impact
Highest effect
B Goal FitA+ Strength of SupportC CoverageA+ Formula Quality
Vitamin C · 850 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 meaningful sodium amount, which people following a strict sodium restriction should include in their daily total.

Study evidence
Vitamin C Supportive 50 studies
Immunity
Immunity
Impact
Highest effect
B+ Goal FitA- Strength of SupportD+ CoverageA+ Formula Quality
Vitamin C · 850 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 · 850 mg

850 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 100 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 · 850 mg

850 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)
 850 mg
Sodium (Sodium Ascorbate)
 100 mg
Gluten Free Adults 18–50 Vegan Dairy Free Vegetarian
Report overview
Vitamin C (Sodium Ascorbate) · 850 mg OverallScore89
B+ Active Ingredient Quality & BioavailabilityA+ Dose, Safety & Label TransparencyB+ Value

Sodium ascorbate provides a fully buffered vitamin C form that may be easier on sensitive stomachs. The vitamin C amount falls in the preferred range, and the sodium contribution is clearly disclosed. Value remains good, although people limiting sodium should account for the sodium in each capsule.

View ingredientView products
Sodium (Sodium Ascorbate) · 100 mg OverallScore64
D Active Ingredient Quality & BioavailabilityC Dose, Safety & Label TransparencyA+ Value

Sodium ascorbate provides only a small sodium amount and is designed mainly to deliver vitamin C. No supporting electrolytes or buffering minerals make it suitable for broader hydration. The very low serving cost is favorable, but athletic replenishment value is weak.

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 capsule, 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 capsule, 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 capsule.
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 capsule 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. 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
  2. Vitamin C supplementation in kidney failure: effect on uraemic symptoms.
    Singer RF · Nephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association · 2011
    Randomized trial99 participantsGeneral Health forVitamin C
  3. Serum vitamin C and spinal pain: a nationwide study.
    Dionne CE; Laurin D; Desrosiers T; Abdous B; Le Sage N; Frenette J; Mondor M; Pelletier S · Pain · 2017
    Cross-sectional study4,742 participantsGeneral Health forVitamin C
  4. 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
  5. Vitamin C for the management of COVID-19: a systematic review and meta-analysis of randomized controlled trials.
    Abid H; Mushtaq I; Munir ABI; Shakil J; Vinjamuri S; Tadasare N; Kiran F; Muhammad Wali Mirza A; Fatima Khidri F; Shahid A; Ayyan M; Ehsan M; Cheema HA; Alsubari AMA; Sahra S; Siddiqi NI · Annals of medicine and surgery (2012) · 2026
    Meta-analysis9 studies pooledGeneral Health forVitamin C
  6. Evaluating the effects of chlorhexidine and vitamin c mouthwash on oral health in non-surgical periodontal therapy: a randomized controlled clinical trial.
    Ozmeric N; Enver A; Isler SC; Gökmenoğlu C; Topaloğlu M; Selamet H; Altun G; Aykol Sayar S · Scientific reports · 2025
    Randomized trial60 participantsGeneral Health forVitamin C
  7. 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
  8. Ascorbate for Organ Dysfunction in Critically Ill Patients With Sepsis: The Phase 2b ASTER Trial.
    Files DC; Matthay MA; Ware LB; Brower RG; Aggarwal NR; Brown SM; Chang SY; Douglas IS; Duggal A; Gibbs KW; Fields S; Foulkes AS; Ginde A; Goodwin A; Harris ES; Hendey GW; Hibbert K; Hite RD; Hough CL; Huang W; Khan A; Lai P; Liu KD; Miller C; Moskowitz A; Riker R; Robinson BRH; Self WH; Tidswell MA; Yealy DM; Thompson BT; Fowler AA · CHEST critical care · 2026
    Randomized trial79 participantsGeneral Health forVitamin C
  9. 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
  10. Supplemental Vitamins and Minerals for Cardiovascular Disease Prevention and Treatment: JACC Focus Seminar.
    Jenkins DJA; Spence JD; Giovannucci EL; Kim YI; Josse RG; Vieth R; Sahye-Pudaruth S; Paquette M; Patel D; Blanco Mejia S; Viguiliouk E; Nishi SK; Kavanagh M; Tsirakis T; Kendall CWC; Pichika SC; Sievenpiper JL · Journal of the American College of Cardiology · 2021
    Meta-analysisGeneral Health forVitamin C
  11. 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
  12. 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
  13. 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
  14. 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
  15. 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
  16. 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
  17. 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
  18. 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
  19. 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
  20. 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
  21. 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
  22. 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
  23. 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
  24. 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
  25. 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
  26. 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
  27. 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
  28. 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
  29. 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
  30. 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
  31. Nutritional modulation of cataract.
    Weikel KA; Garber C; Baburins A; Taylor A · Nutrition reviews · 2014
    Narrative reviewVision Support forVitamin C
  32. 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
  33. 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