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C 500 mg

4.7
★ ★ ★ ★ ★
(281 ratings)
Vitamin C 500 mg
Product Image
Score82
A dependable, low-cost 500 mg vitamin C tablet. Its value is stronger than its formulation quality.
How scoring works
Tablet
Quantity:130 Tablet(s) • (130 servings)
Goals:
General Health
Immunity
Skin Health
Anti-Inflammatory Support

Score 82

A dependable, low-cost 500 mg vitamin C tablet. Its value is stronger than its formulation quality.
How scoring works

Also available as

2 options
250 servings C 500 mg • 250 Tablet(s) • 250 servings $11.71 ($0.04 per serving) 1000mg • 60 Tablet(s) servings C 1000 mg • 60 Tablet(s) • 60 servings $13.98 ($0.23 per serving)
$11.20($0.08 per serving)
iHerb
$ 11.20
Walmart
$ 16.00
Vitacost
$ 11.33
Vitacost
$ 11.33
Report prices

Analysis

The moderate serving provides useful vitamin C for antioxidant defense, immune function, and collagen production. It offers a more flexible amount than many 1,000 mg products.

Plain ascorbic acid is fully disclosed but can be acidic for sensitive users. No buffering agent, sustained release, or enhanced delivery system is listed.

The large tablet supply and favorable cost make it practical for long-term use. Shoppers seeking formulation sophistication or detailed excipient disclosure may want another option.

Who is it for
  • Adults wanting a moderate vitamin C serving
  • Long-term value shoppers
  • People comfortable with standard tablets
Best for
  • Basic daily vitamin C
  • Foundational antioxidant nutrition
  • Budget-friendly routines

Pros

  • Practical 500 mg amount
  • Simple active profile
  • Large supply
  • Favorable value

Cons

  • Unbuffered form
  • No enhanced delivery
  • No complementary actives

Warnings

  • Ascorbic acid may cause reflux or stomach discomfort
  • Taking several tablets or stacking products can cause diarrhea
  • People with a calcium oxalate stone history should discuss regular supplementation with a clinician

Nutrient quality

83 Highest impact

Plain ascorbic acid is established but not buffered or delivery-enhanced. The useful amount fits focused daily supplementation without active clutter.

Ingredient transparency

81 Highest impact

The active name and amount are clearly shown. Daily directions and a complete inactive-ingredient list are not supplied.

Customer satisfaction

69 High impact

The aggregate rating is very strong and supported by a moderate number of ratings. No review excerpts are supplied, so repeated complaints and purpose-specific experiences cannot be assessed.

Value for money

92 Highest impact

The practical serving and low cost provide good everyday value. The formula is basic, but no unnecessary active extras dilute the purchase.

Report analysis

Goals

General Health
General Health
Impact
Highest effect
A- Goal FitA- Strength of SupportC CoverageA Formula Quality
Vitamin C · 500 mg

Vitamin C offers established antioxidant and collagen-supporting nutrition at a clearly stated amount. The straightforward tablet can help fill a specific dietary gap.

Plain ascorbic acid lacks buffering or specialized delivery and covers only one wellness pathway. The concise active profile is easy to assess and avoids distracting blends.

Study evidence
Vitamin C Supportive 56 studies
Immunity
Immunity
Impact
Highest effect
A- Goal FitA- Strength of SupportD+ CoverageA+ Formula Quality
Vitamin C · 500 mg

Vitamin C directly supports antioxidant defenses and normal immune-cell function with a strong established evidence base. The focused single nutrient does not address vitamin D, zinc, mucosal support, or other immune pathways.

The amount meets the key target for immune-focused vitamin C supplementation. Plain ascorbic acid is fully disclosed but offers no buffering or enhanced-delivery feature.

Study evidence
Vitamin C Supportive 53 studies
Skin Health
Skin Health
Impact
High effect
B Goal FitB Strength of SupportD+ CoverageA Formula Quality
Vitamin C · 500 mg

Vitamin C supports collagen synthesis and antioxidant defense, giving the formula a clear but narrow skin-health role. A clearly disclosed plain ascorbic acid amount is adequate for routine use.

Plain ascorbic acid offers no buffering or enhanced delivery and may bother sensitive stomachs. A single vitamin C product does not directly supply collagen peptides, barrier lipids, or dedicated hydration actives.

Study evidence
Vitamin C Supportive 53 studies
Anti-Inflammatory Support
Cellular Defense
Anti-Inflammatory Support
Impact
High effect
C+ Goal FitB- Strength of SupportD+ CoverageA Formula Quality
Vitamin C · 500 mg

Vitamin C provides a meaningful antioxidant contribution that may help limit oxidative stress linked with inflammatory signaling. The 500 mg amount is practical, clearly disclosed, and supported by established human nutrition evidence.

A single-ingredient formula delivers useful antioxidant depth without unnecessary additions. Plain unbuffered ascorbic acid offers no enhanced delivery and provides little direct coverage of inflammatory enzymes.

Study evidence
Vitamin C Supportive 50 studies

Ingredients

IngredientAmount per serving
Vitamin C (Ascorbic Acid)
 500 mg
Gluten Free Adults 18–50
Report overview
Vitamin C (Ascorbic Acid) · 500 mg OverallScore68
F Active Ingredient Quality & BioavailabilityA+ Dose, Safety & Label TransparencyB+ Value

A target-range dose and simple label make the formula easy to assess. Plain ascorbic acid lacks enhanced delivery and may be less comfortable for sensitive stomachs. Cost efficiency is favorable for users who are satisfied with a standard form.

View ingredientView products
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 500 mg of vitamin C as Ascorbic Acid, 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 500 mg of vitamin C as Ascorbic Acid, 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 500 mg of vitamin C as Ascorbic Acid, 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 500 mg of vitamin C as Ascorbic Acid, the larger disclosed amount may better fit users seeking higher-potency vitamin C.
89 Budget

C-500 Calcium Ascorbate-C

NOW
The lower serving cost still provides 500 mg of vitamin C as Calcium Ascorbate with 55 mg of Calcium and 10 mg of Citrus Bioflavonoid Complex. The amount matches the original, while Calcium Ascorbate replaces Ascorbic Acid and gives users a different disclosed form.
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 500 mg of vitamin C as Ascorbic Acid, 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. The vitamin C amount is similar to the original, while the added ingredients and label details determine the more useful fit.
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 500 mg of vitamin C as Ascorbic Acid, 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. The vitamin C amount is similar to the original, while the added ingredients and label details determine the more useful fit.
Report alternatives

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