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C 1000 mg + Rose Hips & Bioflavonoids

Mason Natural
4.7
★ ★ ★ ★ ★
(2572 ratings)
Vitamin C 1000 mg
Product Image
Score64
Strong vitamin C potency is undermined by a large opaque supporting base. The product is easy to judge only by its main active.
How scoring works
Quantity:90 Tablet(s) • (90 servings)
Goals:
Immunity
General Health
Skin Health

Score 64

Strong vitamin C potency is undermined by a large opaque supporting base. The product is easy to judge only by its main active.
How scoring works

Also available as

1 option
500mg • 100 Tablet(s) servings C 500 mg • 100 Tablet(s) • 100 servings $4.69 ($0.04 per serving)
$9.54($0.10 per serving)
iHerb
$ 9.54
iHerb
$ 9.54
Report prices

Analysis

The high ascorbic acid amount supports antioxidant defenses, collagen synthesis, and normal immune function. The primary nutrient is fully stated and reaches a substantial level.

The large supporting base is not broken down into named ingredients and individual amounts. As a result, the contribution of rose hips and bioflavonoids cannot be verified from the supplied label.

Unbuffered delivery may be hard on sensitive stomachs, and the formula does not clearly broaden support beyond vitamin C. It fits users who want a high-potency tablet and accept uncertainty around the additional base.

Who is it for
  • Adults seeking high-potency vitamin C
  • Value-focused tablet users
  • People comfortable with incomplete blend detail
Best for
  • Focused antioxidant support
  • Collagen-cofactor intake
  • Foundational immune nutrition

Pros

  • Substantial disclosed vitamin C amount
  • Good cost efficiency
  • Main active is easy to identify

Cons

  • Large supporting base is not itemized
  • Rose hips and bioflavonoid amounts are unknown
  • Unbuffered delivery may reduce comfort

Warnings

  • The high serving may cause stomach upset or loose stools
  • The unspecified supporting base may not suit users who need full allergen or ingredient visibility
  • People with calcium oxalate kidney-stone risk or iron-overload conditions should seek guidance before sustained high-dose use

Nutrient quality

73 High impact

The full-gram vitamin C amount is substantial. The large vaguely described base raises a strong padding concern.

Ingredient transparency

49 Lower impact

Tablet and serving counts make the basic serving structure clear. The unnamed supporting base hides the quantities of its components.

Customer satisfaction

71 High impact

Feedback volume is substantial enough to make the aggregate rating more stable. No complaint text is supplied, so repetitive negative themes cannot be assessed.

Value for money

67 High impact

The substantial vitamin C serving has a low relative cost. A large unidentified base appears to inflate the formula without assessable benefit.

Report analysis

Goals

Immunity
Immunity
Impact
High effect
A Goal FitB+ Strength of SupportC CoverageB- Formula Quality
Vitamin C · 1000 mg

A substantial vitamin C amount directly supports immune cell activity, antioxidant defense, and barrier integrity. Rose hips and bioflavonoids may add supporting plant compounds, but their individual amounts are not supplied.

Generic ascorbic acid is well dosed yet unbuffered for sensitive stomachs. The large unspecified base weakens transparency and makes its added immune value difficult to judge.

Study evidence
Vitamin C Supportive 53 studies
General Health
General Health
Impact
High effect
A- Goal FitB Strength of SupportC CoverageC Formula Quality
Vitamin C · 1000 mg

Ascorbic acid provides a substantial amount of an essential antioxidant needed for collagen production and normal immune function. The simple one-tablet format gives clear information for the main active ingredient.

A large additional base is not broken down into named ingredients or amounts, which limits assessment of the rose hips and bioflavonoid contribution. The concentrated vitamin C amount may cause stomach upset or diarrhea and may be a poor fit for people prone to calcium oxalate kidney stones.

Study evidence
Vitamin C Supportive 56 studies
Skin Health
Skin Health
Impact
High effect
B+ Goal FitB+ Strength of SupportC- CoverageD+ Formula Quality
Vitamin C · 1000 mg

The 1,000 mg vitamin C amount provides substantial collagen-cofactor and antioxidant support. A large base blend is not itemized, so rose hips, bioflavonoids, and their active amounts cannot be verified.

The formula has depth in the vitamin C pathway but uncertain breadth from its hidden supporting ingredients. It does not clearly provide hydration, barrier lipids, or structural collagen.

Study evidence
Vitamin C Supportive 53 studies
Vision Support
Vision Support
Impact
Moderate effect
C Goal FitB- Strength of SupportD CoverageC Formula Quality
Vitamin C · 1000 mg

Vitamin C provides strong antioxidant support relevant to the lens and ocular tissues. Rose hips and bioflavonoids may add secondary antioxidant value but do not replace core macular nutrients.

The vitamin C amount is clear, while the large supporting base hides individual ingredients and doses. The product remains narrow and incompletely transparent.

Study evidence
Vitamin C Disputed 24 studies
Anti-Inflammatory Support
Anti-Inflammatory Support
Impact
Moderate effect
C Goal FitC+ Strength of SupportD+ CoverageD Formula Quality
Vitamin C · 1000 mg

High-dose vitamin C supports antioxidant control but does not directly target the major inflammatory enzymes. Human evidence supports vitamin C for oxidative stress, while its effect on systemic inflammation is less direct than omega-3s or boswellia.

The 1,000 mg vitamin C amount is ample for antioxidant support. Ascorbic acid is named, but the 640 mg rose-hip and bioflavonoid base is not broken down.

Study evidence
Vitamin C Supportive 50 studies

Ingredients

IngredientAmount per serving
Vitamin C (Ascorbic Acid)
 1000 mg
In a base that contains
640 mg
Gluten Free Adults 18–50
Report overview
Vitamin C (Ascorbic Acid) · 1000 mg OverallScore68
F Active Ingredient Quality & BioavailabilityA Dose, Safety & Label TransparencyA+ Value

The 1,000 mg serving reaches the upper end of the preferred range at very low cost. Generic ascorbic acid lacks enhanced delivery and may be harsh for sensitive stomachs. A large but vaguely described supporting base limits transparency.

View ingredientView products
Loading alternative details
89 Performance

Ester-C Plus 1000 mg Vitamin C

Solgar
<p>The ingredient profile is a stronger fit for focused vitamin C support, supplying 1000 mg of vitamin C as Ester-C with calcium and citrus bioflavonoids. Compared with the original’s Ascorbic Acid, the mineral ascorbate form may be gentler and is more clearly aligned with focused vitamin C use.</p>
89 Performance

Buffered Gold C

California Gold Nutrition
<p>The ingredient profile is a stronger fit for focused vitamin C support, supplying 1000 mg of vitamin C as Sodium Ascorbate. Compared with the original’s Ascorbic Acid, the mineral ascorbate form may be gentler and is more clearly aligned with focused vitamin C use.</p>
88 Performance

C

Swanson
<p>The ingredient profile is a stronger fit for focused vitamin C support, supplying 1000 mg of vitamin C as Calcium Ascorbate with calcium and citrus bioflavonoids. Compared with the original’s Ascorbic Acid, the mineral ascorbate form may be gentler and is more clearly aligned with focused vitamin C use.</p>
89 Budget

Pure Buffered Calcium Ascorbate

NOW
<p>A lower cost per serving makes this a practical budget alternative, while it supplies 890 mg of vitamin C as Calcium Ascorbate with calcium. The 890 mg amount is lower than the original's 1000 mg serving, so the trade-off is less vitamin C per serving. Its mineral ascorbate form may also be gentler than the original’s plain ascorbic acid.</p>
88 Budget

Sodium Ascorbate

NutriBiotic Immunity
<p>A lower cost per serving makes this a practical budget alternative, while it supplies 1100 mg of vitamin C as Sodium Ascorbate. The vitamin C amount matches or exceeds the original's 1000 mg serving. Its mineral ascorbate form may also be gentler than the original’s plain ascorbic acid.</p>
87 Budget

100% Pure Vitamin C Powder

Swanson Premium Brand
<p>A lower cost per serving makes this a practical budget alternative, while it supplies 1000 mg of vitamin C as Ascorbic Acid. The vitamin C amount matches or exceeds the original's 1000 mg serving.</p>
93 Value

Pure Buffered Magnesium Ascorbate

NOW
<p>Strong serving value is paired with 820 mg of vitamin C as Magnesium Ascorbate with magnesium. It uses a lower vitamin C amount than the original and adds a potentially gentler mineral ascorbate form, balancing cost-effectiveness with a useful ingredient profile.</p>
93 Value

Sodium Ascorbate Capsules

NutriBiotic Immunity
<p>Strong serving value is paired with 850 mg of vitamin C as Sodium Ascorbate. It uses a lower vitamin C amount than the original and adds a potentially gentler mineral ascorbate form, balancing cost-effectiveness with a useful ingredient profile.</p>
92 Value

Ester-C 500 mg With Citrus Bioflavoinds

American Health
<p>Strong serving value is paired with 1000 mg of vitamin C as Ester-C Calcium Ascorbate with calcium and citrus bioflavonoids. It matches or exceeds the original’s vitamin C amount and adds a potentially gentler mineral ascorbate form, balancing cost-effectiveness with a useful ingredient profile.</p>
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
  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