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Sustained Release Vitamin C with PureWay-C 500 mg

4.7
★ ★ ★ ★ ★
(2977 ratings)
Vitamin C 500 mg
Product Image
Score83
A strong 500 mg sustained-release formula with PureWay-C and bioflavonoids. Its advanced delivery and good value outweigh the unclear form split.
How scoring works
Tablet
Quantity:60 Tablet(s) • (60 servings)
Goals:
General Health
Immunity
Anti-Inflammatory Support
Skin Health

Score 83

A strong 500 mg sustained-release formula with PureWay-C and bioflavonoids. Its advanced delivery and good value outweigh the unclear form split.
How scoring works
$9.99($0.16 per serving)
iHerb
$ 9.99
Vitacost
$ 10.65
Pure Formulas
$ 16.05
Report prices

Analysis

The 500 mg serving uses PureWay-C and ascorbyl palmitate in a sustained-release tablet. These features distinguish it from plain ascorbic acid and may support steadier delivery across the day.

A 50 mg citrus bioflavonoid complex complements the vitamin C without overwhelming the formula. The supplied record does not clarify how the total vitamin C is allocated among the named forms.

The serving remains moderate and the cost is favorable for a branded delivery system. It suits users who want more formulation detail without moving to an excessive dose.

Who is it for
  • Users seeking sustained vitamin C delivery
  • Adults wanting a premium moderate-dose formula
  • People who value bioflavonoids
Best for
  • Daily premium vitamin C
  • Steadier-release supplementation
  • Antioxidant and collagen support

Pros

  • Sustained-release design
  • PureWay-C delivery system
  • Moderate 500 mg serving
  • Includes citrus bioflavonoids
  • Good value for a premium form

Cons

  • Vitamin C allocation among forms is unclear
  • Tablet format may be difficult for some users
  • Citrus-derived ingredients may not suit everyone

Warnings

  • Users sensitive to citrus-derived ingredients should verify tolerance
  • Sustained-release tablets should be swallowed whole unless the package explicitly allows splitting
  • Even a moderate serving can cause digestive discomfort when combined with other vitamin C supplements

Nutrient quality

93 Highest impact

PureWay-C and sustained release provide a more advanced delivery approach than plain ascorbic acid. The practical vitamin C amount is supported by bioflavonoids without obvious overdosing.

Ingredient transparency

74 High impact

The named forms are specific, but duplicate vitamin C entries do not clearly show their relationship. Daily directions and a complete inactive-ingredient list are not supplied.

Customer satisfaction

71 High impact

The aggregate rating is very strong and backed by substantial volume. No review excerpts are supplied, so repeated complaints and purpose-specific experiences cannot be assessed.

Value for money

94 Highest impact

Advanced delivery features are offered at a favorable serving cost. The focused formula avoids paying for weak extras and competes well with premium alternatives.

Report analysis

Goals

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

Vitamin C offers well-established antioxidant, immune, and collagen-synthesis support for general health. The sustained-release design provides more depth than a basic single-form vitamin C tablet.

PureWay-C and ascorbyl palmitate are identified alongside a useful target-range amount. The label does not clearly divide the stated vitamin C among the forms, but the compact formula remains coherent.

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

A target-range vitamin C serving uses a branded lipid-supported system and sustained release for a meaningful delivery advantage. Vitamin C directly supports immune-cell activity and antioxidant protection.

The formula covers one primary pathway and does not add zinc, vitamin D, or barrier-focused nutrients. It is a strong focused option for vitamin C rather than a complete immune blend.

Study evidence
Vitamin C Supportive 53 studies
Anti-Inflammatory Support
Cellular Defense
Anti-Inflammatory Support
Impact
High effect
B- Goal FitA Strength of SupportC+ 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 PureWay-C serving uses sustained release and lipid metabolites to improve delivery over plain ascorbic acid.

Citrus bioflavonoids add a complementary antioxidant component without making the formula needlessly broad. Direct coverage of inflammatory enzymes and immune signaling remains limited despite the strong delivery quality.

Study evidence
Vitamin C Supportive 50 studies
Skin Health
Skin Health
Impact
High effect
B- Goal FitA- Strength of SupportC- CoverageA- Formula Quality
Vitamin C · 500 mg

Vitamin C directly supports collagen synthesis and antioxidant defense in a focused daily formula. Vitamin C has established mechanistic and nutritional evidence for collagen formation, though oral supplementation alone is not a complete skin intervention.

The product covers collagen-cofactor and antioxidant pathways but not direct structure, hydration, or barrier lipids. Vitamin C and citrus bioflavonoids form a simple, complementary antioxidant combination.

Study evidence
Vitamin C Supportive 53 studies
Vision Support
Macular and Blue Light Defense
Vision Support
Impact
Moderate effect
F Goal FitB Strength of SupportF CoverageC+ Formula Quality
Vitamin C · 500 mg

Vitamin C supports ocular antioxidant defenses but does not directly supply macular pigment or retinal lipids. The meaningful amount and enhanced delivery system make it a useful vitamin C product, not a complete vision formula.

PureWay-C and sustained release provide stronger form quality than plain ascorbic acid. A single antioxidant pathway leaves lutein, zeaxanthin, zinc-copper balance, and DHA uncovered.

Study evidence
Vitamin C Disputed 24 studies

Ingredients

IngredientAmount per serving
Vitamin C (Ascorbyl Palmitate, Pureway-C)
 500 mg
Citrus Bioflavonoids Complex
50 mg
Gluten Free Adults 18–50 Vegan Vegetarian
Report overview
Vitamin C (Ascorbyl Palmitate, Pureway-C) · 500 mg OverallScore92
A- Active Ingredient Quality & BioavailabilityA Dose, Safety & Label TransparencyA+ Value

PureWay-C and sustained release give the formula a meaningful delivery advantage over ordinary ascorbic acid. The target-range serving supports efficient use, although the supplied data does not clearly divide the vitamin C among the listed forms. Cost efficiency is favorable for a branded premium system.

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 Ascorbyl Palmitate, 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 Ascorbyl Palmitate, 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 Ascorbyl Palmitate, the larger disclosed amount may better fit users seeking higher-potency vitamin C.
86 Budget

C

Swanson
The lower serving cost still provides 1,000 mg of vitamin C as Calcium Ascorbate with 120 mg of Calcium and 200 mg of Bioflavonoids. Compared with the original's 500 mg of vitamin C as Ascorbyl Palmitate, 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 500 mg of vitamin C as Ascorbyl Palmitate, the larger disclosed amount may better fit users seeking higher-potency vitamin C.
88 Budget

Sodium Ascorbate Capsules

NutriBiotic Immunity
The lower serving cost still provides 850 mg of vitamin C as Sodium Ascorbate with a focused single-nutrient formula. Compared with the original's 500 mg of vitamin C as Ascorbyl Palmitate, 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 amount matches the original, while Ascorbic Acid replaces Ascorbyl Palmitate and gives users a different disclosed form.
88 Value

Sodium Ascorbate

NutriBiotic Immunity
The favorable serving cost pairs 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 Ascorbyl Palmitate, the larger disclosed amount may better fit users seeking higher-potency vitamin C.
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 Ascorbyl Palmitate, the larger disclosed amount may better fit users seeking higher-potency vitamin C.
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