Ester-C Plus 1000 mg Vitamin C

Ester-C Plus 1000 mg Vitamin C

Solgar4.6 (303 ratings)
Format:Tablet Quantity: 90 Tablet(s) · 90 servings
Goals
$14.29 $0.15 per serving

Product analysis

57 out of 100

Ester-C Plus pairs a named vitamin C form with calcium and several supporting ingredients. Clear amounts and favorable vitamin C value are useful strengths, though most supporting forms are unspecified.

AI assessment of the formula, label and price. How scoring works

Nutrient Quality30

The supplied form-quality assessment is incomplete; the label details are more useful than the fallback result.

Ingredient Transparency72

Amounts and forms are not equally transparent, with omissions in the captured label.

Value For Money61

The assessed ingredients suggest mixed value for the serving price.

Customer Satisfaction73

Customer feedback is generally positive, with the number of ratings providing context for that summary.

Product Focus70

The combination covers several actives; its fit depends on the goals evaluated in the supplied assessment.

Format
Tablet
Container
90 Tablet(s)
Per serving
$0.15
Customer rating
4.6 · 303 ratings
Report analysis

Goals

Immunity
Impact
Highest effect
B Ingredient FitC PathwaysA+ EvidenceA+ Formulation Logic
Vitamin C · 1000 mg
Study evidence
Vitamin C Supportive 53 studies
Everyday Health
Impact
High effect
C+ Ingredient FitD+ PathwaysB- EvidenceA+ Formulation Logic
Vitamin C · 1000 mg
Study evidence
Vitamin C Supportive 56 studies
Skin Health
Impact
Moderate effect
C+ Ingredient FitF PathwaysA+ EvidenceA+ Formulation Logic
Vitamin C · 1000 mg
Study evidence
Vitamin C Supportive 53 studies
Impact
High effect
C+ Ingredient FitD+ PathwaysA- EvidenceA+ Formulation Logic
Vitamin C · 1000 mg
Study evidence
Rutin Supportive 6 studies
Vitamin C Supportive 50 studies
Impact
High effect
C+ Ingredient FitD PathwaysC+ EvidenceA+ Formulation Logic
Vitamin C · 1000 mg
Study evidence
Rutin Not classified 1 study
Vitamin C Disputed 24 studies

Ingredients

IngredientAmount per servingScore
Calories
5 Calorie(s)
Total Carbohydrates
1 Gram(s)
Vitamin C (Ester-C Calcium Ascorbate)
1000 mg 92
Calcium (Ester-C Calcium Ascorbate)
100 mg
Citrus Bioflavonoid Complex
200 mg
Acerola extract
25 mg 20
Rose Hips
25 mg
Rutin
25 mg 83
Gluten Free Adults 18–50 Vegan Kosher Dairy Free Sugar Free Halal Vegetarian
Report overview
A- Active Ingredient Quality & BioavailabilityA Dose, Safety & Label TransparencyA+ Value
Each serving provides 1000 mg of vitamin C as Calcium Ascorbate, at a low cost based on the full serving price. The vitamin C amount is clearly stated.
How this ingredient is rated

Active Ingredient Quality & Bioavailability90

It uses Calcium Ascorbate (Ester-C). It is described as non-acidic.
Vitamin C Chemical Form & Delivery System
It uses Calcium Ascorbate (Ester-C).
Gastric Comfort & pH Balance
It is described as non-acidic.

Dose, Safety & Label Transparency91

The serving provides 1000 mg of vitamin C. The Other Ingredients include standard excipients.
Optimal Dosage Targeting
Each serving provides 1000 mg of vitamin C.
Purity & Excipient Quality
The Other Ingredients include standard excipients.
Mineral & Source Transparency
The vitamin C amount and 100 mg of calcium are disclosed.

Value100

The cost based on the full serving price is low for the vitamin C supplied; other ingredients may contribute to that price.
Price per Gram of Vitamin C
The cost based on the full serving price is low for the vitamin C supplied; other ingredients may contribute to that price.
Rutin · 25 mg OverallScore83
A+ Composition And Label DisclosureD+ Commercial Price And Usability
The selected serving declares 25 mg of rutin. The estimated whole-product cost per 100 mg of declared rutin preparation is moderate. The specific form is not available.
How this ingredient is rated

Composition and Label Disclosure

No separate composition detail was assessed here.

Composition and Label Disclosure100

The selected serving declares 25 mg of rutin.
Declared Active Rutin Amount
The selected serving declares 25 mg of rutin.

Commercial Price and Usability50

The estimated whole-product cost per 100 mg of declared rutin preparation is moderate.
Whole-Product Cost per 100 mg Declared Rutin Preparation
The estimated whole-product cost per 100 mg of declared rutin preparation is moderate.
Acerola · 25 mg OverallScore20
F Composition And Label DisclosureF Composition And Label Disclosure
The serving lists 25 mg of acerola. The extract ratio and vitamin C yield are not specified. The species and source-associated plant part are unclear.
How this ingredient is rated

Composition and Label Disclosure20

The extract ratio and vitamin C yield are not specified.
Marker and Preparation Disclosure
The extract ratio and vitamin C yield are not specified.

Composition and Label Disclosure20

The species and source-associated plant part are unclear.
Acerola Botanical Identity Disclosure
The species and source-associated plant part are unclear.

Commercial Price and Usability

A price comparison is not included.
Report alternatives

Sources

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

  1. 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 pooledEveryday Health forVitamin C
  2. 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 / consensusEveryday Health forVitamin C
  3. 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 participantsEveryday Health forVitamin C
  4. 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 participantsEveryday Health forVitamin C
  5. 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 participantsEveryday Health forVitamin C
  6. A randomized, double-masked study on the treatment of retinal vein occlusion with troxerutin
    Glacet-Bernard A, Coscas G, Chabanel A, Zourdani A, Lelong F, Samama MM · American Journal of Ophthalmology · 1994
    Randomized trial53 participantsEye Health forRutin
  7. 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 participantsEye Health forVitamin C
  8. 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 studyEye Health forVitamin C
  9. Nutritional modulation of cataract.
    Weikel KA; Garber C; Baburins A; Taylor A · Nutrition reviews · 2014
    Narrative reviewEye Health forVitamin C
  10. 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 participantsEye Health forVitamin C
  11. 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 participantsEye Health forVitamin C
  12. 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
  13. 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
  14. 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
  15. 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
  16. 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
  17. The effects of rutin flavonoid supplement on glycemic status, lipid profile, atherogenic index of plasma, brain-derived neurotrophic factor (BDNF), some serum inflammatory, and oxidative stress factors in patients with type 2 diabetes mellitus: A double-blind, placebo-controlled trial.
    Bazyar H; Moradi L; Zaman F; Zare Javid A · Phytotherapy research : PTR · 2023
    Randomized trial50 participantsInflammation forRutin
  18. Rutin ameliorates inflammation and improves metabolic function: A comprehensive analysis of scientific literature.
    Muvhulawa N; Dludla PV; Ziqubu K; Mthembu SXH; Mthiyane F; Nkambule BB; Mazibuko-Mbeje SE · Pharmacological research · 2022
    Systematic reviewInflammation forRutin
  19. Rutin-loaded chitosan microspheres: Characterization and evaluation of the anti-inflammatory activity.
    Cosco D; Failla P; Costa N; Pullano S; Fiorillo A; Mollace V; Fresta M; Paolino D · Carbohydrate polymers · 2018
    OtherInflammation forRutin
  20. Oral enzyme combination therapy reduces systemic inflammation, urinary CTXII and pain in knee osteoarthritis: a proof-of-mechanism, randomised, crossover, double-blind, placebo-controlled trial.
    Henrotin Y; Pap T; Lieten S; Badot V; Dubuc JE; Urbin-Choffray D; von Eynatten M; Johansen OE; Rau S; Brabants K · RMD open · 2025
    Randomized trial45 participantsInflammation forRutin