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C 1,000 mg

product on market Tablet or Pill Swanson Safety: 100/100
100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • 33% of ingredients have research evidence
A Label Compliance Grade

What the Evidence Says

✨ AI-generated · Qwen 3.6 · methodology

Vitamin C and bioflavonoids are supported by strong evidence for their roles in antioxidant protection and immune function. PureWay-C is a buffered form designed to enhance absorption and cellular uptake. Research indicates these ingredients are generally safe for most adults when taken at recommended dosages.

AI-generated summary based on research evidence. Not medical advice.

Label

Product Label

Label for C 1,000 mg
Open Full PDF View on NIH DSLD →
Details

Label Data

1 Tablet(s)
Serving Size
90
Servings
Other Combinations
Product Type
33%
Evidence Coverage
Ingredients

Supplement Facts — Evidence Check

Vitamin C
1000 mg (1111% DV)
PureWay-C
1111 mg
200 mg
Market median: 500.0mg (283 products) 174 studies (A:0, B:62)

Other Ingredients

Hydroxypropyl Methylcellulose Stearic Acid Microcrystalline Cellulose Magnesium Stearate Croscarmellose Sodium Pharmaceutical Glaze
Claims

Label Claims — Verification

Unverified Nutrient
Unverified All Other
Unverified Structure/Function
Info

Product Information

Directions for Use

Suggested use: as a dietary supplement, take one tablet per day with food and water.

Warnings & Precautions

Warning: for adults only. Keep out of reach of children.

Consult your healthcare provider before using this or any product if you are pregnant or nursing, taking medication or have a medical condition.

Do not use if seal is broken.

Formulation Notes

Scientifically proven-free-radical-fighting power Superior form supports nervous system, skin and immune health Boosts antioxidant activity

Vitamin C with bioflavonoids Vitamin C 1,000 mg per tablet Featuring PureWay-C

Brain, skin and immune health

Additional Information

Swanson.com or call 1-800-437-4148

Science-backed quality since 1969

Store in a cool, dry place.

Metadata

Product Details

UPC / SKU0 87614 02408 0
DSLD Entry Date2024-12-21
Product TypeOther Combinations
FormTablet or Pill
BrandSwanson
DSLD ID322780
Data Updated2026-04-11
Research

Research Evidence

371
Research Sources
54
Avg Quality
148
Meta Analysis
82
Systematic Review
71
Rct
62
Clinical Trial
2
Regulatory Source
1
Cochrane Review
1
Narrative Review
1
Other
1
Openfda Safety
A Vitamin C supplementation in pregnancy
Meta Analysis The Cochrane database of systematic reviews 2015 PubMed DOI
A Vitamin C supplementation for the primary prevention of cardiovascular disease
Systematic Review The Cochrane database of systematic reviews 2017 PubMed DOI
A Vitamin C for preventing and treating the common cold
Meta Analysis The Cochrane database of systematic reviews 2013 PubMed DOI
A Vitamin C for preventing and treating pneumonia
Meta Analysis The Cochrane database of systematic reviews 2013 PubMed DOI
A Vitamin E supplementation in pregnancy
Meta Analysis The Cochrane database of systematic reviews 2015 PubMed DOI
A Vitamin C supplementation for prevention and treatment of pneumonia
Meta Analysis The Cochrane database of systematic reviews 2020 PubMed DOI
A Vitamin C supplementation for prevention and treatment of pneumonia
Systematic Review The Cochrane database of systematic reviews 2021 PubMed DOI
A Nutritional interventions for preventing and treating pressure ulcers
Meta Analysis The Cochrane database of systematic reviews 2024 PubMed DOI
A Does Vitamin C Supplementation Provide a Protective Effect in Periodontal Health? A Systematic Review and Meta-Analysis
Meta Analysis International journal of molecular sciences 2024 PubMed DOI
A Circulating vitamin C concentration and risk of cancers: a Mendelian randomization study
Meta Analysis BMC medicine 2021 PubMed DOI
View all evidence for Vitamin C →
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This product page is for informational purposes only and does not constitute medical advice. Always consult your healthcare provider before taking any supplement.