C 500 mg®

Objective insights generated automatically from the official DSLD label — a quick, factual read of how this product is formulated and disclosed.

This analysis is generated algorithmically from label data for educational reference only. It is not a product endorsement, ranking, or medical advice.

Allergen flags are parsed automatically from the official label's claims and statements. Always verify against the physical product label before use, especially if you have a severe allergy.

Serving Size: 1 Tablet(s) · 1 per day

Not Present

• 

  21st Century C 500 Mg Tablets

  21st-century-vitamins4.8(4800)

  $4.99Lowest
• 

  21st Century Prolonged Release C Tablets

  21st-century-vitamins4.8(5000)

  $7.99
• 

  21st Century Natural C-500 Rose Hips 500 mg Tablets

  iHerb4.8(1600)

  $6.99
• 

  21st Century Chewable Tablets

  21st-century-vitamins4.8(1700)

  $7.99
• 

  21st Century C-500 Tablets

  Walmart - iHerb4.8(4500)

  $10.34
• 

  21st Century C-500 - 250 Tablets

  GoSupps.com4.8(4800)

  $34.99
• 

  21st Century Calcium 500 + D3 Tablets

  Target4.8(1100)

  $14.99
• 

  21st Century C 500 Mg Tablets 110 Count (Pack of 2)

  GoSupps.com4.8(4800)

  $24.99

Enter your city or ZIP code to find supplement & health stores in your area that may carry this product.

Showing representative supplement & health retailers — search above for stores in your area.

• RightNutri

  4.9 (78)

  Vitamin & Supplements Shop

  26 Queenstown Rd, London SW8 3RX

  Directions0800 098 8888

• Supplemented

  4.7 (192)

  Vitamin & Supplements Shop

  Online Retail Ltd Box 1031A, Surbiton, Kingston upon Thames KT1 9AH

  Directions

• London Supplements

  3.7 (84)

  Vitamin & Supplements Shop

  13, Waverley Industrial Park Waverley Industrial Estate, Hailsham Dr, Harrow HA1 4TR

  Directions020 8863 0300

• G&G Vitamins

  4.7 (36)

  Vitamin & Supplements Shop

  Vitality House, 2-3 Imberhorne Way, East Grinstead RH19 1RL

  Directions01342 311401

• Specialist Supplements Ltd (Trade Division)

  4.9 (237)

  Vitamin & Supplements Shop

  Enterprise Park, Unit 4 East Street, Rhayader LD6 5ER

  Directions01597 810547

• British Supplements

  3.4 (274)

  Vitamin & Supplements Shop

  34, New House, 67-68 Hatton Garden, London EC1N 8JY

  Directions07768 405406

• Lifestyle Vitamins

  4.2 (10)

  Vitamin & Supplements Shop

  Enterprise Centre, Nutribrand, Pine Grove, Crowborough TN6 1DH

  Directions01825 817343

• Supplement Hub

  4.0 (6)

  Vitamin & Supplements Shop

  The Old Chapel, 8 Mortimer St, Sheffield City Centre, Sheffield S1 4SF

  Directions0114 700 5677

• Ascorbic acid in the 21st century–more than a simple antioxidant

  HR Griffiths, J Lunec - Environmental toxicology and pharmacology, 2001 - Elsevier

  … oxidised base lesion 8-oxoadenine (8-oxoA) during supplementation with 500 mg/day vitamin C in normal healthy subjects. Earlier this year, further infamy resulted from the preliminary …

  2001183 citations

• Nutritional supplements in pregnancy: commercial push or evidence based?

  M Glenville - Current Opinion in Obstetrics and Gynecology, 2006 - journals.lww.com

  … that supplementation can play a valuable role in the health of … the limitations of the 21st century lifestyle and the nutritional … A combination of vitamin C (500 mg/day) and vitamin E (400 IU…

  200670 citations

• Global hotspots and trends of nutritional supplements for sick populations from 2000 to 2024

  C Shi, H Liu, T Fu, Y Li, H Zhao, F Liu - Frontiers in Nutrition, 2025 - frontiersin.org

  … (500 mg/d vitamin C, 400 IU/d vitamin E, and 15 mg/d β-carotene) along with zinc (80 mg zinc … become a popular dietary supplement that improves a variety of health-specific outcome …

  20252 citations

• … safety of multivitamin and mineral supplement use to prevent cancer and chronic disease in adults: a systematic review for a National Institutes of Health state-of-the …

  HY Huang, B Caballero, S Chang… - Annals of internal …, 2006 - acpjournals.org

  … of multivitamin and mineral supplements. For public health policymakers, our conclusion is … from routine use of multivitamin and mineral supplements by adults in the United States for …

  2006343 citations

• The Health Delusion: How to Achieve Exceptional Health in the 21st Century

  G Matten, A Goggins - 2012 - books.google.com

  … magazines, wonder foods and supplements, surely we should be brimming with health? When it comes to conquering disease who needs more information than that to stay in tiptop …

  20126 citations

• Herbal medicine of the 21st century: a focus on the chemistry, pharmacokinetics and toxicity of five widely advocated phytotherapies

  S Suroowan, MF Mahomoodally - Current Topics in Medicinal …, 2019 - ingentaconnect.com

  … Consequently, this review is an attempt to highlight the health benefits, pharmacokinetics, … not dosedependent; 500 mg/individual (2.3 L/kg-0.42 to 0.45 L/h/kg), 1000 mg/individual (3.1 L/…

  201938 citations

Data sourced from the U.S. National Institutes of Health, Office of Dietary Supplements Dietary Supplement Label Database (DSLD) · Label entered 2021-10-22. DSLD Label ID: 258363. This information is provided for educational reference only and is not medical advice. Always follow the product label and consult a doctor or pharmacist before use.