C-1000®

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.

Serving Size: 1 Tablet(s) · 1 per day

Percent Daily Value (DV)

• 

  21st Century 1000 mg 60 Tablets

  iHerb4.8(7800)

  $4.49
• 

  21st Century C 1000 Mg Tablets

  21st-century-vitamins4.8(7800)

  $8.99
• 

  21st Century Prolonged Release Tablets

  iHerb4.7(769)

  $9.99
• 

  21st Century Natural C-1000 Rose Hips Caplets

  21st-century-vitamins4.9(1700)

  $9.99
• 

  21st Century Prolonged Release C Tablets

  Hey Pharma4.7(769)

  $13.89
• 

  21st Century C Prolonged Release Tablets

  Walmart - Pharma Frills

  $13.89
• 

  21st Century C-1000 Prolonged Release 110 Tablets

  GoSupps.com4.7(769)

  $34.99
• 

  21st Century Calcium Plus D3 1000 mg Tablets

  Thrifty White Health Essentials4.7(3700)

  $5.00

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.

• The Vitamin Shoppe

  4.4 (128)

  Vitamin & supplements store

  2408 W Memorial Rd, Oklahoma City, OK 73134

  Directions(405) 302-4850

• GNC

  4.2 (46)

  Vitamin & supplements store

  7201 SE 29th St #205, Midwest City, OK 73110

  Directions(405) 741-0443

• GNC

  4.2 (37)

  Vitamin & supplements store

  6957 Northwest Expy, Oklahoma City, OK 73132

  Directions(405) 721-0844

• GNC

  3.2 (9)

  Vitamin & supplements store

  2300 W Memorial Rd Space #2, Oklahoma City, OK 73134

  Directions(405) 849-5356

• Systems biology, toxins, obesity, and functional medicine

  M Hyman - Altern Ther Health Med, 2007 - academia.edu

  … Take extra-buffered vitamin C 1000-4000 mg a day with … In the face of the toxic environment of the 21st century, and with … by which toxins affect health and novel clinical strategies for …

  200746 citations

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

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

  … Evidence shows that supplementation can play a valuable role in the health of the pregnant … 21st century lifestyle and the nutritional content of food, good quality nutritional supplements …

  200671 citations

• Dietary Supplements in Pregnancy and Postpartum: Evidence, Safety Challenges and a Precision Nutrition Framework (GAPSS)

  J Chen, M Duan, Z Zhu, R Su, J Cai - Antioxidants, 2026 - mdpi.com

  … In conclusion, optimal maternal and foetal health in the 21st century will not be achieved through more generic multivitamins, but through precision strategies that respect the unique …

  20262 citations

• Current issues and perspectives in prenatal nutrition

  JC Morrison, J Elliott, RA Knuppel… - Research and Reports …, 2011 - Taylor & Francis

  … that contribute to maternal and fetal health (folate and doco… , the combination of vitamin C 1000 mg and vitamin E 400 IU … As the 21st century progresses, we should continue to focus …

  20118 citations

• A combination of high-dose vitamin C plus zinc for the common cold

  S Maggini, S Beveridge… - … of International Medical …, 2012 - journals.sagepub.com

  … in nutrition, immune support and maintenance of health. Vitamin C is a cofactor for several … Zinc deficiency is an important public health problem affecting 2 billion people worldwide,2,…

  2012119 citations

• Nutrition, Diet, and Supplements for Peak Physical & Mental Performance

  JD Furber - 1982 - legendarypharma.com

  … The report that follows lists dosages of more than 30 vitamins, minerals, antioxidants, and herbs that appear to be beneficial supplements to a healthy diet. It also lists some inexpensive …

  1982

Data sourced from the U.S. National Institutes of Health, Office of Dietary Supplements Dietary Supplement Label Database (DSLD) · Label entered 2015-03-25. DSLD Label ID: 43552. 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.