B-12 1000 mcg®

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 B 12 mcg

  Inman Pharmacy4.7(6900)

  $6.89
• 

  21ST CENTURY VITAMIN B12 1000 MCG TIME RELASE TABLET (1 Tablet)

  Amazon.com

  $7.80
• 

  21st Century B-12 1000Mcg Prolonged Release Tablets 110 Count (3 Pack)

  GoSupps.com4.7(6900)

  $44.99
• 

  21st Century Vitamin B-12 2500 mcg Tablets

  Walmart4.7(1700)

  $11.73
• 

  21st Century B-12 1000Mcg Prolonged Release Tablets 110 Count (6 Pack)

  GoSupps.com4.7(6900)

  $79.99
• 

  21st Century B-100 Complex Prolonged Release Tablets

  iHerb4.8(2200)

  $9.49
• 

  21st Century B Complex Plus Tablets

  Walmart - iHerb4.8(9000)

  $8.61
• 

  Nature Made Vitamin B12 1000 mcg

  Target4.6(988)

  $18.99

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.

• ITL Health

  5.0 (37)

  Vitamin & Supplements Shop

  50 Broadway, London SW1H 0BL

  Directions0118 321 7628

• Minerva Wellness

  5.0 (21)

  Vitamin & Supplements Shop

  71-75 Shelton St, London WC2H 9JQ

  Directions020 7459 4641

• Nutriburst

  4.6 (30)

  Manufacturer

  8 Waterloo Pl, London SW1Y 4BN

  Directions020 3943 8201

• Prodentim

  5.0 (1)

  Vitamin & Supplements Shop

  72 Regent St., London W1B 4EN

  Directions028 6745 7567

• Protiv Nutrition

  5.0 (1)

  Vitamin & Supplements Shop

  3rd Floor, 207 Regent St., London W1B 3HH

  Directions07442 915758

• Holland & Barrett - Strand

  3.7 (51)

  Vitamin & Supplements Shop

  406-408 Strand, London WC2R 0NE

  Directions0330 058 2640

• RightNutri

  4.9 (78)

  Vitamin & Supplements Shop

  26 Queenstown Rd, London SW8 3RX

  Directions0800 098 8888

• Nayble Health & Sports

  5.0 (139)

  Vitamin & Supplements Shop

  18 Chamberlayne Rd, London NW10 3JD

  Directions020 7625 5111

• Revisiting vitamin B12 deficiency: A clinician's guide for the 21st century

  BJ Wentworth, AP Copland - Pract Gastroenterol, 2018 - practicalgastro.com

  … Vitamin B12 (cobalamin) deficiency is a common disorder encountered across various medical … , and summarizes the available nutritional and medical literature regarding management. …

  201813 citations

• Vitamin B12 deficiency–A 21st century perspective

  MJ Shipton, J Thachil - Clinical medicine, 2015 - Elsevier

  … worldwide, with vitamin B 12 deficiency being recognised as a health concern nearly 100 years … In this review, the terms vitamin B 12 and cobalamin will be used interchangeably, with ‘…

  2015542 citations

• Effects of a Novel Dispersible Supplement Containing 2500 IU of Vitamin D and 1000 µg of B12 in Restoring Vitamin D and B12 Insufficiency: A Multicenter …

  N Angelopoulos, RD Paparodis, I Androulakis… - Nutrients, 2025 - mdpi.com

  … By evaluating the supplement’s impact on serum vitamin levels and associated health … per day for one to two weeks, followed by a maintenance dose of 1000 mcg daily for life [25]…

  20251 citations

• Vitamin B12 in Foods, Food Supplements, and Medicines—A Review of Its Role and Properties with a Focus on Its Stability

  Ž Temova Rakuša, R Roškar, N Hickey, S Geremia - Molecules, 2022 - mdpi.com

  … storage affect B 12 stability in foods, food supplements, and … content-related quality of vitamin B 12 products on the market. … Vitamin B 12 deficiency is an important public health issue, …

  2022159 citations

• Vitamin B12

  HRLMS ChE - Archives of Internal Medicine, 2002 - godfire.net

  … of 1000 micrograms of vitamin B-12 for three consecutive days, then 1000 micrograms weekly … ), which indicates a B-12 deficiency, was found in 23% of the healthy elderly people and in …

  200226 citations

• Comparative bioavailability and utilization of particular forms of B12 supplements with potential to mitigate B12-related genetic polymorphisms

  C Paul, DM Brady - Integrative Medicine: A Clinician's Journal, 2017 - pmc.ncbi.nlm.nih.gov

  … However, a 2010 study assessed B 12 status versus B 12 … vitamin B 12 /d is associated with an adequate vitamin B 12 status… in a healthy population between 18 and 50 years of age.”16 …

  2017158 citations

Data sourced from the U.S. National Institutes of Health, Office of Dietary Supplements Dietary Supplement Label Database (DSLD) · Label entered 2019-08-23. DSLD Label ID: 205562. 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.