Life Extension · Vitamin supplement
B12 500 mcg
7 ingredients on file in the NIH Dietary Supplement Label Database, top 58% by ingredient count. Off-market, label data preserved for reference.
- 7
- Ingredients
- Top 58%
- By ingredient count
- 4
- Nutrient categories
B12 500 mcg is a vitamin supplement by Life Extension in lozenge form, listing 7 ingredients in the NIH Dietary Supplement Label Database (DSLD), maintained by the Office of Dietary Supplements at the National Institutes of Health. Currently listed as off-market (no longer available for purchase, but label data is preserved). Daily Value percentages shown below are based on FDA reference daily intake amounts for adults.
Product Details
- Type
- 💊 Vitamin
- Form
- Lozenge
- Database Entry Date
- 2016-04-22
- Ingredients
- 7
Supplement Facts (7 Ingredients)
How does B12 500 mcg compare?
Ingredients listed on each label, against the vitamin category average of 6.8. Data from the NIH DSLD.
B12 500 mcg lists 5 ingredients more than 100% Natural E Liquid.
What the Label Data Shows
According to NIH DSLD label rows, B12 500 mcg sits in the top 58% of products with a countable formula by declared ingredient count.
B12 500 mcg is cataloged in the NIH Dietary Supplement Label Database (DSLD) as a vitamin supplement built from 7 ingredients from Life Extension, sold in lozenge form. These ingredients span 4 nutrient categories, other, non-nutrient/non-botanical, vitamin, botanical, reflecting a multi-component formula rather than a single-nutrient product.
Across a broader 7-ingredient formula, 7 of 7 do not carry a reported percentage Daily Value in the source record. That missing field does not establish whether an FDA reference value exists.
Availability status shapes how this label record is best used. This product is currently listed as off-market in the DSLD, with its label first entered into the database on 2016-04-22. Once a product goes off-market, it is no longer manufactured or sold under this label, yet the DSLD keeps the record intact for historical reference, useful for researchers, anyone with an older bottle on hand, or tracking how formulations changed over time.
About the DSLD database
The DSLD is a label database, not an FDA approval list, under the 1994 DSHEA framework, dietary supplements do not require pre-market approval, and label information reflects what manufacturers self-declare rather than independent laboratory verification. This page presents factual label data for reference only and is not medical advice; consult a licensed healthcare provider before making decisions about any supplement.
Source: NIH Office of Dietary Supplements, Dietary Supplement Label Database (DSLD) Supplement label data for B12 500 mcg: ingredients, % Daily Value, market status, brand · 2026 DSLD captures manufacturer-self-declared label information; the NIH does not verify accuracy or evaluate safety/efficacy. Dietary supplements are regulated under DSHEA 1994, no pre-market FDA approval is required.
Nationwide supplements with similar label profiles
Two DSLD-derived peer sets for B12 500 mcg, both outside the Life Extension brand so the neighborhoods are not catalog containment (the same-type Nearby block above stays type-local).
Similar ingredient count
Nearest cross-brand formulas by declared ingredient count (7 here).
Similar Lozenge peers
Nearest same-form formulas from other brands.
Ingredient Breakdown by Category
Daily Value Coverage
Frequently Asked Questions
What ingredients are in B12 500 mcg? ▼
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Is B12 500 mcg still available for purchase? ▼
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Data Sources & Methodology
Data as of 2025. Source: NIH Office of Dietary Supplements, Dietary Supplement Label Database (DSLD).
Supplement label data sourced from the Source: NIH Dietary Supplement Label Database (DSLD), maintained by the Office of Dietary Supplements at the National Institutes of Health. The DSLD contains label information from dietary supplement products marketed in the United States.
Daily Value (DV) percentages are based on Source: FDA 21 CFR 101.9 Reference Daily Intake (RDI) values for adults. Products marked "Off Market" may no longer be available for purchase but their label data remains in the database for reference.
Disclaimer, Not Medical Advice
Label data from the Source: NIH Dietary Supplement Label Database (DSLD). This information is for educational and reference purposes only and does not constitute medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider before starting, stopping, or combining any dietary supplement, especially if you are pregnant, nursing, take prescription medication, or have a medical condition.
Read our methodology , how this data is sourced, computed, and verified.
Every figure on PlainVitamins is rendered directly from the NIH Dietary Supplement Label Database (DSLD), no number is typed in by an editor. This page draws directly on the NIH DSLD, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.