Brand · NIH DSLD
Jarrow Formulas magnesium labels
Jarrow Formulas files 1 on-market magnesium label; the magnesium salt is not named in the filed record for it, so the compound mass cannot be computed.
Composition across the portfolio · as filed
What Jarrow Formulas puts in the capsule besides magnesium
- 1 of 1 label lists magnesium stearate. Stearate is 4.1% magnesium by mass and that magnesium is not on the Supplement Facts line; the amount of stearate is not declared, so it cannot be quantified.
- 1 label uses a cellulose-based shell.
Label declarations · as filed
What Jarrow Formulas claims on its labels
Filed declarations across this brand's labels: 6 distinct filed entries across 1 NIH DSLD labels, counted 2026-09-13; these are manufacturer statements.
- Vegan — on 1 of 1 label
- Vegetarian — on 1 of 1 label
- Adult (18 - 50 Years) — on 1 of 1 label
- No Allergies — on 1 of 1 label
- Gluten Free — on 1 of 1 label
- Dairy Free — on 1 of 1 label
What is not known · as of 2026-09-13
Gaps in the record for Jarrow Formulas
- 1 of 1 label does not name the magnesium salt in the filed record, so no compound mass can be computed for it.
- 1 of 1 label has no US retail listing matched as of 2026-09-13. That is a matching gap on our side, not evidence of unavailability.
Labels 1
| Magnesium OptimizerNIH DSLD · Label 307647 · Tablet or Pill | form not mapped yet | 100 mg | 100 | 10.00 g | Not tracked yet |
Forms filed
Compare within a form
These labels file no magnesium form text (form not mapped yet).
See all brands, all labels, or the priced form tables.
Filed composition facets
8 published excipient facets occur across 1 labels from Jarrow Formulas in the NIH DSLD records, counted 2026-09-13.
- calcium carbonate: 1 of 1 labels.
- croscarmellose sodium: 1 of 1 labels.
- glycerin: 1 of 1 labels.
- hydroxypropyl cellulose: 1 of 1 labels.
- hypromellose: 1 of 1 labels.
- magnesium stearate: 1 of 1 labels.
- microcrystalline cellulose: 1 of 1 labels.
- silicon dioxide: 1 of 1 labels.
FDA recall records for this firm
The FDA enforcement database holds 1 recall records naming Jarrow Formulas (queried 2026-09-13); 0 of them concern a magnesium product.
These are exact brand-string matches in the recalling-firm field or product description, including other products. A name match does not establish that two similarly named firms are the same legal entity. The recalling firm and recalled product are shown in each row.
| Report date | Class | Product described by FDA | Reason for recall | Status | openFDA record |
|---|---|---|---|---|---|
| 2018-02-07 | Class II | Jarrow Formulas Liquid L-Carnitine; 16 fl oz. (475 ml) bottle, dietary supplement; product number 102006; UPC 7 90011 02006 6; Vitamin B5 10 mg; L-Carnitine 1000 mg; Other ingredients: Purified water, xylitol, glycerin, citric acid, natural lemon-lime flavor, nisin (as a preservative). Distributed exclusively by Jarrow Formulas Los Angeles, CA. Recalling firm: Jarrow Formulas Inc. Description does not name a magnesium product. | A higher than normal micro result was found at the six month time point for one lot of Liquid L-Carnitine. | Terminated | F-0682-2018 |
FDA assigns 3 recall classes by the assessed hazard, using the FDA classification definitions, checked 2026-09-13:
- Class I: Exposure to or use of the violating product carries a reasonable probability of serious harm to health or death.
- Class II: Exposure or use may produce temporary or medically reversible harm; the probability of serious harm is remote.
- Class III: Adverse health consequences from exposure or use are unlikely.
The FDA adverse event reporting system (CAERS) holds 49 reports naming Jarrow Formulas as of 2026-09-13. This is a count of submitted reports across all the firm's products; it is not an incidence rate and implies no causation.
The metric
What EC100 measures
EC100 = container price ÷ (elemental mg per serving × servings per container ÷ 100)
It normalizes the declared elemental amount to a 100 mg unit. It does not score ingredients, quality, or outcomes.