Label arithmetic · NIH DSLD 75768
Signature Care Magnesium 250 mg: 250 mg of magnesium per 1 caplet
250 mg of magnesium in each 1 caplet, about 0 servings per 100 Caplet. Salt not resolved from the NIH record. Inside: label lines, ingredients.
Signature Care Magnesium 250 mg declares 250 mg of elemental magnesium per 1 caplet(s); the magnesium salt is not resolved from the filed record, servings per container are not filed, Single-salt capacity audit excluded as of 2026-10-17: one salt with a defined elemental fraction is not resolved., as of 2026-11-02. No US retail price matched as of 2026-11-02. NIH DSLD 75768, label dated 2017-07-25.
as filedData release 2026-08-10-f441aa9f · registry snapshot 2026-08-10 · latest price observation 2026-10-19 · chemistry 2026-10-17
Mass: not computable · Price: none matched · % DV: 60% vs 60%
Elemental: The magnesium itself; the rest of the compound weight is the partner molecule.
Compound: The whole salt, such as magnesium glycinate, that must physically fit in the capsule.
Size 000: The largest standard capsule, about 1,100 mg of powder at 0.8 g/mL, the top of the usual 0.6–0.8 range; size 00 holds about 730 mg and size 0 about 545 mg.
Recompute with your price
Enter the price you paid; the declared amount and servings of this label are prefilled, so the result is the cost per 100 mg of elemental magnesium for your bottle.
Same-salt comparison appears here.
How much magnesium compound is in one serving?
The compound mass behind this label cannot be computed as of 2026-11-02: Single-salt capacity audit excluded as of 2026-10-17: one salt with a defined elemental fraction is not resolved.. The filed amounts are listed in the next block.
computed with assumption| Measure | Value |
|---|---|
| Elemental magnesium per serving | 250 mg |
| Units per serving | 1 |
| Magnesium salt per serving | Not computable as of 2026-11-02 |
| Magnesium salt per serving | Not computable as of 2026-11-02 |
| Capsule capacity 0 · 00 · 000 | 545 · 730 · 1,100 mg |
| Verdict | Not computable as of 2026-11-02 |
Source · NIH DSLD 75768 · label 2017-07-25; snapshot 2026-08-10 · release 2026-08-10-f441aa9f · CSV · method
How much elemental magnesium is actually in this label's filed magnesium lines?
Signature Care Magnesium 250 mg files 1 magnesium line in NIH DSLD 75768; the selected primary line declares 250 mg of elemental magnesium per serving, against 0 other rows excluded from the primary amount. A salt named under another nutrient does not turn that nutrient's quantity into elemental magnesium.
measured| Filed amount | Salt or note as filed | Role |
|---|---|---|
| 250 mg | Salt not named in this row as of 2026-11-02 | Primary serving |
Source · NIH DSLD 75768 · label 2017-07-25; snapshot 2026-08-10 · release 2026-08-10-f441aa9f · CSV · method
Does this label's magnesium claim hold up, or could the magnesium come from another source?
No single magnesium salt is resolved from the filed record as of 2026-11-02, so the source of the declared magnesium cannot be checked against capsule capacity, compared with oxide, the salt richest in magnesium at 60.3%.
computed with assumption| Form named on the label | Elemental fraction | Source |
|---|---|---|
| No form named as of 2026-11-02 | No defined fraction | named on label |
Source · NIH DSLD 75768 · label 2017-07-25; snapshot 2026-08-10 · release 2026-08-10-f441aa9f · CSV · method
Is this a good price for the elemental magnesium I'm actually getting?
No US retail price is matched to this label as of 2026-11-02, and without a resolved salt there is no same-salt comparison.
computed| Rank | Label | Per 100 mg | Observed |
|---|
Source · Amazon via licensed data provider; NIH DSLD · unique ASIN × date; prices observed 2026-10-26 to 2026-11-02 · release 2026-08-10-f441aa9f · CSV · method
How many days will this bottle last at the label's own serving, and what does a day cost?
Days per bottle cannot be computed for Signature Care Magnesium 250 mg as of 2026-11-02: servings per container are not filed.
computed| Measure | Value |
|---|---|
| Net contents as filed | 100 Caplet(s) |
| Serving size as filed | 1 Caplet(s) |
| Servings per container | Not filed as of 2026-11-02 |
| Servings per day in the directions | 1 |
| Days per bottle | Not computable as of 2026-11-02 |
| $ per 30 days at one label serving a day | No ranked price as of 2026-11-02 |
| $ per 30 days at 420 mg Daily Value | No ranked price as of 2026-11-02 |
Source · NIH DSLD 75768 · label 2017-07-25; snapshot 2026-08-10 · release 2026-08-10-f441aa9f · CSV · method
What does "60% Daily Value" mean here, and does it recompute?
The label declares 60% Daily Value; 250 mg against the 420 mg reference in 21 CFR 101.9 recomputes to 60%, the same within one point.
computed| Group as filed | Declared | Reference | Recomputed |
|---|---|---|---|
| Adults and children 4 or more years of age | 60% | 420 mg | 60% |
Source · NIH DSLD 75768; 21 CFR 101.9 · label 2017-07-25 · release 2026-08-10-f441aa9f · CSV · method
Why does this label contain these other ingredients, what shell is it, and who is it filed for?
Signature Care Magnesium 250 mg files 5 other ingredients and a vegetarian shell.
measured| Entry | Filed ingredient or declaration |
|---|---|
| 1 | Magnesium Oxide |
| 2 | Cellulose |
| 3 | Croscarmellose Sodium |
| 4 | Silica |
| 5 | Contains <2% of: |
| Shell | vegetarian |
| Target group | Adult (18 - 50 Years) |
Source · NIH DSLD 75768 · label 2017-07-25; snapshot 2026-08-10 · release 2026-08-10-f441aa9f · CSV · method
What has research measured about this form, and about side effects?
No study in the registry measured an unresolved salt as of 2026-11-02.
measured| Year | Study | PubMed |
|---|
Source · PubMed-checked study registry · registry checked 2026-08-10 · release 2026-08-10-f441aa9f · CSV · method
Has this brand had FDA recalls or adverse event reports?
Signature Care has 1 FDA recall record matched by brand name in the enforcement data queried 2026-10-19. Signature Care has FDA CAERS adverse event reports on record at brand level, as do 143 of 273 brands in this registry; openFDA states that “there is no certainty that the reported event (adverse event) was actually due to the product” and that reports “cannot be used to estimate the incidence of these events.”
measured| Recall | Date | Reason | Status |
|---|---|---|---|
| F-1013-2018 | 2018-04-18 | A packaging revision and lack of revision to the corresponding packaging batch record caused the labeling for the firm's Signature Care brand Calcium Chews dietary supplement to declare a higher level of Vitamin D than the product actually contained. The bag declares 25 mcg (1000 IU) of Vitamin D. The product actually contains 12.5 mcg (500 IU) of Vitamin D. | Terminated |
Source · openFDA enforcement and CAERS · queried 2026-10-19 · release 2026-08-10-f441aa9f · CSV · method
Is this the same formula as another brand's, and how do their prices differ?
No other brand files the same formulation (ingredients, shell, units and rounded amount) as of 2026-11-02.
computed| Label | Brand | Price per 100 mg |
|---|---|---|
| No cross-brand match as of 2026-11-02 |
Source · NIH DSLD 75768 · label 2017-07-25; snapshot 2026-08-10 · release 2026-08-10-f441aa9f · CSV · method
Which labels are closest to this one, with the same salt and dose?
No other label files the same resolved salt within ±10% of this label's dose per unit as of 2026-11-02.
computed| Label | Elemental per unit | Price | Verdict |
|---|---|---|---|
| No neighbour as of 2026-11-02 |
Source · NIH DSLD 75768 · label 2017-07-25; snapshot 2026-08-10 · release 2026-08-10-f441aa9f · CSV · method
Where does this record come from, what is missing, and how do I cite or correct it?
Every value on this page traces to NIH DSLD 75768 (label 2017-07-25, snapshot 2026-08-10) and the chemistry model of 2026-09-13. 4 gaps remain: Single-salt capacity audit excluded as of 2026-10-17: one salt with a defined elemental fraction is not resolved.; No US retail price matched as of 2026-11-02 (barcode 0 21130 78544 5); A single salt with a defined elemental fraction is unresolved as of 2026-11-02; Servings per container are not filed as of 2026-11-02. The CSV carries the values shown here.
measured| Field | As filed |
|---|---|
| NIH DSLD label | NIH DSLD 75768 |
| Label date | 2017-07-25 |
| Date entered into DSLD | 2017-07-25 |
| Barcode (UPC) as filed | 0 21130 78544 5 |
| Distributed by: | Better Living Brands LLC, Pleasanton, CA |
| Claim category as filed | All Other |
| Claim category as filed | Structure/Function |
| General: Product/Version Code | Prod. No. 3210 B51484 09E RD 17004 |
13 additional rows
| Field | As filed |
|---|---|
| General Statements: All Other Content | Quality guaranteed |
| Formula re: Contains | Magnesium 250 mg |
| FDA Statement of Identity | Dietary Supplement |
| General Statements: All Other Content | Actual size |
| General Statements: All Other Content | Our promise, quality & satisfaction 100% guaranteed or your money back |
| Suggested/Recommended/Usage/Directions | Suggested Use: Take one (1) caplet daily, preferably with a meal or as directed by a healthcare practitioner. |
| Precautions re: Pregnant or Nursing or Prescription Medications | Warning: If you are pregnant, nursing, taking any medications or have any medical condition, consult your doctor before use. |
| Precautions re: All Other | Discontinue use and consult your doctor if any adverse reactions occur. Do not use if inner seal is broken or missing. |
| Precautions re: Children | Keep out of the reach of children. |
| Storage | Store at room temperature, tightly closed. |
| General Statements: All Other Content | Potency guaranteed through (month & year): |
| Physical state | Other (e.g. tea bag) |
| Registry snapshot | 2026-08-10 |
Source · NIH DSLD 75768 · label 2017-07-25; snapshot 2026-08-10 · release 2026-08-10-f441aa9f · CSV · method
6 brand pages linked below contain magnesium labels from the NIH DSLD registry snapshot dated 2026-08-10.