Label arithmetic · NIH DSLD 305964
Pure TheraPro Rx Optimum Magnesium: 125 mg of magnesium per capsule, 2–4 capsules a day – glycinate + lysinate
125 mg of magnesium per capsule; the label's 2–4 capsules a day give 250–500 mg. From glycinate + lysinate. Inside: label lines, ingredients.
Pure TheraPro Rx Optimum Magnesium declares 250 mg of elemental magnesium from an amino acid chelate. "Amino acid chelate" names a class of compounds rather than one defined substance, so no elemental fraction exists and the compound mass cannot be computed from the label. No US retail price matched as of 2026-11-02. NIH DSLD 305964, label dated 2024-01-24.
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.
Will 250 mg of magnesium actually fit in one capsule, or do I need more than one?
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. Lower bound, not a measurement: even if all 250 mg of magnesium per serving came from magnesium glycinate (14.1% magnesium), the form named for magnesium on the label, each of the 2 capsules (the most the serving allows) would need at least 887 mg of compound, so at this bound it needs at least a size 000 capsule (about 1,100 mg at 0.8 g/mL); the actual mix of forms may need more.
computed with assumption| Measure | Value |
|---|---|
| Elemental magnesium per serving | 250 mg |
| Units per serving | 1–2 |
| Magnesium salt per serving | Not computable as of 2026-11-02 |
| Magnesium salt per capsule | 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 305964 · label 2024-01-24; snapshot 2026-08-10 · release 2026-08-10-f441aa9f · CSV · method
How much elemental magnesium is actually in this label's filed magnesium lines?
Pure TheraPro Rx Optimum Magnesium files 1 magnesium line in NIH DSLD 305964; 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 | glycinate, lysinate · TRAACS magnesium lysinate glycinate chelate | Primary serving |
Source · NIH DSLD 305964 · label 2024-01-24; 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?
The label names 2 magnesium forms (glycinate, lysinate); a named blend does not establish how much magnesium each form contributes, so the resolved reading is the most favourable one, compared with oxide, the salt richest in magnesium at 60.3%.
computed with assumption| Form named on the label | Elemental fraction | Source |
|---|---|---|
| Magnesium glycinate | 11.8–14.1% | named on label |
| lysinate | No defined fraction | named on label |
Source · NIH DSLD 305964 · label 2024-01-24; 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?
At the label's own serving, Pure TheraPro Rx Optimum Magnesium lasts 60 days: 120 servings against 2 servings a day in the filed directions.
computed| Measure | Value |
|---|---|
| Net contents as filed | 240 Delayed-Release Capsule(s) |
| Serving size as filed | 1–2 Capsule(s) |
| Servings per container | 120 |
| Servings per day in the directions | 2 |
| Days per bottle | 60 days |
| $ 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 305964 · label 2024-01-24; 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 305964; 21 CFR 101.9 · label 2024-01-24 · 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?
Pure TheraPro Rx Optimum Magnesium files 1 other ingredient and a vegetarian shell.
measured| Entry | Filed ingredient or declaration |
|---|---|
| 1 | Hypromellose |
| Shell | vegetarian |
| Target group | Vegan |
| Target group | Vegetarian |
| Target group | Adult (18 - 50 Years) |
| Target group | Gluten Free |
| Target group | Dairy Free |
Source · NIH DSLD 305964 · label 2024-01-24; 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?
Pure TheraPro Rx has 0 FDA recall records matched by brand name in the enforcement data queried 2026-10-19. Pure TheraPro Rx has no FDA CAERS adverse event report on record at brand level as of 2026-10-19 (143 of 273 brands in this registry have at least one CAERS report).
measured| Recall | Date | Reason | Status |
|---|---|---|---|
| No recall record as of 2026-10-19 |
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 305964 · label 2024-01-24; 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 305964 · label 2024-01-24; 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 305964 (label 2024-01-24, snapshot 2026-08-10) and the chemistry model of 2026-09-13. 3 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 X000S6LUPB); A single salt with a defined elemental fraction is unresolved as of 2026-11-02. The CSV carries the values shown here.
measured| Field | As filed |
|---|---|
| NIH DSLD label | NIH DSLD 305964 |
| Scanned label (PDF) | Label 305964 scan |
| Label date | 2024-01-24 |
| Date entered into DSLD | 2024-01-24 |
| Barcode (UPC) as filed | X000S6LUPB |
| Label version · Image difference, same product | NIH DSLD 269060 |
| Distributed by | Pure TheraPro Rx, Westminster, CO |
| Claim category as filed | Nutrient |
24 additional rows
| Field | As filed |
|---|---|
| Claim category as filed | All Other |
| Claim category as filed | Structure/Function |
| Suggested/Recommended/Usage/Directions | Directions: Take one (1) to two (2) capsules twice daily at or between meals, or as directed by a healthcare practitioner. |
| Precautions re: Pregnant or Nursing or Prescription Medications | Warning: Individuals taking medication, children and pregnant or lactating women should consult their healthcare practitioner prior to use. |
| Precautions re: Children | Warning: Individuals taking medication, children and pregnant or lactating women should consult their healthcare practitioner prior to use. |
| Precautions re: All Other | Do not use if tamper seal is damaged. |
| Formula re: Contains | Optimum Magnesium contains patented mineral-amino acid chelates in delayed release capsules with zero fillers. Designed for enhanced absorption, this non-laxative formula features highly bioavailable, well-tolerated TRAACS Magnesium Lysinate Glycinate Chelate (mineral-amino acid chelate). Magnesium insufficiency is widespread in adults globally, yet critical for optimum vitality. Involved in over 300 enzyme-related processes including cardiac, muscle and nerve functions, magnesium also plays a key role in supporting strong teeth, optimal bone density and maintenance of normal blood glucose levels. Malic acid from Albion DiMagnesium Malate is included to enhance magnesium's efficacy and provide nutritive support for healthy muscular energy. It has also been shown to enhance the body's all-important glutathione and antioxidant systems. |
| Storage | Storage: Keep tightly closed in a cool, dry place. Do not throw out the desiccant, as it's needed for freshness. |
| Precautions re: Children | Keep out of reach of children. |
| Formulation re: Does NOT Contain | Formulated to exclude: Fillers, gluten, wheat, soy, corn, yeast, animal or dairy products, shellfish, fish, peanuts, tree nuts, egg, ingredients derived from genetically modified organisms (GMO's), artificial preservatives, sweeteners or colors. |
| FDA Disclaimer Statement | These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. |
| Seals/Symbols | GMP Certified Good Manufacturing Practice |
| Formulation re: Vegetarian/Vegan | Vegan |
| Formulation re: Other | Maximum absorption |
| Brand IP Statement(s) re: (c), (TM), (SM) | Patented mineral chelates |
| FDA Statement of Identity | Professional Dietary Supplement |
| Brand IP Statement(s) re: (c), (TM), (SM) | DRcaps Hypromellose capsules Albion Minerals DRcaps & logo are trademarks of Lonza or its affiliates. Albion and TRAACS are registered trademarks of Albion Laboratories, Inc. Malate covered by U.S. Patent 6,706,904 and patents pending. |
| Brand IP Statement(s) re: (c), (TM), (SM) | Pure TherPro Rx Purity is Priority |
| Formulation re: Other | Formulated, tested & packaged in the USA |
| General Statements: All Other Content | Please recycle |
| Brand IP Statement(s) re: (c), (TM), (SM) | Copyright 2022 Pure TheraPro Rx |
| Formula re: Contains | Patented mineral chelates |
| Physical state | Capsule |
| Registry snapshot | 2026-08-10 |
Source · NIH DSLD 305964 · label 2024-01-24; 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.