Label arithmetic · NIH DSLD 316587

Pure Nootropics Magnesium: 75 mg of magnesium per capsule, 2 capsules a day (salt not resolved)

75 mg of magnesium per capsule; the label's 2 capsules a day give 150 mg. Salt not resolved from the NIH record. Inside: label lines, ingredients.

Pure Nootropics Magnesium declares 150 mg of elemental magnesium per 2 capsule(s); the magnesium salt is not resolved from the filed record, 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 316587, label dated 2024-08-22.

as filed
Elemental magnesium per serving150 mglabel 2024-08-22
Compound per capsuleNot computablesalt not resolved
Capsule verdictNot computable000 holds 1,100 mg
Magnesium per capsule75 mgone capsule from the filed serving
Price per 100 mg elementalNo price matchedas of 2026-11-02
% Daily Value38% declared · 36% recomputed420 mg reference, 21 CFR 101.9
Days per bottle90 daysat the label's own serving

Data 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: 38% vs 36%

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.

EC100Enter your bottle details

Same-salt comparison appears here.

Will 150 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 150 mg of magnesium per serving came from magnesium glycinate (14.1% magnesium), the richest amino acid chelate, standing in for the chelate the label names without its amino acid, each of the 2 capsules would need at least 532 mg of compound, so at this bound it needs at least a size 0 capsule (about 545 mg at 0.8 g/mL); the actual mix of forms may need more.

computed with assumption
Mass budget for Pure Nootropics Magnesium
MeasureValue
Elemental magnesium per serving150 mg
Units per serving2
Magnesium salt per servingNot computable as of 2026-11-02
Magnesium salt per capsuleNot computable as of 2026-11-02
Capsule capacity 0 · 00 · 000545 · 730 · 1,100 mg
VerdictNot computable as of 2026-11-02

Source · NIH DSLD 316587 · label 2024-08-22; 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 Nootropics Magnesium files 1 magnesium line in NIH DSLD 316587; the selected primary line declares 150 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
Magnesium lines filed for Pure Nootropics Magnesium
Filed amountSalt or note as filedRole
150 mgTRAACSPrimary serving

Source · NIH DSLD 316587 · label 2024-08-22; 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
Magnesium forms named on Pure Nootropics Magnesium
Form named on the labelElemental fractionSource
No form named as of 2026-11-02No defined fractionnamed on label

Source · NIH DSLD 316587 · label 2024-08-22; 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
Ranked offers by price per 100 mg of declared elemental magnesium, and this label
RankLabelPer 100 mgObserved

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 Nootropics Magnesium lasts 90 days: 90 servings against 1 serving a day in the filed directions.

computed
Package arithmetic for Pure Nootropics Magnesium
MeasureValue
Net contents as filed180 Vegetarian Capsule(s)
Serving size as filed2 Capsule(s)
Servings per container90
Servings per day in the directions1
Days per bottle90 days
$ per 30 days at one label serving a dayNo ranked price as of 2026-11-02
$ per 30 days at 420 mg Daily ValueNo ranked price as of 2026-11-02

Source · NIH DSLD 316587 · label 2024-08-22; snapshot 2026-08-10 · release 2026-08-10-f441aa9f · CSV · method

What does "38% Daily Value" mean here, and does it recompute?

The label declares 38% Daily Value; 150 mg against the 420 mg reference in 21 CFR 101.9 recomputes to 36%, a difference of 2 points. Labels filed under the earlier 400 mg reference, or with a different filing basis, show gaps of this kind.

computed
dumbbell · Pure Nootropics Magnesium · declared 38% vs recomputed 36% Daily Value · 21 CFR 101.9
Declared 38% against 36% recomputed at the 420 mg reference.
Chart data
Chart labels and values for What does "38% Daily Value" mean here, and does it recompute?
Displayed chart text
Declared vs recomputed %
DV
36 · 38
Declared vs
recomputed % DV
Declared and recomputed percent Daily Value
Group as filedDeclaredReferenceRecomputed
Adults and children 4 or more years of age38%420 mg36%

Source · NIH DSLD 316587; 21 CFR 101.9 · label 2024-08-22 · 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 Nootropics Magnesium files 2 other ingredients and a vegetarian shell.

measured
Other ingredients and target groups as filed
EntryFiled ingredient or declaration
1Hypromellose
2Stearate
Shellvegetarian
Target groupAdult (18 - 50 Years)
Target groupWomen (not pregnant or lactating)
Target groupGluten Free

Source · NIH DSLD 316587 · label 2024-08-22; 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
Registry studies involving this salt
YearStudyPubMed

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 Nootropics has 0 FDA recall records matched by brand name in the enforcement data queried 2026-10-19. Pure Nootropics 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
FDA recall records for Pure Nootropics
RecallDateReasonStatus
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
Formulation match
LabelBrandPrice per 100 mg
No cross-brand match as of 2026-11-02

Source · NIH DSLD 316587 · label 2024-08-22; 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
Labels with the same salt and dose
LabelElemental per unitPriceVerdict
No neighbour as of 2026-11-02

Source · NIH DSLD 316587 · label 2024-08-22; 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 316587 (label 2024-08-22, 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 B079PWNJ2Y); A single salt with a defined elemental fraction is unresolved as of 2026-11-02. The CSV carries the values shown here.

measured
Full NIH DSLD record for Pure Nootropics Magnesium
FieldAs filed
NIH DSLD labelNIH DSLD 316587
Scanned label (PDF)Label 316587 scan
Label date2024-08-22
Date entered into DSLD2024-08-22
Barcode (UPC) as filedB079PWNJ2Y
Formulated and Distributed byPure Nootropics, LLC, Albuquerque, NM
Claim category as filedNutrient
Claim category as filedAll Other
16 additional rows
Full NIH DSLD record for Pure Nootropics Magnesium, additional rows
FieldAs filed
Claim category as filedStructure/Function
Formulation re: OtherBone strength Relaxation Cardiac health
General Statements: All Other ContentUnlock your potential
FDA Statement of IdentityDietary Supplement
Formulation re: OtherSupports overall wellness
Formula re: ContainsMagnesium Bisglycinate Chelate
Precautions re: All OtherWarning: Consult with a healthcare practitioner before taking this.
Precautions re: Pregnant or Nursing or Prescription MedicationsDo not take this if you are pregnant, nursing, or under the age of 18.
Precautions re: All OtherIf you experience adverse reactions from taking this product, discontinue immediately and contact a healthcare practitioner.
Suggested/Recommended/Usage/DirectionsSuggested use: Take 2 capsule daily or as recommended by your healthcare practitioner.
FDA Disclaimer StatementThese statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
Precautions re: ChildrenDo not take this if you are pregnant, nursing, or under the age of 18. Keep out of reach of children.
Formulation re: Does NOT ContainAlways Non-GMO Gluten free Preservative free
Brand IP Statement(s) re: (c), (TM), (SM)TRAACS is a registered trademark of Albion Laboratories, Inc.
Physical stateCapsule
Registry snapshot2026-08-10

Source · NIH DSLD 316587 · label 2024-08-22; 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.

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