Label arithmetic · NIH DSLD 184671

Pure Encapsulations Magnesium (Citrate/Malate)

Pure Encapsulations Magnesium (Citrate/Malate) was observed at $20.50 on 2026-09-07, which is $0.19 per 100 mg of elemental magnesium; NIH DSLD 184671, label dated 2019-01-07, calculation 2026-09-13.

FDA recall records for Pure Encapsulations: 2 · queried 2026-09-13; brand-string matches across products.

Label facts and derived measurements

The numbers for this label

Pure Encapsulations Magnesium (Citrate/Malate) has 14 published fields below, traced to NIH DSLD 184671 and the 2026-08-10 registry snapshot, with calculations dated 2026-09-13.

Values published in this page's Product metadata
FieldValueEvidence tier
NIH DSLD identifier184671observed
Resolved saltSingle salt unresolved as of 2026-09-13computed
Source of the resolved saltSingle salt unresolved as of 2026-09-13observed
Elemental magnesium per serving (mg)120observed
Servings per container90observed
Elemental magnesium per container (mg)10800computed
Compound mass per discrete unitDiscrete unit mass not computable as of 2026-09-13computed
Capsule fill verdictMass budget unavailable as of 2026-09-13modelled
Required standard capsule sizeCapsule size not applicable or unresolved as of 2026-09-13modelled
Label date2019-01-07observed
Retail match confidencelegacy-verifiedcomputed
Observed container price (USD)20.5observed
Price observation date2026-09-07observed
Cost per 100 mg elemental (USD)0.1898computed

Observed means a value transcribed from a label or price observation. Computed means arithmetic or normalization of those inputs. Modelled means the result depends on a stated physical assumption, including capsule capacity. Evidence tiers and their limits.

Source transcription · observed

Magnesium lines as filed

Pure Encapsulations Magnesium (Citrate/Malate) retains 1 magnesium-related rows in NIH DSLD 184671, including 1 rows selected for the primary serving, from label 2019-01-07, examined 2026-09-13.

Filed amounts, salt names and serving order
Filed amountServing orderFiled salt / notesCalculation role
120 mg1citrate, malate

Magnesium (Form: as Magnesium Citrate, Magnesium Malate)

Selected primary serving

The elemental amount comes from the selected magnesium line. A salt named under another nutrient does not make that nutrient's quantity an elemental magnesium value. Distinct unresolved primary amounts remain ambiguous; they are not added together.

Within one salt · computed from observed prices

Cost per 100 mg within citrate

Pure Encapsulations Magnesium (Citrate/Malate)'s $0.1898 per 100 mg of elemental magnesium is at percentile 95 among 19 citrate labels with observed prices, using confirmed gold-set matches observed 2026-08-10 to 2026-09-11, calculated 2026-09-13.

Price and comparison within citrate
Observed item price · Amazon$20.50 on 2026-09-07
Cost per 100 mg elemental$0.1898
Observed prices in citrate19 confirmed matches
Percentile95
Match confidencelegacy-verified

Percentile = 100 × the number of prices at or below this EC100 ÷ the number of observed prices in this salt, rounded to an integer. Ties receive the same percentile. The comparison includes this label; a high percentile means higher observed cost. Price is the dated item observation, excluding tax, shipping, coupons and subscriptions.

Package arithmetic · observed inputs, computed totals

What the package works out to

Pure Encapsulations Magnesium (Citrate/Malate) works out to 90 days per package at the label's own serving and filed frequency of 1 servings per day, according to label 2019-01-07, calculated 2026-09-13.

Arithmetic using the label's own serving, not intake advice
Net contents as filed90 Capsule(s)
Discrete units in the package90
Serving size as filed1–4 Capsule(s)
Units per serving1–4
Servings per package90
Daily servings in the label instructions1
Days per package at the label's own serving90 days
Price per serving$0.2278 · computed from price observed 2026-09-07
Price per day at the label's own serving$0.2278 · computed from price observed 2026-09-07

Days = filed servings per container ÷ filed servings per day. If the label gives a frequency range, the largest frequency gives the shortest duration. Cost per serving = observed item price ÷ filed servings; cost per label-day multiplies this by the filed frequency. This follows the label's own instructions; it is package arithmetic, not intake advice.

Percent daily value · observed and computed

The label's percent daily value, recomputed

Pure Encapsulations Magnesium (Citrate/Malate) files 1 magnesium percent-daily-value entries in NIH DSLD 184671; the check below applies the group-specific references in 21 CFR 101.9 to its 120 mg primary serving, calculated 2026-09-13.

Declared values and current-reference arithmetic
Group as filedDeclaredReferenceRecomputedDifference
Adults and children 4 or more years of age29%420 mg29%0 percentage points

Percent daily value = declared elemental mg ÷ the group's reference mg × 100, rounded to an integer. The adult and age-four-plus reference is 420 mg. Historical labels can use earlier references; a difference does not establish a filing error. Full-record entries may cover multiple serving sizes, so this table identifies the primary-serving basis explicitly. Group references and interpretation.

Composition · observed

Other ingredients in the filed record

Pure Encapsulations Magnesium (Citrate/Malate) lists 2 other ingredients in NIH DSLD 184671, label dated 2019-01-07, examined 2026-09-13.

Other ingredients as filed
EntryIngredient
1Vegetarian Capsule
2Ascorbyl Palmitate

Capsule material: vegetarian. The material classification follows the filed ingredient names; it is not a test of the shell.

Label declarations · observed

Target groups as filed

Pure Encapsulations Magnesium (Citrate/Malate) has 2 target-group entries in NIH DSLD 184671, label dated 2019-01-07, examined 2026-09-13.

Manufacturer-filed target groups
EntryFiled group
1Adult (18 - 50 Years)
2Gluten Free

Provenance · observed

Registry record, versions and scanned label

The registry holds 10 versions of this label for Pure Encapsulations Magnesium (Citrate/Malate), according to the retained record examined 2026-09-13; the label date is 2019-01-07.

Source record for Pure Encapsulations Magnesium (Citrate/Malate)
NIH DSLD labelNIH DSLD 184671
Registry snapshot2026-08-10
Label date2019-01-07
Physical stateCapsule
Barcode as filed7 66298 00435 8
Versions held by the registry10; version details are not available in this enrichment record as of 2026-09-13
Calculation date2026-09-13

The barcode is retained as an identifier, not as proof of a retail match. A registry version count records the number held; it does not reveal what changed. The label date, registry snapshot and price-observation date describe different events.

Gaps in this record

What is not available for this label

Pure Encapsulations Magnesium (Citrate/Malate) has 1 unresolved data gaps in the retained NIH DSLD and price records as of 2026-09-13.

Dated missing-data statements
EntryKnown gap
1A single salt with a defined elemental fraction is unresolved; compound mass cannot be computed as of 2026-09-13.

An unmatched retail price describes our matching coverage. It does not establish that a product is unavailable. The elemental cost calculator can apply the same EC100 formula to a price you supply.