Label arithmetic · NIH DSLD 245277

Teraputics Pure Life Magnesium L-Threonate

Teraputics Pure Life Magnesium L-Threonate was observed at $29.95 on 2026-08-10, which is $0.06 per 100 mg of elemental magnesium; NIH DSLD 245277, label dated 2021-03-25, calculation 2026-09-13.

Mass budget · computed; capsule comparison · modelled

What the declared salt would weigh

Teraputics Pure Life Magnesium L-Threonate declares 144 mg of elemental magnesium per serving in NIH DSLD 245277, requiring 1,745.45 mg of magnesium l-threonate under the salt model calculated 2026-09-13.

Elemental-to-compound conversion for NIH DSLD 245277
StepValueEvidence
Declared elemental magnesium144 mg per servingobserved · label 2021-03-25
Resolved saltMagnesium L-threonate · label-rowcomputed · name resolved from filed text
Reference formulaMg(C₄H₇O₅)₂; 294.5 g/molcomputed · chemical reference
Elemental fraction8.25% by masscomputed
Compound mass per serving1,745.45 mg = 144 mg ÷ elemental fractioncomputed
Compound mass per discrete unit436.36 mgcomputed

At powder density 0.6–0.8 g/mL, 436 mg of powder fits a size 0 capsule (holds about 545 mg).

The verdict uses the most favourable reading for the product — the smallest compound mass the label allows. It excludes the shell and other ingredients; their unreported masses are not added as guesses.

Size 0 holds about 545 mg, size 00 about 730 mg, and size 000 about 1,100 mg at powder density 0.6–0.8 g/mL. These are model inputs, not measurements of this product's capsule. Read the mass-budget method.

Label facts and derived measurements

The numbers for this label

Teraputics Pure Life Magnesium L-Threonate has 14 published fields below, traced to NIH DSLD 245277 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 identifier245277observed
Resolved saltMagnesium L-threonatecomputed
Source of the resolved saltlabel-rowobserved
Elemental magnesium per serving (mg)144observed
Servings per container25observed
Elemental magnesium per container (mg)3600computed
Compound mass per discrete unit436.36 mgcomputed
Capsule fill verdictfits-0modelled
Required standard capsule size0modelled
Label date2021-03-25observed
Retail match confidencelegacy-provisionalcomputed
Observed container price (USD)29.95observed
Price observation date2026-08-10observed
Cost per 100 mg elemental (USD)0.0599computed

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

Teraputics Pure Life Magnesium L-Threonate retains 2 magnesium-related rows in NIH DSLD 245277, including 1 rows selected for the primary serving, from label 2021-03-25, examined 2026-09-13.

Filed amounts, salt names and serving order
Filed amountServing orderFiled salt / notesCalculation role
144 mg1threonate

Magnesium (Form: from Magnesium L-Threonate)

Selected primary serving
2000 mg1Salt not identified in this row as of 2026-09-13Other nutrient or serving row; excluded from primary amount

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 threonate

Teraputics Pure Life Magnesium L-Threonate's $0.0599 per 100 mg of elemental magnesium is at percentile 67 among 3 threonate labels with observed prices, using confirmed gold-set matches observed 2026-08-10 to 2026-09-07, calculated 2026-09-13.

Price and comparison within threonate
Observed item price · Amazon$29.95 on 2026-08-10
Cost per 100 mg elemental$0.0599
Observed prices in threonate3 confirmed matches
Percentile67
Match confidencelegacy-provisional

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

Teraputics Pure Life Magnesium L-Threonate files 25 servings per package, with no complete daily-frequency range for computing days, according to label 2021-03-25, calculated 2026-09-13.

Arithmetic using the label's own serving, not intake advice
Net contents as filed100 Vegan Capsule(s)
Discrete units in the package100
Serving size as filed4 Vegan Capsule(s)
Units per serving4
Servings per package25
Daily servings in the label instructionsComplete daily-frequency range not filed as of 2026-09-13
Days per package at the label's own servingDays not computable from filed frequency and serving count as of 2026-09-13
Price per serving$1.1980 · computed from price observed 2026-08-10

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

Teraputics Pure Life Magnesium L-Threonate files 1 magnesium percent-daily-value entries in NIH DSLD 245277; the check below applies the group-specific references in 21 CFR 101.9 to its 144 mg primary serving, calculated 2026-09-13.

Declared values and current-reference arithmetic
Group as filedDeclaredReferenceRecomputedDifference
Adults and children 4 or more years of age34%420 mg34%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

Teraputics Pure Life Magnesium L-Threonate lists 2 other ingredients in NIH DSLD 245277, label dated 2021-03-25, examined 2026-09-13.

Other ingredients as filed
EntryIngredient
1Hypromellose
2Rice Flour

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

Teraputics Pure Life Magnesium L-Threonate has 4 target-group entries in NIH DSLD 245277, label dated 2021-03-25, examined 2026-09-13.

Manufacturer-filed target groups
EntryFiled group
1Adult (18 - 50 Years)
2Gluten Free
3Dairy Free
4Sugar Free

Provenance · observed

Registry record, versions and scanned label

Teraputics Pure Life Magnesium L-Threonate is identified by 1 NIH DSLD record, 245277, according to the retained record examined 2026-09-13; the label date is 2021-03-25.

Source record for Teraputics Pure Life Magnesium L-Threonate
NIH DSLD labelNIH DSLD 245277
Registry snapshot2026-08-10
Label date2021-03-25
Physical stateCapsule
Barcode as filedX001Q9O7VN
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.