Label arithmetic · NIH DSLD 180155
Complete H2O Minerals Magnesium Concentrate: 18 mg of magnesium per serving
18 mg of magnesium per serving. Chloride is 12.0–25.5% magnesium; no US price matched (Nov 2). Inside: salt per scoop, %DV check.
Complete H2O Minerals Magnesium Concentrate declares 18 mg of elemental magnesium per serving as chloride, which means 71–151 mg of magnesium chloride compound in one 0.33–1 tbsp (5-15ml), compared with 1,100 mg in the largest standard capsule; capsule verdicts do not apply to this liquid. No US retail price matched as of 2026-11-02; 0 of the 10 chloride labels in this registry have a matched price. NIH DSLD 180155, label dated 2018-08-31.
computed from the filed label
Chart data
| Displayed chart text |
|---|
| gluconate |
| 307 |
| orotate |
| 248 |
| L-threonate |
| 218 |
| taurate |
| 202 |
| lactate |
| 150 |
| glycerophosphate |
| 144 |
| glycinate |
| 128 |
| malate |
| 116 |
| aspartate |
| 115 |
| citrate |
| 111 |
| sulfate |
| 89 |
| chloride |
| 71 |
| carbonate |
| 62 |
| hydroxide |
| 43 |
| oxide |
| 30 |
Data release 2026-08-10-f441aa9f · registry snapshot 2026-08-10 · latest price observation 2026-10-19 · chemistry 2026-10-17
Mass: 71–151 mg per serving · Price: none matched · % DV: 20% vs 4%
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 chloride compound is in one serving?
Complete H2O Minerals Magnesium Concentrate carries 71–151 mg of magnesium chloride per serving for 18 mg of elemental magnesium, against 1,100 mg in the largest standard capsule; capsule capacities do not apply to this liquid.
computed with assumption| Measure | Value |
|---|---|
| Elemental magnesium per serving | 18 mg |
| Units per serving | Not a discrete unit as of 2026-11-02 |
| Magnesium chloride per serving | 71–151 mg |
| Magnesium chloride per serving | Not computable as of 2026-11-02 |
| Capsule capacity 0 · 00 · 000 | 545 · 730 · 1,100 mg |
| Verdict | Capsule sizes do not apply |
The filed salt can have more than one hydration state (anhydrous 25.5%, hexahydrate 12.0%), so the compound mass is a range.
Source · NIH DSLD 180155 · label 2018-08-31; snapshot 2026-08-10 · release 2026-08-10-f441aa9f · CSV · method
How much elemental magnesium is actually in this label's filed magnesium lines?
Complete H2O Minerals Magnesium Concentrate files 1 magnesium line in NIH DSLD 180155; the selected primary line declares 18 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 |
|---|---|---|
| 18 mg | Salt not named in this row; magnesium chloride is taken from the label text | Primary serving |
Source · NIH DSLD 180155 · label 2018-08-31; snapshot 2026-08-10 · release 2026-08-10-f441aa9f · CSV · method
Does this label's chloride claim hold up, or could the magnesium come from another source?
The label names one magnesium form, chloride, resolved from the full NIH DSLD record text; capsule capacities do not apply to this form, compared with oxide, the salt richest in magnesium at 60.3%.
computed with assumption| Form named on the label | Elemental fraction | Source |
|---|---|---|
| Magnesium chloride | 12.0–25.5% | full NIH DSLD record text |
Source · NIH DSLD 180155 · label 2018-08-31; 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; 0 of 10 chloride labels have one, against a median of none per 100 mg among 0 ranked chloride offers.
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 Complete H2O Minerals Magnesium Concentrate as of 2026-11-02: the filed directions give no complete daily frequency.
computed| Measure | Value |
|---|---|
| Net contents as filed | 32 Oz(s); 1 Quart(s); 946 mL |
| Serving size as filed | 0.33–1 Tbsp (5-15mL) |
| Servings per container | 64 |
| 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 180155 · label 2018-08-31; snapshot 2026-08-10 · release 2026-08-10-f441aa9f · CSV · method
What does "20% Daily Value" mean here, and does it recompute?
The label declares 20% Daily Value; 18 mg against the 420 mg reference in 21 CFR 101.9 recomputes to 4%, a difference of 16 points. Labels filed under the earlier 400 mg reference, or with a different filing basis, show gaps of this kind.
computed
Chart data
| Displayed chart text |
|---|
| Declared vs recomputed % |
| DV |
| 4 · 20 |
| Declared vs |
| recomputed % DV |
| Group as filed | Declared | Reference | Recomputed |
|---|---|---|---|
| Adults and children 4 or more years of age | 20% | 420 mg | 4% |
Source · NIH DSLD 180155; 21 CFR 101.9 · label 2018-08-31 · 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?
Complete H2O Minerals Magnesium Concentrate files 3 other ingredients, and no magnesium stearate, against 3 of 10 chloride labels that list magnesium stearate.
measured| Entry | Filed ingredient or declaration |
|---|---|
| 1 | purified Water |
| 2 | Magnesium Chloride |
| 3 | Benzoic Acid |
| Target group | Adult (18 - 50 Years) |
| Target group | Children (All) |
Source · NIH DSLD 180155 · label 2018-08-31; snapshot 2026-08-10 · release 2026-08-10-f441aa9f · CSV · method
What has research measured about chloride, and about side effects?
3 studies in the PubMed-checked registry measured outcomes involving chloride; none reports a gastrointestinal outcome as of 2026-11-02. They measured the salt, not this label.
measured| Year | Study | PubMed |
|---|---|---|
| 2005 | Study of magnesium bioavailability from ten organic and inorganic Mg salts in Mg-depleted rats using a stable isotope approach | 16548135 |
| 2001 | Bioavailability of US commercial magnesium preparations | 11794633 |
| 1992 | Blood and urinary magnesium kinetics after oral magnesium supplements. | 1468087 |
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?
Complete H2O Minerals has 0 FDA recall records matched by brand name in the enforcement data queried 2026-10-19. Complete H2O Minerals 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 180155 · label 2018-08-31; 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 180155 · label 2018-08-31; 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 180155 (label 2018-08-31, snapshot 2026-08-10) and the chemistry model of 2026-09-13. 1 gap remain: No US retail price matched as of 2026-11-02 (barcode 1 88671 00042 7). The CSV carries the values shown here.
measured| Field | As filed |
|---|---|
| NIH DSLD label | NIH DSLD 180155 |
| Label date | 2018-08-31 |
| Date entered into DSLD | 2018-08-31 |
| Barcode (UPC) as filed | 1 88671 00042 7 |
| Label version · Package size difference, same product | NIH DSLD 180157 |
| Label version · Package size difference, same product | NIH DSLD 252064 |
| Manufactured for: | Complete H2O Minerals, West Columbia, SC |
| Claim category as filed | Nutrient |
14 additional rows
| Field | As filed |
|---|---|
| Claim category as filed | All Other |
| Claim category as filed | Structure/Function |
| Formula re: Contains | In a recent study of over 39,000 women, Magnesium was shown to play a role in keeping healthy bones strong. |
| General Statements: All Other Content | Our water undergoes a six step purification process; reverse osmosis, deionization, ozonation, charcoal filtration, dual micron filtration and ultra violet light sterilization. RDA guidelines are observed. |
| FDA Disclaimer Statement | Disclaimer: These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, prevent or cure any disease. |
| General Statements: All Other Content | Quality products for a quality life! |
| FDA Statement of Identity | Dietary Supplement |
| Storage | For best results, store in a cool, dark place and use within six months. |
| Suggested/Recommended/Usage/Directions | For best results, store in a cool, dark place and use within six months. |
| Precautions re: All Other | Note: Do not use if tamper seal is broken or missing. |
| Precautions re: All Other | Complete H2O Minerals contain no fillers or artificial ingredients. |
| Suggested/Recommended/Usage/Directions | Recommended Dosage: Adults: 1 Tbsp. 18 mg Children: 1 Tsp. 6 mg or as recommended by a health care professional. |
| Physical state | Liquid |
| Registry snapshot | 2026-08-10 |
Source · NIH DSLD 180155 · label 2018-08-31; 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.