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Purified to USP specifications. Documented quality.
The mineral origin, concentrated liquid formula, testing and customer history behind our original 12 fl oz Magnesium Oil Spray.
12 fl oz / 355 mL · 1M+ units on Amazon.com · Dermatest “Excellent”
US mineral sourcing, directly extracted liquid brine, USP-process ingredient testing and more than a decade of customer history.
Seven Minerals sources its magnesium chloride from an ancient Permian seabed in the southern United States, associated with geological formations dating back approximately 250 million years. The mineral liquid is extracted from a deep underground well and processed by Magnesium Products Inc.
Other established magnesium spray brands publicly identify mineral sources in Europe’s Zechstein deposits or the Middle East’s Dead Sea. Bottling in the USA does not, by itself, establish American mineral origin.
Source and scope. Seven Minerals’ mineral-origin and geological-age information; Magnesium Products Inc. product description and reviewed competitors’ published origins. The age is an approximate geological characterization, not dating of the individual well. This is not an “only US-mined brand” claim.
Our magnesium chloride begins as a naturally concentrated underground liquid, rather than a product prepared by dissolving dry magnesium chloride salts or flakes in water. Magnesium Products Inc. filters and purifies the sourced brine.
According to Seven Minerals’ supplier-process confirmation, no additional water is added to this mineral liquid. Flake-based formulations can also be concentrated; their final strength depends on how they are prepared.
Source and scope. Seven Minerals’ supplier-process confirmation. Liquid extraction is a meaningful sourcing distinction, not proof that every flake-based spray is weaker.
A naturally concentrated liquid: its strength varies by batch, and every spray has a practical amount of elemental magnesium.
Magnesium Products Inc. specifies 28.1–31.3% magnesium chloride (MgCl₂) in its USP Process Liquid. The same mineral content can be expressed as 60.0–66.8% magnesium chloride hexahydrate (MgCl₂·6H₂O). These are two chemical expressions of one concentration—not two ingredients.
Natural batches vary. A December 2025 supplier certificate of analysis (COA) reported 61.7% as hexahydrate, approximately 28.9% MgCl₂ on the same mass basis, and specific gravity 1.28. This representative lot is consistent with approximately 33,000 mg elemental magnesium per 12 oz bottle.
WHAT THE NUMBERS MEAN
*Seven Minerals’ current per-spray product specification; amount applied, not demonstrated absorption. **Rounded estimate based on a representative supplier-lot assay, density and 355 mL bottle volume, assuming the liquid is bottled without dilution. Actual natural-lot content varies.
Source and scope. Magnesium Products Inc. published concentration range and 31 Dec 2025 ingredient COA. The 12–15 mg per spray figure is Seven Minerals’ current pump-output specification; mg applied to skin does not equal mg absorbed.
“Magnesium Oil Spray” is the product name for a highly concentrated water-based magnesium chloride solution. Its characteristic slippery feel does not come from adding a carrier oil.
Water occurs naturally in underground brine. “No additional water added” describes the supplier’s processing of the sourced brine; it does not mean the finished solution is water-free. Our original formula is unscented and does not add fragrance or essential oils.
Source and scope. Seven Minerals’ current formula/supplier-process description and original Magnesium Oil Spray product information.
A published USP-process ingredient specification and the actual measurements from one supplier lot.
Our magnesium chloride ingredient is supplied as Magnesium Chloride USP Process Liquid. The December 2025 ingredient COA documents tests conducted according to the current United States Pharmacopeia (USP) magnesium chloride monograph, including identification, assay and specified impurity checks.
Magnesium Products Inc. describes its quality and technical capabilities. According to Seven Minerals’ manufacturer clarification, the facility and its processes operate under certified controls, with periodic government-agency reviews of processing and test documentation.
Source and scope. Manufacturer materials, Seven Minerals’ supplier clarification and the supplier COA dated 31 Dec 2025. USP-process ingredient testing is distinct from the USP Verified product mark or injectable approval of the finished topical spray.
The supplier’s December 31, 2025 COA gives lot-specific measurements of the magnesium chloride liquid before finished-product bottling.
| Test or property | Reported result |
|---|---|
| Magnesium and chloride identification | Pass / Pass |
| Magnesium chloride assay (as hexahydrate) | 61.7% (limit 60.0–66.8%) |
| pH / specific gravity | 6.2 / 1.28 |
| Calcium | 0.0025% |
| Aluminum | 0.122 ppm (stated criterion: 0.67 ppm) |
| Heavy metals (aggregate test) | <0.001% |
| Sulfate / insoluble matter | Each <0.005% |
Source and scope. Private supplier COA, lot MGUSP1812085 (31 Dec 2025). These are ingredient-lot results; “below a limit” does not mean absolute zero. The certificate does not claim independent third-party testing of every finished bottle.
A practical scientific comparison with magnesium sulfate (Epsom salt), focused on concentrated topical formulation.
Magnesium chloride is particularly suited to a highly concentrated, ready-to-use Magnesium Oil Spray. Magnesium sulfate is commonly offered as Epsom salt crystals for a bath or foot soak. Both minerals have legitimate uses, but the formulation requirements differ.
Source and scope. Chemical solubility and hygroscopicity references; elemental-magnesium percentages calculated from the respective anhydrous chemical formulas. This is a formulation comparison, not a claim of superior clinical outcomes.
Well suited to concentrated liquid spray preparations.
Helps explain the characteristic oil-like feel of concentrated magnesium chloride solutions.
By mass in the pure anhydrous salt.
Most familiar to consumers as Epsom salt bath or foot-soak crystals.
Less strongly hygroscopic under typical comparison conditions.
By mass in the pure anhydrous salt.
American-mined mineral, Texas bottling and documented recycled bottle material.
The original 12 fl oz Seven Minerals Magnesium Oil Spray is bottled in Texas, USA. Its clear bottle body is specified as 100% post-consumer recycled (PCR) PET.
An August 2026 packaging invoice identifies “12oz clear 100% PCR PET Bullet bottle”; related October 2026 logistics records document delivery of 100,800 clear 12 oz PCR PET bottle bodies to our Texas bottling operation.
The 100% recycled-content claim applies to the bottle body—not the sprayer, closure, label or every bottle used historically.
Source and scope. Seven Minerals bottling confirmation and private packaging invoice and shipping records from Aug–Oct 2026. Supplier, freight and other commercial identities remain confidential.
Amazon.com transaction history and a dated snapshot of customer ratings.
The original 12 oz Magnesium Oil Spray, ASIN B00Q78C1EW, has been listed on Amazon.com since November 26, 2014. Amazon transaction records document 1,493,635 Amazon.com units ordered from September 22, 2016 through September 5, 2026 alone.
Sales from late 2014 through September 21, 2016 are not included in that count. Therefore, “more than 1 million units sold on Amazon.com since 2014” is a conservative milestone supported by the available records.
Source and scope. Seven Minerals Amazon Custom Unified Transaction analysis and confirmed SKU/ASIN mapping. “Units” are not unique customers; recorded refunds are a separate transaction measure.
The Amazon.com listing screenshot supplied in October 2026 shows 38,993 customer ratings with a 4.3-star average for the linked original Magnesium Oil Spray listing.
The same snapshot displays “10K+ bought in past month.” This is a date-sensitive recent-purchase label—not a lifetime unit-sales total.
Source and scope. Amazon.com screenshot supplied by Seven Minerals, October 2026. Amazon may combine ratings across variation listings. Ratings are not the same as written reviews or unique purchasers. Counts and averages change over time.
Two independent marketplace measures: category sales rank and exact-search purchase share.
From January 2020 through September 2026, the original 12 oz Magnesium Oil Spray recorded the best monthly median Amazon Health & Household Best Sellers Rank in 77 of 81 completed months (95.1%) in a defined four-listing comparison.
It also had the best annual median rank in the tracked set in each completed year from 2020 through 2025.
Source and scope. Keepa monthly and yearly rank summaries retrieved Oct 2, 2026. Comparison: Seven Minerals 12 oz, Essentially Based 8 oz, Life-Flo 8 oz and BetterYou 3.4 oz. Ancient Minerals and ASUTRA have a different main-category rank scale. Rank is not a sales-unit tally.
For the exact Amazon.com query “magnesium oil spray,” a Seven Minerals Magnesium Oil Spray had or shared the highest purchase share among the three most-clicked ASINs in 36 of 44 reported months from January 2023 through August 2026.
The original 12 oz led or tied in 35 of those months; the 2 oz led January 2023. The 12 oz led 11 of the last 12 reported months (September 2025–August 2026). February 2025 was tied.
Source and scope. Amazon Brand Analytics Top Search Terms via Helium 10, retrieved Oct 8, 2026. Oct 2024 and Jul 2026 are based on weekly reports where monthly data are unavailable. The statistic applies to the exact search phrase and top-three-clicked ASINs, not the total US magnesium market.
Attributable editorial selections with direct links to the original guides.
Seven Minerals Pure Magnesium Oil Spray has received the editorial selections below. These are publisher best-pick designations, not formal industry awards, laboratory certifications or evidence of clinical treatment effects.
Source and scope. Original publisher articles, viewed and recorded in 2026. Article dates and best-pick language are attributed to the publication; updated pages may change.
August 2026 · Yahoo syndication
Read the selectionThe people and community commitments behind Seven Minerals.
Seven Minerals is a family-owned brand. Our original Magnesium Oil Spray focuses on a straightforward unscented magnesium chloride solution instead of a fragranced botanical blend.
Seven Minerals describes the formula as vegan. This is a company ingredient/formula statement, not a claim of third-party vegan certification.
Source and scope. Seven Minerals company, magnesium product and formula information.
Seven Minerals has supported Sea Turtle, Inc. in South Padre Island, Texas, helping its work in sea-turtle rescue, rehabilitation and conservation.
Company payment records document US$41,500 donated from November 2020 through August 2026.
Source and scope. Seven Minerals company payment records previously summarized in “Our Aloe. The Facts.” v1.8. Donations are company-wide historical totals, not a per-bottle promise or endorsement by the charity.
Confirmed product sizes, GTINs and retail links for the original Magnesium Oil Spray.
This page identifies the original unscented Pure Magnesium Oil Spray separately from Kids Magnesium Spray, scented blends, creams and body butters.
Source and scope. Seven Minerals product records; Walmart Week 40, 2026 distribution report; linked retailer pages. Store distribution does not guarantee that each store has on-shelf stock.
A finished-product human patch test—not the ingredient supplier’s chemical assay.
30 participants · No reactions recorded in the defined test · 2020
Dermatest GmbH in Germany evaluated Seven Minerals Magnesium Oil Spray in a dermatological patch test and awarded it an “Excellent” rating on August 28, 2020.
The undiluted product was tested on 30 adult participants. No skin reactions were recorded at the 24-, 48- and 72-hour assessments.
Source and scope. Dermatest eight-page human patch-test report and certificate dated Aug 28, 2020. The result applies to the formulation tested in 2020; it does not guarantee that no consumer will ever experience irritation.
SkinSAFE and Yuka assess ingredient information, rather than performing the Dermatest human patch test.
The SkinSAFE product entry for Seven Minerals Pure Magnesium Oil Spray, 12 fl oz / 355 mL, displays “SkinSAFE 100.” The platform describes this result in relation to its screening for 11 common allergens.
The captured product listing shows ingredient information last updated March 11, 2026.
Source and scope. Seven Minerals’ SkinSAFE product-entry screenshot. This is an ingredient-screening assessment—not an impurity COA, a guarantee for every skin type or a Mayo Clinic product endorsement.
The Yuka app entry for Seven Minerals Magnesium Oil Spray shows 100/100, “Excellent”, with magnesium chloride shown in Yuka’s green “Risk-free” ingredient classification.
The Yuka score describes the platform’s evaluation of the listed ingredient(s). It does not measure the product’s magnesium concentration, trace impurities, or clinical effectiveness.
Source and scope. Yuka entry screenshot supplied by Seven Minerals, October 2026. Platform ratings can change; the app product-entry label may be abbreviated.
Seven Minerals retains ingredient COAs, manufacturer-origin confirmations, 100% recycled-content packaging records, Amazon.com transaction history, Keepa rank summaries, exact-query purchase-share analysis, the Dermatest study and the recorded SkinSAFE and Yuka entries.
Each numerical claim retains the date and scope of its underlying source. We do not publish confidential supply-chain identities or private transaction records.
Source and scope. Seven Minerals public fact-sheet documentation register, November 12, 2026.
