beauty
cleaning
food
industrial

Magnesium sulfate anhydrous

CAS 139939-75-6 · 40/100 · High conf.

Also registered as 3 other CAS numbers

849607-35-8 · 7487-88-9 · 18939-43-0

Magnesium sulfate anhydrous chemical structure

Concern score

40/100Moderate concern based on regulatory listings.

High confidence

Magnesium sulfate anhydrous in plain language

What it is: On cosmetic ingredient lists it appears as “Magnesium sulfate”.
Also known as Magnesium sulfate · Anhydrous magnesium sulfate · Sulfuric acid magnesium salt (1:1) · Magnesium sulphate anhydrous · MGSO4 · Arrosalt 2327
Show all 24 names
Epsom salt · Epsom salts · Mag sulf · Magnesium Sulfate In Plastic Container · Magnesium Sulphate A.R. · Magnesium sulfate in dextrose 5% in plastic container · Magnesium sulphate · Magnesium(II) sulfate · Magnesiumsulfat · Sal Angalis · Sal De sedlitz · Sulfuric acid magnesium salt · Tomix OT · magnesii sulfas · magnesium sulfate (1:1) · magnesium sulfate (epsom salts) · magnesium(2+) ion sulfate · Suprep bowel prep kit component magnesium sulfate anhydrous
What it does: Used in cosmetics as a bulking agent. Magnesium Sulfate is the inorganic salt.
Bulking
Nutrient supplement
Colourant
Thickener
Conditioner
Cleaning agent
Is it a concern?: Moderate concern: no hazard classifications on record. It is listed for cosmetic use in the EU.

Why it's flagged

EPA CPDat observed this chemical in 309 composition records across product categories including Construction and building materials, Furniture and furnishings, Laboratory supplies.

The score describes this ingredient's chemical identity — its hazard profile from published classifications and regulatory status — not the safety of any product it appears in.

Regulation

No restrictions found. Magnesium sulfate anhydrous appears in these published regulatory listings.

In marketed US drugs
Inactive ingredient in US drugs

Recorded in these product areas

Found in consumer products
Beauty
Cleaning
Industrial

EUCosIngActiveMagnesium Sulfate is the inorganic salt that conforms to the formula:
- Magnesium Sulfate is the inorganic salt that conforms to the formula:Source →
GLOBALJECFANOT SPECIFIEDJECFA evaluation lists ADI NOT SPECIFIED. Functional class: nutrient supplement.
- JECFA evaluation lists ADI NOT SPECIFIED. Functional class: nutrient supplement.Source →
USEPAcommercial use observedEPA CPDat observed this chemical in 309 composition records across product categories including Construction and building materials, Furniture and furnishings, Laboratory supplies. EPA CPDat classifies this chemical for functional uses including Viscosity modifier, Mineral - Source of magnesium, Filler.
- EPA CPDat observed this chemical in 309 composition records across product categories including Construction and building materials, Furniture and furnishings, Laboratory supplies. EPA CPDat classifies this chemical for functional uses including Viscosity modifier, Mineral - Source of magnesium, Filler.Source →
USFDAinactive ingredient databaseRoute: ORAL; Dosage form: CAPSULE; Potency: 29.8 mg
- Route: ORAL; Dosage form: CAPSULE; Potency: 29.8 mgSource →
USFDAmarketed drug occurrenceFDA NDC lists this ingredient in 7 active drug products and 7 total products.
- FDA NDC lists this ingredient in 7 active drug products and 7 total products.Source →
USFDAlisted in openFDA substanceopenFDA substance registry classifies this ingredient as chemical.
- openFDA substance registry classifies this ingredient as chemical.Source →

Expert safety opinions

Independent scientific assessments cited by the records we hold, with the year and link where the record gives one.

SCCS
EU Scientific Committee on Consumer Safety
No SCCS opinion on file.
CIR
Cosmetic Ingredient Review (US expert panel)
No CIR safety assessment on file.
JECFA
Joint FAO/WHO Expert Committee on Food Additives
- JECFA evaluation lists ADI NOT SPECIFIED. Functional class: nutrient supplement.
  Year not recorded · GLOBAL JECFA listing · Read the source →

Evidence & sources

No graded research studies for Magnesium sulfate anhydrous yet. This record is compiled from the published data sources below — registries and regulatory listings, not study findings.

9 data sources

Where this comes from

CosIng
regulatory · updated 2026-09-23
Open →
EPA Chemical and Products Database
exposure · updated september 30, 2013
Open →
EPA DSSTox Identifiers
chemistry · updated 2025-12-29
Open →
FDA Inactive Ingredient Database
regulatory · updated 2026-01-09
Open →
FDA National Drug Code Directory
regulatory · updated 2027-12-31
Open →
FDA GSRS UNII
registry · updated 2026-02-26
Open →
WHO JECFA Database
regulatory · updated 2026-10-04
Open →
openFDA Substance
registry · updated 2026-05-24
Open →
PubChem Live Enrichment
chemistry · updated 2026-05-17
Open →

Suitability

Context-specific fit derived from published classifications and the current ingredient evidence profile.

Food use

Food-use source coverage is present in the current record.

Good fit

The ingredient appears in food-oriented source coverage or allowed-use references, which makes food use easier to support than a context with no domain signal at all.

Fragrance avoidance

No fragrance-linked caution surfaced in the current profile.

Good fit

This ingredient does not currently read as a fragrance-linked driver in the published evidence and hazard profile.

Where it has been recorded

How often EPA CPDat has listed Magnesium sulfate anhydrous in a product composition. These are source records, not Greenveil catalog products.

Source records

309

Named organisations

Construction and building materialsFurniture and furnishingsLaboratory suppliesSpecialty occupational productsLandscape/yardPersonal care

Typical roles

BulkingNutrient supplementColourantThickenerConditionerCleaning agent

See products using Magnesium sulfate anhydrous →

Catalog

Found in these products

Their ingredient lists include Magnesium sulfate anhydrous; each product's own rating depends on its whole formula, so it is shown on the product page, not here.

See all 340 →Find products without it →