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Magnesium alginate

CAS 37251-44-8

Concern score

Not assessed — no hazard data yet.

Magnesium alginate in plain language

What it is

Also known as Magnesium salt alginic acid

What it does

Used in cosmetics as a binder, an emulsion stabiliser and a thickener.

  • Binding
  • Emulsion stabilising
  • Viscosity controlling
  • Emulsifier
  • Thickener
Is it a concern?
We haven't assessed a concern score for this ingredient yet. It is listed for cosmetic use in the EU.

Regulation

No restrictions found. Magnesium alginate appears in these published regulatory listings.

Recorded in these product areas

  • Found in consumer products
  • Industrial
  • EUCosIngActiveListed in CosIng inventory for cosmetic use.
    • Listed in CosIng inventory for cosmetic use.Source →
  • USEPAcommercial use observedEPA CPDat observed this chemical in 0 composition records across product categories including unclassified products. EPA CPDat classifies this chemical for functional uses including Viscosity modifier, Emulsifier, Binder.
    • EPA CPDat observed this chemical in 0 composition records across product categories including unclassified products. EPA CPDat classifies this chemical for functional uses including Viscosity modifier, Emulsifier, Binder.Source →
  • USFDAlisted in openFDA substanceopenFDA substance registry classifies this ingredient as polymer.
    • openFDA substance registry classifies this ingredient as polymer.Source →

Expert safety opinions

No expert opinion on file for Magnesium alginate. These are the independent scientific bodies that assess ingredients like this one; we show an opinion only when a record we hold cites it.

  • 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.

Evidence & sources

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

5 data sources

Where this comes from

  • CosIng

    regulatory · updated 2026-09-23

    Open →
  • EPA Chemical and Products Database

    exposure · updated 2019-12-20

    Open →
  • EPA DSSTox Identifiers

    chemistry · updated 2025-12-29

    Open →
  • FDA GSRS UNII

    registry · updated 2026-02-26

    Open →
  • openFDA Substance

    registry · updated 2026-05-24

    Open →

Suitability

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

Fragrance avoidance

Nothing to weigh for this context yet.

No signal in this context

We have no published hazard signal for this ingredient, so we cannot say how it behaves in this context — that is missing evidence, not a clean result.

Where it has been recorded

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

Named organisations

1

Typical roles

BindingEmulsion stabilisingViscosity controllingEmulsifierThickener
See products using Magnesium alginate →