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Alginic acid

CAS 210888-24-7 · 40/100 · High conf.

Also registered as 6 other CAS numbers

545434-56-8 · 865838-47-7 · 865838-48-8 · 1444006-48-7 · 2010157-07-8 · 9005-32-7

Concern score

40/100Moderate concern based on regulatory listings.
High confidence

Alginic acid in plain language

What it is

Also known as Landalgine · Satialgine h · Alginate · Landalgine p · Medisorb a · Satialgine h 8

Show all 16 names

Acid Algin G 2 · Alginate LV · E-400 · Ins NO.400 · INS-400 · Kelacid · Norgine · Snow acid algin G · Verdyol Super · acidum alginicum

What it does

Used in cosmetics as a skin-conditioning agent, a binder and a thickener.

  • Skin conditioning
  • Binding
  • Viscosity controlling
  • Thickener, emulsifier, gelling agent, stabilizer
  • Emulsifier
  • Thickener
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 30 composition records across product categories including Personal care, Cleaning products and household care.

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. Alginic acid appears in these published regulatory listings.

  • Inactive ingredient in US drugs

Recorded in these product areas

  • Found in consumer products
  • Beauty
  • Cleaning
  • USFDAinactive ingredient database8 entries — 2 administration routes
    • Route: ORAL; Dosage form: TABLET; Maximum daily exposure: 128 mgSource →
    • Route: ORAL; Dosage form: TABLET, CHEWABLE; Potency: 400 mgSource →
    • Route: ORAL; Dosage form: TABLET, COATED; Potency: 60 mgSource →
    • Route: ORAL; Dosage form: TABLET, EXTENDED RELEASE; Maximum daily exposure: 89 mgSource →
    • Route: ORAL; Dosage form: CAPSULE, EXTENDED RELEASE; Maximum daily exposure: 10 mgSource →
    • Route: ORAL; Dosage form: CAPSULE; Maximum daily exposure: 160 mgSource →
    • Route: OPHTHALMIC; Dosage form: INSERT, EXTENDED RELEASE; Potency: 1 mgSource →
    • Route: ORAL; Dosage form: TABLET, FILM COATED; Potency: 52.8 mgSource →
  • EUEFSAEFSA opinion2 entries
    • Re-evaluation of propane-1,2-diol alginate (E 405) as a food additive (EFSA ANS)Source →
    • Re-evaluation of alginic acid and its sodium, potassium, ammonium and calcium salts (E 400-E 404) as food additives (EFSA ANS)Source →
  • USFDAlisted in openFDA substance2 entries
    • openFDA substance registry classifies this ingredient as polymer.Source →
    • openFDA substance registry classifies this ingredient as concept.Source →
  • EUCosIngActiveListed in CosIng inventory for cosmetic use.
    • Listed in CosIng inventory for cosmetic use.Source →
  • GLOBALJECFANOT SPECIFIEDJECFA evaluation lists ADI NOT SPECIFIED. Functional class: thickener, emulsifier, gelling agent, stabilizer.
    • JECFA evaluation lists ADI NOT SPECIFIED. Functional class: thickener, emulsifier, gelling agent, stabilizer.Source →
  • USEPAcommercial use observedEPA CPDat observed this chemical in 30 composition records across product categories including Personal care, Cleaning products and household care. EPA CPDat classifies this chemical for functional uses including Viscosity modifier, Softener and conditioner, Binder.
    • EPA CPDat observed this chemical in 30 composition records across product categories including Personal care, Cleaning products and household care. EPA CPDat classifies this chemical for functional uses including Viscosity modifier, Softener and conditioner, Binder.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.

  • EFSA

    European Food Safety Authority

    • Re-evaluation of propane-1,2-diol alginate (E 405) as a food additive (EFSA ANS)

      2018 · EU EFSA listing · Read the source →

    • Re-evaluation of alginic acid and its sodium, potassium, ammonium and calcium salts (E 400-E 404) as food additives (EFSA ANS)

      2017 · EU EFSA listing · Read the source →

  • JECFA

    Joint FAO/WHO Expert Committee on Food Additives

    • JECFA evaluation lists ADI NOT SPECIFIED. Functional class: thickener, emulsifier, gelling agent, stabilizer.

      Year not recorded · GLOBAL JECFA listing · Read the source →

Evidence & sources

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

8 data sources

Where this comes from

  • CosIng

    regulatory · updated 2026-09-23

    Open →

  • EFSA OpenFoodTox

    regulatory · updated 2026-10-04

    Open →

  • EPA Chemical and Products Database

    exposure · updated November 2014

    Open →

  • EPA DSSTox Identifiers

    chemistry · updated 2025-12-29

    Open →

  • FDA Inactive Ingredient Database

    regulatory · updated 2026-01-09

    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 →
Reference links (2)
Openfda substance

codexalimentarius.net

Read →
Openfda substance

chemicalbook.com

Read →

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 Alginic acid in a product composition. These are source records, not Greenveil catalog products.

Source records

30

Named organisations

6

Personal careCleaning products and household care

Typical roles

Skin conditioningBindingViscosity controllingThickener, emulsifier, gelling agent, stabilizerEmulsifierThickener
See products using Alginic acid →

Catalog

Found in these products

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

See all 33 →Find products without it →