What is this ingredient?

미국 FDA 물질 등록 · UNII LMI26O6933 · 등록명 ALUMINUM OXIDE · 단일 화학물질

All ingredients

Ingredient Dictionary

ALUMINA

How much products actually contain

No product states its amount yet.

Of the products containing it, 1,052 list it before the 1% line and 307 after it (usually 1% or less).

Products using this ingredient

12 of 1,342 confirmed · likeliest to carry enough first · See all 1,342

Definition

US FDA substance register · UNII LMI26O6933 · registered name ALUMINUM OXIDE · single chemical substance

Source: US FDA Unique Ingredient Identifier (UNII)

Cosmetic roles

Absorbs water or oilABSORBENTMakes a clear formula opaqueOPACIFYINGAdjusts thicknessVISCOSITY CONTROLLINGAdds bulkBULKINGScrubs physicallyABRASIVEStops powders from cakingANTICAKING

Safety & regulatory references

Allowed colourant: United States

Source: US FDA color additives · US FDA prohibited and restricted ingredients

Not classified under Korea’s toxic-substance GHS list · existing chemical substance

Source: Korea toxic substances GHS register (NIER)

Other restriction: ban substances that deplete the ozone layer

Source: EU CosIng ingredient list

Reviewed by CIR: Safety Assessment of Alumina and Aluminum Hydroxide as Used in Cosmetics

Source: US Cosmetic Ingredient Review (CIR)

More data — names, identifiers, properties, test records, literature

Official labels & definitions

JCIA labelling name アルミナ: 本品は、アルミニウムの酸化物であり、次の化学式で表される。

Source: JCIA labelling names (Japan)

Names & identifiers

ALUMINAINCI알루미나Korean label name (MFDS standard)Aluminium oxide (Al2O3)SynonymアルミナJapanese labelling name

CAS No.chemical registry number: 1344-28-1
EC No.EU chemical inventory number: 215-691-6
DTXSIDUS EPA chemical ID: DTXSID2041593

Measured properties

Appearance: Aluminum oxide is a white odorless crystalline powder. Water insoluble. Properties (both physical and chemical) vary according to the method of preparation, different methods give different crystalline modifications. The variety formed at very high temperature is quite inert chemically. alpha-Alumina is the main component of technical grade alumina. Corundum is natural aluminum oxide. Emery is an · Dry Powder, Other Solid, Liquid, Large Crystals, Wet Solid, CBI, Gas Vapor
Odour: Odorless · odourless
Boiling point: 5396 °F at 760 mmHg (NIOSH, 2024) · 2977 °C
Melting point: 3632 °F (NIOSH, 2024) · 2030 °C
Solubility: Insoluble (NIOSH, 2024) · Difficult solubility in mineral acids and strong alkali
Density: 4 (NIOSH, 2024) - Denser than water, will sink · Density: 3.4-4.0
Colour: white
Melting/freezing point: 2054 ℃
Initial boiling point and range: 3000 ℃
Vapour pressure: 1 ㎜Hg (2158℃)
Water solubility: &amp, lt, 0.1 ㎎/ℓ
Relative density: 3.97
Molecular weight: 101.9

Values measured on the substance itself. The KOSHA data are a reference for writing and reviewing safety data sheets, not a specification for a commercial raw material.

Source: PubChem · KOSHA safety data sheets (Korea)

What products actually use it for

What the 297 products reported to the US EPA with this ingredient use it for. Products outside cosmetics are included, so the top few rows are its main uses.

Surface modifier38
Processing aids not otherwise specified38
Binder32
Filler24
Abrasive23
Pigment23
Degradant/impurity (EPA)18
Adsorbent10

36 other uses

Catalyst9
Opacifer6
Anti-adhesive/cohesive6
Chemical reaction regulator5
No specific technical function5
Anti-caking agent5
Viscosity modifier5
Plating agent4
Soil amendments4
Absorbent4
Intermediate3
Thickening agent3
Hardener2
Adhesion/cohesion promoter2
Photosensitive agent2
Flux agent2
Sizing agent2
Monomers2
Stabilizing agent2
Dehydrating agent (desiccant)2
Coalescing agent1
Heat stabilizer1
Softener and conditioner1
Sealant (barrier)1
Heat transferring agent1
pH regulating agent1
Diluent1
Flame retardant1
Cleaning agent1
Semiconductor and photovoltaic agent1
Anti-static agent1
Insulators1
Anti-slip agent1
Elasticizer1
Density modifier1
Conductive agent1

Source: US EPA CompTox dashboard

Irritation and sensitisation studies

3 skin studies and 3 eye studies are on record.

Classed as low3

The study conclusions largely agree (100%). These tests are on the raw material itself; irritation at the amount in a finished product is a different question.

See all 6 studies

Classification not possible
Skin Irritation · Screening
Studies Indicate No Significant Irritation
skin irritation: in vivo · Screening · OECD Guideline 404 (Acute Dermal Irritation / Corrosion) equivalent or similar to
Classification not possible
Skin Sensitization · Screening
Studies Indicate No Significant Irritation
eye irritation: in vivo · Screening · other guideline: FDA of the United States (Fed. Reg. 28 (119), 5582, 1963) Draize and Kelly (Drug Cosmet. Industr. 71 (1952) 36) according to
Classification not possible
Eye Irritation · Screening
Studies Indicate No Significant Irritation
eye irritation: in vivo · Screening · OECD Guideline 405 (Acute Eye Irritation / Corrosion) equivalent or similar to