Aluminum Stearate
AKA “Aluminum stearate 300, Dibasic aluminium stearate, Aluminium, dihydroxide stearate, P9BC99461E, Aluminum, dihydroxy(octadecanoato-O-)-, RefChem:556666, ALUMINUM MONOPALMITOSTEARATE, (octadecanoyloxy)alumanylidene dihydrate, 3A60N020Z7, 230-325-5”
Colorant
Ingredient Facts
Aluminum stearate
AKA: Aluminum stearate 300, Dibasic aluminium stearate, Aluminium, Dihydroxide stearate, P9BC99461E, Dihydroxy(octadecanoato-O-)-, RefChem:556666, ALUMINUM MONOPALMITOSTEARATE, (octadecanoyloxy)alumanylidene dihydrate, 3A60N020Z7, 230-325-5
Colorant · Emulsion Stabilising · EWG: 1
Plant-Derived
Colorant
Emulsifier
Plant Oil
Clean
Aluminium monostearate is a salt of stearic acid and aluminium with the molecular formula Al(OH)2C18H35O2. Also known as dihydroxyaluminium or dihydroxy(stearato)aluminium, it is used to form gels in the packaging of pharmaceuticals and in the preparation of colors for cosmetics. While considered safe for use, extensive usage may result in aluminum accumulation.
Formula
C18H37AlO4
Mol. Weight
344.50
CAS #
7047-84-9
Form
Wax
See origin →
Functions
Anticaking
Colorant
Gives the product its color. Purely aesthetic — makes the formula look good in the jar but does nothing for your skin.
Emulsion Stabilising
Forces oil and water to stay mixed instead of separating into layers. The unsung hero holding your lotion together.
Viscosity Controlling
Prevents Clumping
Adds Color
Stabilizes Emulsion
Controls Viscosity
Keeps Formula Blended
Traditional Use
Synthetic aluminum salt developed in the 20th century as a thickening and suspending agent for cosmetics. Created to replace soap-based thickeners with more stable formulations.
Skin Types
●all-skin-types, gentle
Best For
General
Pregnancy & Breastfeeding Safe
Yes
EWG
1
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
ewg-1
medical-approval
pregnancy-nursing-safe
all-shades-safe
Concentration Guide
14%
0%20%
Reg. Limit
SCCS maximum safe concentration: 14%. Product type: cosmetic products. Source: SCCS Opinion SCCS/1626/20.
Regulatory Agencies
Aluminum Starch Octenylsuccinate.
Akinsulie A, Bergfeld WF, Belsito DV, Hill RA, Klaassen CD et al.
International journal of toxicology, 2023
Aluminum Starch Octenylsuccinate.
Akinsulie A, Bergfeld WF, Belsito DV, Hill RA, Klaassen CD et al.
International journal of toxicology, 2023
Aluminum Starch Octenylsuccinate.
Akinsulie A, Bergfeld WF, Belsito DV, Hill RA, Klaassen CD et al.
International journal of toxicology, 2023
Aluminum Starch Octenylsuccinate
Cosmetic Ingredient Review (CIR) Expert Panel
International Journal of Toxicology
Final Report of the Safety Assessment of Lithium Stearate, Aluminum Distearate, Aluminum Stearate, Aluminum Tristearate, Ammonium Stearate, Calcium Stearate, Magnesium Stearate, Potassium Stearate, So
Cosmetic Ingredient Review (CIR) Expert Panel
International Journal of Toxicology
Final Report on the Safety Assessment of Aluminum Silicate, Calcium Silicate, Magnesium Aluminum Silicate, Magnesium Silicate, Magnesium Trisilicate, Sodium Magnesium Silicate, Zirconium Silicate, Att
Cosmetic Ingredient Review (CIR) Expert Panel
International Journal of Toxicology
Final Report on the Safety Assessment of Aluminum Starch Octenylsuccinate
Cosmetic Ingredient Review (CIR) Expert Panel
International Journal of Toxicology
Final Report on the Safety Assessment of Silica, Alumina Magnesium Metasilicate, Aluminum Calcium Sodium Silicate, Aluminum Iron Silicates, Hydrated Silica and Potassium Aluminum Silicate
Cosmetic Ingredient Review (CIR) Expert Panel
International Journal of Toxicology
Safety Assessment of Alumina and Aluminum Hydroxide as Used in Cosmetics
Cosmetic Ingredient Review (CIR) Expert Panel
International Journal of Toxicology
Aluminum Calcium Sodium Silicate
European Commission
EU Cosmetic Ingredient Database (CosIng)
Aluminum Citrate
European Commission
EU Cosmetic Ingredient Database (CosIng)
Aluminum Dilinoleate
European Commission
EU Cosmetic Ingredient Database (CosIng)
Aluminum Dimyristate
European Commission
EU Cosmetic Ingredient Database (CosIng)
Aluminum Distearate
European Commission
EU Cosmetic Ingredient Database (CosIng)
Aluminum Iron Calcium Magnesium Germanium Silicates
European Commission
EU Cosmetic Ingredient Database (CosIng)
Aluminum Iron Calcium Magnesium Zirconium Silicates
European Commission
EU Cosmetic Ingredient Database (CosIng)
Aluminum Iron Silicates
European Commission
EU Cosmetic Ingredient Database (CosIng)
Aluminum Isostearate
European Commission
EU Cosmetic Ingredient Database (CosIng)
Aluminum Isostearates/Laurates/Palmitates
European Commission
EU Cosmetic Ingredient Database (CosIng)
Aluminum Isostearates/Laurates/Stearates
European Commission
EU Cosmetic Ingredient Database (CosIng)
Aluminum Isostearates/Myristates
European Commission
EU Cosmetic Ingredient Database (CosIng)
Aluminum Isostearates/Palmitates
European Commission
EU Cosmetic Ingredient Database (CosIng)
Aluminum Isostearates/Stearates
European Commission
EU Cosmetic Ingredient Database (CosIng)
Aluminum Lanolate
European Commission
EU Cosmetic Ingredient Database (CosIng)
Aluminum Myristate
European Commission
EU Cosmetic Ingredient Database (CosIng)
Aluminum Myristates/Palmitates
European Commission
EU Cosmetic Ingredient Database (CosIng)
Aluminum Silicate
European Commission
EU Cosmetic Ingredient Database (CosIng)
Aluminum Stearate
European Commission
EU Cosmetic Ingredient Database (CosIng)
Aluminum Stearates
European Commission
EU Cosmetic Ingredient Database (CosIng)
Aluminum Tristearate
European Commission
EU Cosmetic Ingredient Database (CosIng)
Ammonium Silver Zinc Aluminum Silicate
European Commission
EU Cosmetic Ingredient Database (CosIng)
Magnesium Aluminum Silicate
European Commission
EU Cosmetic Ingredient Database (CosIng)
Potassium Aluminum Polyacrylate
European Commission
EU Cosmetic Ingredient Database (CosIng)
Sodium Potassium Aluminum Silicate
European Commission
EU Cosmetic Ingredient Database (CosIng)
Sodium Silver Aluminum Silicate
European Commission
EU Cosmetic Ingredient Database (CosIng)
Bioavailability and intestinal absorption of aluminum in rats: effects of aluminum compounds and some dietary constituents.
Cunat L, Lanhers MC, Joyeux M, Burnel D
Biological trace element research, 2000
Aluminum and Breast Cancer Hypothesis
Darbre PD
Journal of Inorganic Biochemistry, 2005
Final report on the safety assessment of aluminum silicat...
Amy R Elmore
International journal of toxicology, 2003
Final report on the safety assessment of aluminum silicate, calcium silicate, magnesium aluminum silicate, magnesium silicate, magnesium trisilicate,
Elmore AR, Cosmetic Ingredient Review Expert Panel
International journal of toxicology, 2003
Final report on the safety assessment of aluminum silicate, calcium silicate, magnesium aluminum silicate, magnesium silicate, magnesium trisilicate,
Elmore AR, Cosmetic Ingredient Review Expert Panel
International journal of toxicology, 2003
Final report on the safety assessment of aluminum silicate, calcium silicate, magnesium aluminum silicate, magnesium silicate, magnesium trisilicate,
Elmore AR, Cosmetic Ingredient Review Expert Panel
International journal of toxicology, 2003
Final report on the safety assessment of aluminum silicate, calcium silicate, magnesium aluminum silicate, magnesium silicate, magnesium trisilicate,
Elmore AR, Cosmetic Ingredient Review Expert Panel
International journal of toxicology, 2003
Final report on the safety assessment of aluminum silicate, calcium silicate, magnesium aluminum silicate, magnesium silicate, magnesium trisilicate,
Elmore AR, Cosmetic Ingredient Review Expert Panel
International journal of toxicology, 2003
Final report on the safety assessment of aluminum silicate, calcium silicate, magnesium aluminum silicate, magnesium silicate, magnesium trisilicate,
Elmore AR, Cosmetic Ingredient Review Expert Panel
International journal of toxicology, 2003
Final report on the safety assessment of aluminum silicate, calcium silicate, magnesium aluminum silicate, magnesium silicate, magnesium trisilicate,
Elmore AR, Cosmetic Ingredient Review Expert Panel
International journal of toxicology, 2003
Aluminum Calcium Sodium Silicate
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
Aluminum Dimyristate
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
Aluminum Distearate
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
Aluminum Hydroxide
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
Aluminum Myristate
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
Aluminum Myristates/Palmitates
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
Aluminum Silicate
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
Aluminum Starch Octenylsuccinate
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
Aluminum Stearate
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
Aluminum Tristearate
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
Calcium Aluminum Borosilicate
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
Magnesium Aluminum Silicate
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
Sodium Potassium Aluminum Silicate
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
Sodium Silver Aluminum Silicate
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
Dietary unsaponifiable fraction of extra virgin olive oil supplementation attenuates lung injury and DNA damage of rats co-exposed to aluminum and acr
Ghorbel I, Chaâbane M, Boudawara O, Kamoun NG, Boudawara T et al.
Environmental science and pollution research international, 2016
Aluminum chloride
Health Canada
Health Canada Cosmetic Ingredient Hotlist
Aluminum chlorohydrate and its associated complexes
Health Canada
Health Canada Cosmetic Ingredient Hotlist
Aluminum zirconium complexes
Health Canada
Health Canada Cosmetic Ingredient Hotlist
b) Not permitted in combination with aluminum chloride, aluminum chlorohydrate or its associated complexes or other aluminum zirconium complexes.
Health Canada
Health Canada Cosmetic Ingredient Hotlist
b) Not permitted in combination with aluminum chlorohydrate or its associated complexes or aluminum zirconium complexes
Health Canada
Health Canada Cosmetic Ingredient Hotlist
c) Deodorants and antiperspirants containing aluminum chloride must be in the form of an aqueous solution.
Health Canada
Health Canada Cosmetic Ingredient Hotlist
Review of aluminum, paraben, and sulfate product disclaimers on personal care products.
Liszewski W, Zaidi AJ, Fournier E, Scheman A
Journal of the American Academy of Dermatology, 2022
Studies of prophylaxis pastes containing sodium-potassium aluminum silicate and fluoride.
Putt MS, Kleber CJ, Muhler JC
Journal of dental research, 1979
Combined effect of silver nanoparticles and aluminium chloride, butylparaben or diethylphthalate on the malignancy of MDA-MB-231 breast cancer cells a
Roszak J, Smok-Pieniążek A, Jeżak K, Domeradzka-Gajda K, Grobelny J et al.
Toxicology in vitro : an international journal published in association with BIBRA, 2020
Safety of aluminium in cosmetic products - Submission IV
Scientific Committee on Consumer Safety (SCCS)
European Commission — SCCS
The pharmacokinetics of subcutaneous bolus cytosine arabinoside in an arachis oil plus aluminium distearate suspension.
Slevin ML, Piall EM, Johnston A, Levison DA, Aherne GW et al.
Investigational new drugs, 1984
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR