Aminopropyl Triethoxysilane

AMI

2/10

Concern level

Low concern

Aminosilane coupling agent and surface modifier. PubChem lists it as (3-Aminopropyl)triethoxysilane (CAS 919-30-2, MW 221.37 g/mol), and the EU cosmetic ingredient inventory lists it with a cleansing-surfactant function. ([pubchem.ncbi.nlm.nih.gov](https://pubchem.ncbi.nlm.nih.gov/compound/%283-Aminopropyl%29triethoxysilane?utm_source=openai))

Pore-clogging

Non-comedogenic

Pregnancy

Caution

Regulatory

No data

Concerns

Allergen

Chemical Properties

Molecular Weight

221.37 g/mol

Typical Concentration

0.01% - 1.00%

CAS Number: 919-30-2

Skin Type Compatibility

dry skin0/10

oily skin1/10

sensitive skin0/10

acne prone0/10

mature skin0/10

normal skin0/10

Interactions

incompatible with: Avoid combining with water-rich handling conditions during bulk manufacturing unless the process is designed for silane hydrolysis/condensation., Avoid leave-on use with sensitive-skin actives or exfoliating acids because of irritation risk.

Risks & Warnings

High irritation potential: PubChem/ECHA hazard summaries describe it as corrosive/irritant, with skin sensitization and severe eye/skin damage reports. Not appropriate for leave-on skin contact without strong evidence of safe cosmetic formulation and low residual exposure. ([pubchem.ncbi.nlm.nih.gov](https://pubchem.ncbi.nlm.nih.gov/compound/3-Aminopropyltriethoxysilane?utm_source=openai))

Vegan Cruelty-Free

Found In Products

JOSIE MARAN