Cosmetic Ingredient

Silicon(Si)

INCI: SILICON
CAS 7440-21-3
Silicon(Si) is used in cosmetic products as a bulking agent (cosing listed function) agent.
Generally Safe
This ingredient has a good safety profile based on available data.
Purpose

Function

Bulking agent (CosIng listed function)
Profile

Properties

Silicone
Silicone free
Malassezia
Safe
Fungal Acne
Safe
Details

Description

Silicon(Si) is used in cosmetic products as a bulking agent (cosing listed function) agent.

Reference

Identifiers

CAS Number
7440-21-3
INCI
SILICON
Category
Cosmetic Ingredient
Updated
Apr 2, 2026