Is Silicon vegan?
Silicon
Silicon is a chemical element with symbol Si and atomic number 14, a hard, brittle crystalline metalloid with a blue-grey metallic lustre. It occurs naturally as silicate minerals and is widely used in cosmetics, electronics, and industry.
| Also known as | Si |
|---|---|
| INCI name | Silicon |
| CAS number | 7440-21-3 |
| EC number | 231-130-8 |
| CosIng ID | 96140 |
| Last reviewed | 9 July 2026 |
An ingredient is considered vegan if it contains no animal-derived components at any point in its production.
Classifications are made to the best of our knowledge based on available scientific and regulatory sources. We cannot guarantee the accuracy of every entry, errors in the sources we draw from can always occur. This tool also cannot account for cross-contamination, which depends entirely on individual suppliers and producers. If you believe a classification is incorrect, you can report an issue.