Is Hydrolyzed Silk vegetarian?
Hydrolyzed Silk
A protein hydrolyzate derived from silk fibers produced by silkworms, used in cosmetics as a conditioning and moisturizing agent. Because it requires killing silkworms (or pupae) during processing, it is considered non-vegan and non-vegetarian.
| Also known as | Protein hydrolyzates, silk, Silk protein hydrolyzate |
|---|---|
| INCI name | Hydrolyzed Silk |
| CAS number | 96690-41-4 |
| EC number | 306-235-8 |
| CosIng ID | 34459 |
| Last reviewed | 9 July 2026 |
An ingredient is considered vegetarian if it avoids components derived from killing an animal.
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.