Is Sulfonated Keratin vegetarian?
Sulfonated Keratin
Vegetarian
Not Vegetarian
Vegan
Not Vegan
Sulfonated Keratin is a modified protein obtained by the oxidative sulfitolysis of wool keratin, derived from sheep's wool, used in hair and skin care products for its conditioning properties.
| INCI name | Sulfonated Keratin |
|---|---|
| CosIng ID | 86945 |
| 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.