Is Acetyl Hydroxyproline vegetarian?
Acetyl Hydroxyproline
Vegetarian
Vegetarian
Vegan
Vegan
Acetyl Hydroxyproline is the acetylated derivative of hydroxyproline, an amino acid, typically produced synthetically for use in skin-conditioning cosmetic formulations.
| Also known as | L-Proline, 1 Acetyl-4-Hydroxy- |
|---|---|
| INCI name | Acetyl Hydroxyproline |
| CAS number | 33996-33-7 |
| EC number | 251-780-6 |
| CosIng ID | 54137 |
| 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.