| Vegan? Yes | Vegetarian? Yes |
Classifications are made based on the available commercial supply of the ingredient, and are made based on the criteria on our classifications page.
Commercially available caprylhydroxamic acid is vegan and vegetarian.
Caprylhydroxamic acid is a white solid used as an antibacterial preservative in cosmetics. One supplier contacted by the Cosmetic Ingredient Safety panel reports that it is synthesized from methyl caprylate and hydroxylamine.
Sources
- https://honest.com/blogs/wellness/what-is-caprylhydroxamic-acid
- Fiume, M. M., Bergfeld, W. F., Belsito, D. V., Hill, R. A., Klaassen, C. D., Liebler, D. C., Marks, J. G., Peterson, L. A., Shank, R. C., Slaga, T. J., Snyder, P. W., & Heldreth, B. (2025). Safety Assessment of Caprylhydroxamic Acid as Used in Cosmetics. International Journal of Toxicology, 44(2_suppl).
https://doi.org/10.1177/10915818251343874 - https://puracy.com/blogs/ingredients/caprylhydroxamic-acid