| 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 l-lysine is vegan and vegetarian.
L-Lysine is an amino acid. As far as I can tell all commercial production is from fermentation.
Sources
- Burnett, C. L., Heldreth, B., Bergfeld, W. F., Belsito, D. V., Hill, R. A., Klaassen, C. D., Liebler, D. C., Marks, J. G., Shank, R. C., Slaga, T. J., Snyder, P. W., & Andersen, F. A. (2013). Safety Assessment of α-Amino Acids as Used in Cosmetics. International Journal of Toxicology, 32(6_suppl), 41S–64S.
https://doi.org/10.1177/1091581813507090 - https://www.myandegroup.com/blog/industrial-lysine-fermentation-process