Lauroyl Lysine
Reviewed by Emma · Last updated 18 Aug 2026
Functions as a skin-softening and hair-conditioning agent, imparting a silky feel
EWG Safety Score
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What Is Lauroyl Lysine?
Lauroyl lysine is an amino acid derivative that functions as a skin-softening and hair-conditioning agent, imparting a silky feel. It also contributes to a product’s texture by helping to gel the solvents, while also remaining stable under high heat conditions.\n\nLauroyl lysine can be found in all kinds of beauty products including sunscreens, eye makeup, lipsticks, and hair care serums. In makeup, it is often used to help ensure longer-lasting wear thanks to its excellent adherence to skin.\n\nThe Cosmetic Ingredient Review Expert Panel conducted a safety assessment of lauroyl lysine in 2017 and concluded it is safe in the reported cosmetic uses in concentrations up to 45%. As a raw material it comes in white crystalline powder form.
Clinical Evidence & References
Published Research
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Ulprospector.com, accessed July 2021, ePublication Ulprospector.com, 2021
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International Journal of Toxicology, May 2017, pages 17S-56S International Journal of Toxicology, 2017
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Organic & Biomolecular Chemistry, 2003 pages 4125-4134 Organic & Biomolecular Chemistry, 2003
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