Lauroyl Lysine



Lauroyl Lysine at a glance

  • Functions as a skin-softening and hair-conditioning agent, imparting a silky feel
  • Popular in makeup formulations that promise long wear due to the exceptional adherence to skin
  • Also used to adjust the texture of cosmetic formulas
  • Proven track record of safety in concentrations up to 45%

Lauroyl Lysine description

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. Lauroyl 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. The 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.

Lauroyl Lysine references

  •, accessed July 2021, ePublication
  • International Journal of Toxicology, May 2017, pages 17S-56S
  • Organic & Biomolecular Chemistry, 2003 pages 4125-4134

Peer-reviewed, substantiated scientific research is used to assess ingredients in this dictionary. Regulations regarding constraints, permitted concentration levels and availability vary by country and region.

Ingredient ratings


Proven and supported by independent studies. Outstanding active ingredient for most skin types or concerns.


Necessary to improve a formula's texture, stability, or penetration.


Generally non-irritating but may have aesthetic, stability, or other issues that limit its usefulness.


There is a likelihood of irritation. Risk increases when combined with other problematic ingredients.


May cause irritation, inflammation, dryness, etc. May offer benefit in some capability but overall, proven to do more harm than good.


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Not Rated