Sodium Lauroyl Sarcosinate


Cleansing Agent

No known benefits

Sodium Lauroyl Sarcosinate at a glance

  • Surfactant (cleansing agent) that can be plant-derived or created synthetically
  • Most popular in cleansers/shampoos but can also be used as an emulsifier in leave-on formulas
  • Proven track record of safety (up to 15% for rinse-off products; 5% for leave-on)
  • Offers excellent stability and is known to be gentle on skin
  • Coconut is a common source of sodium lauroyl sarcosinate in cosmetics

Sodium Lauroyl Sarcosinate description

Sodium lauroyl sarcosinate is a synthetic or plant-derived surfactant (cleansing agent) that also works as an emulsifier, which is a type of ingredient that keeps unlike substances from separating. It is most often used in face and body cleansers and shampoos but is sometimes also used in leave-on products. In cleansing formulas, it can contribute to a foaming effect.This safe, amino acid-based surfactant works well with various glycols, silicones, solvents, and phosphate esters, making it very versatile to formulate with. Offers excellent chemical stability and is known to be gentle on skin. Coconut is a common source of sodium lauroyl sarcosinate in cosmetic products.Safety assessments have confirmed that this ingredient is non-irritating and non-sensitising when applied to human skin in amounts up to 15% in rinse-off and 5% in leave-on products. It is approved for use in cosmetics.

Sodium Lauroyl Sarcosinate references

  • Transactions of Tianjin University, March 2020, pages 1-11
  • IOP Conference Series: Materials Science and Engineering, July 2019, pages 1-8
  • Cosmetic Ingredient Review, September 2016, pages 1-19
  • International Journal of Toxicology, 2001, pages 1-14

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