Lauryl Betaine


Cleansing Agent

No known benefits

Lauryl Betaine at a glance

  • Surfactant used in skin, hair and body care for cleansing
  • Helps stabilize foam in rinse-off products
  • Occurs in cosmetics between 0.015% and 8.8%
  • CIR Expert Panel deemed safe for use

Lauryl Betaine description

Lauryl betaine’s a skin care ingredient used as a cleansing agent and also to help promote foaming in rinse-off products like cleansers. It’s often used as a secondary surfactant, or as a “booster,” letting other surfactants play the primary role, where it helps to stabilize foaming. Although lauryl betaine can be plant derived, it’s also created synthetically, where in raw material form, it’s a clear liquid. Beyond skin care cleansers, it’s also featured in shampoos and body washes. The Cosmetic Ingredient Review Expert Panel deemed lauryl betaine safe for use, noting that it appears in cosmetics and personal care products in amounts between 0.015% and 8.8%.

Lauryl Betaine references

  • Journal of Petroleum Exploration and Production Technology, April 2019, pages 2659–2665
  • International Journal of Toxicology, May/June 2018, pages 28S-46S

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

We have not yet rated this ingredient because we have not had a chance to review the research on it.