Sodium Lauroamphopropionate
INCI: SODIUM LAUROAMPHOPROPIONATE
Reviewed by Daisy · Last updated 14 Aug 2026
A mild surfactant that cleanses and conditions whilst maintaining skin balance
Best For Skin Types
All, Sensitive, Oily, Combination
Addresses
Usage Frequency
Daily
What Is Sodium Lauroamphopropionate?
Sodium lauroamphopropionate is a synthetic surfactant derived from lauric acid, a naturally occurring fatty acid. It belongs to a class of amphoteric surfactants, meaning it carries both positive and negative charges, which allows it to work effectively across a range of pH levels. In skincare formulations, it functions as a cleanser and conditioning agent.
This ingredient is primarily used in cleansing products where it helps to remove oil and impurities from the skin surface. Unlike some harsher surfactants, amphoteric surfactants tend to be gentler and are often chosen for formulations intended for sensitive or compromised skin barriers, though individual tolerance varies.
How It Works
As an amphoteric surfactant, sodium lauroamphopropionate works by positioning itself at the boundary between oil and water. One end of the molecule is attracted to oils and dirt on the skin, whilst the other end is attracted to water. This allows it to suspend impurities so they can be rinsed away without requiring excessive friction or heat.
The amphoteric nature of this ingredient means it is less likely to disrupt the skin's natural pH compared to some alternative surfactants. This can make it a more suitable choice for formulations designed to maintain skin barrier health, though the overall mildness of a cleanser depends on the full formula.
Clinical Evidence & References
Direct clinical evidence specific to sodium lauroamphopropionate in skincare is limited. However, amphoteric surfactants as a class have been studied and are generally recognised as milder alternatives to traditional anionic surfactants. They are less likely to cause irritation or excessive lipid removal at typical use concentrations.
Emerging research highlights the importance of sodium balance in skin health; some evidence suggests that excessive sodium in the skin environment may contribute to inflammatory responses. A well-formulated cleanser containing this ingredient, when used appropriately, should not lead to problematic sodium accumulation, as it is designed to be rinsed away. Further targeted research on this specific ingredient would help clarify its long-term effects on skin barrier function.
How to Use
Use sodium lauroamphopropionate-containing cleansers as you would any gentle facial or body cleanser: apply to damp skin, lather gently, and rinse thoroughly with water. Ensure the product is fully removed, as residual surfactant can potentially irritate skin over time. If using in a leave-on formulation (which is less common), patch test first to confirm tolerance.
Safety & Precautions
Frequently Asked Questions
From the Clinic
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