Ingredient review
Sodium Lauroamphohydroxypropylsulfonate
INCI: Sodium Lauroamphohydroxypropylsulfonate
A gentle, sulfate-free surfactant that effectively cleanses while being kind to sensitive and dry skin.
In plain English
This is a mild cleansing ingredient that helps water mix with oil and dirt so they can be rinsed away. Unlike harsher sulfates, it is designed to clean without stripping your skin's natural moisture barrier, making it a popular choice for sensitive or dry skin types.
Review score
Safety, usefulness, and evidence
Potentially useful with some tradeoffs
The evidence base is useful, but some claims depend heavily on the formula.
Risk flags are low for most users, though the finished product can still irritate.
- Source
- synthetic
- Evidence
- moderate
- Irritation
- low
- Clogging risk
- low
Quick decision guide
Useful, but context matters
Sodium Lauroamphohydroxypropylsulfonate is generally a lower-concern ingredient when the full formula suits your skin.
Plain-English read
Treat this as a practical screening step before you compare products that contain this ingredient.
- Step 1Start with the score, then check the irritation and clogging risk before judging Sodium Lauroamphohydroxypropylsulfonate.
- Step 2Use the "Best for" and "Use caution if" sections to match the ingredient to your skin, not just to a marketing claim.
- Step 3If a product stings, breaks you out, or worsens irritation, judge the finished formula and stop using it even if the ingredient scores well.
Score terms in plain English
Irritation risk
lowLess likely to sting, burn, or bother most users, though sensitive skin can still react.
Clogging risk
lowLess likely to feel heavy or contribute to clogged pores for most skin types.
Evidence level
moderateThere is useful support, but formula details and claim strength still matter.
What it is
Sodium Lauroamphohydroxypropylsulfonate is a synthetic, amphoteric surfactant derived from coconut oil and other petrochemical sources. It is part of the amphoacetate family, known for its gentle cleansing properties and compatibility with other surfactants.
How it works
It works by reducing the surface tension between water and oil, allowing impurities to be lifted from the skin and easily rinsed away. Its amphoteric nature means it can adjust its charge based on pH, which helps it remain mild and non-irritating even at higher concentrations.
Pros
Very gentle on skin
Its amphoteric structure makes it one of the mildest surfactants, ideal for daily use on sensitive or compromised skin barriers.
Sulfate-free option
Provides effective foam and cleansing without sodium lauryl sulfate (SLS) or sodium laureth sulfate (SLES), reducing the risk of irritation.
Cons and cautions
Synthetic origin
Derived from petrochemicals, which may be a turn-off for consumers seeking 100% natural or plant-based ingredients.
Potential for slight dryness
While mild, very high concentrations or frequent use may still lead to minor dryness, especially for already dehydrated skin.
Best for
- People with sensitive or reactive skin
- Those looking for a sulfate-free cleanser
Use caution if
- Individuals who strictly avoid all synthetic ingredients
Usage tips
Safety summary
Considered safe for use in rinse-off cosmetics at typical concentrations. Low irritation and sensitization potential, making it suitable for sensitive skin. No known carcinogenic or reproductive toxicity concerns.
Research notes
Clinical and safety data support its mildness compared to traditional sulfates. It is well-tolerated in patch tests and is recommended for formulations targeting sensitive skin.
Common label clues
- Typical concentration
- 1% to 10% in rinse-off products
- Regulatory status
- Approved for use in cosmetics worldwide, including by the U.S. FDA and EU CosIng database, with no known restrictions at typical concentrations.
- Common uses
- Facial cleansers, Body washes, Shampoos, Baby care products
- Environmental note
- Synthetic surfactant; biodegradability varies by formulation. Some studies suggest it is less persistent than older surfactant types.
Good to know
- Often used in combination with other mild surfactants to boost foam and stability.
- Commonly found in 'no-tears' baby shampoos due to its low irritation profile.
Common questions
What is Sodium Lauroamphohydroxypropylsulfonate in beauty products?
This is a mild cleansing ingredient that helps water mix with oil and dirt so they can be rinsed away. Unlike harsher sulfates, it is designed to clean without stripping your skin's natural moisture barrier, making it a popular choice for sensitive or dry skin types.
What does Sodium Lauroamphohydroxypropylsulfonate do in a beauty product?
It works by reducing the surface tension between water and oil, allowing impurities to be lifted from the skin and easily rinsed away. Its amphoteric nature means it can adjust its charge based on pH, which helps it remain mild and non-irritating even at higher concentrations.
Is Sodium Lauroamphohydroxypropylsulfonate safe for most people?
Considered safe for use in rinse-off cosmetics at typical concentrations. Low irritation and sensitization potential, making it suitable for sensitive skin. No known carcinogenic or reproductive toxicity concerns.
Who should be careful with Sodium Lauroamphohydroxypropylsulfonate?
Individuals who strictly avoid all synthetic ingredients
Research sources
Ingredient reviews are educational and are not medical advice. Patch test new products and ask a licensed clinician about persistent irritation, allergies, pregnancy-specific questions, or diagnosed skin conditions.