Ingredient review
Disodium Laureth-12 Sulfosuccinate
INCI: Disodium Laureth-12 Sulfosuccinate
A gentle, sulfate-free surfactant that cleanses without stripping the skin barrier, ideal for sensitive or dry skin.
In plain English
This ingredient is a mild soap-like molecule that helps water mix with oil and dirt so they can be rinsed away. Unlike harsher cleansers, it is less likely to leave your skin feeling tight or dry. It is often used in products labeled 'gentle' or 'for sensitive skin' because it cleans effectively without over-stripping your skin's natural oils.
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
- semi synthetic
- Evidence
- moderate
- Irritation
- low
- Clogging risk
- low
Quick decision guide
Useful, but context matters
Disodium Laureth-12 Sulfosuccinate 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 Disodium Laureth-12 Sulfosuccinate.
- 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
Disodium Laureth-12 Sulfosuccinate is a semi-synthetic surfactant made from lauryl alcohol (derived from coconut or palm oil) and sulfosuccinic acid. It belongs to the sulfosuccinate family, known for being exceptionally mild on skin and eyes.
How it works
It works by reducing the surface tension between water and oil, allowing dirt, sebum, and makeup to be emulsified and washed away. Its large molecular structure makes it less penetrating into the skin, which reduces irritation potential compared to smaller, harsher surfactants like sodium lauryl sulfate.
Pros
Very mild on skin
Its large molecular structure means it doesn't penetrate deeply into the skin, reducing the risk of irritation and dryness, making it ideal for sensitive skin and baby products.
Good foam without sulfates
Produces a rich, creamy lather that feels luxurious, even though it is sulfate-free, so you don't have to sacrifice texture for gentleness.
Cons and cautions
Less effective on heavy makeup
On its own, it may struggle to remove waterproof mascara or long-wear foundation, so you might need a double-cleansing step.
Potential for slight drying at high levels
If used as the main surfactant in a formula at very high concentrations, it can still cause some dryness, though much less than harsher alternatives.
Best for
- People with dry, sensitive, or eczema-prone skin looking for a gentle cleanser
- Anyone seeking a sulfate-free cleanser that still provides good foam
Use caution if
- Those who prefer oil-based or micellar cleansing methods and avoid foaming cleansers entirely
Usage tips
Safety summary
Disodium Laureth-12 Sulfosuccinate is considered safe for use in cosmetics, with a low irritation and comedogenic profile. It is well-tolerated by sensitive skin and eyes, and has been reviewed by the CIR panel with no significant safety concerns.
Research notes
Research indicates that sulfosuccinates are among the mildest anionic surfactants, with low skin penetration and irritation potential. Studies show they cause less protein denaturation and barrier disruption compared to sodium lauryl sulfate.
Common label clues
- Typical concentration
- 1% to 10%
- Regulatory status
- Approved for use in cosmetics by the FDA and the European Commission. The Cosmetic Ingredient Review (CIR) panel has deemed it safe as used in rinse-off products.
- Common uses
- Facial cleansers, Body washes, Shampoos, Baby shampoos, Foaming cleansers
- Environmental note
- Sulfosuccinates are generally considered biodegradable and less toxic to aquatic life than some traditional sulfates, though sourcing of lauryl alcohol from palm oil may raise sustainability concerns.
Good to know
- It is often combined with other mild surfactants like cocamidopropyl betaine to boost foam and mildness.
- Despite the 'laureth' in its name, it is not a sulfate and is considered a gentle alternative to SLS/SLES.
Common questions
What is Disodium Laureth-12 Sulfosuccinate in beauty products?
This ingredient is a mild soap-like molecule that helps water mix with oil and dirt so they can be rinsed away. Unlike harsher cleansers, it is less likely to leave your skin feeling tight or dry. It is often used in products labeled 'gentle' or 'for sensitive skin' because it cleans effectively without over-stripping your skin's natural oils.
What does Disodium Laureth-12 Sulfosuccinate do in a beauty product?
It works by reducing the surface tension between water and oil, allowing dirt, sebum, and makeup to be emulsified and washed away. Its large molecular structure makes it less penetrating into the skin, which reduces irritation potential compared to smaller, harsher surfactants like sodium lauryl sulfate.
Is Disodium Laureth-12 Sulfosuccinate safe for most people?
Disodium Laureth-12 Sulfosuccinate is considered safe for use in cosmetics, with a low irritation and comedogenic profile. It is well-tolerated by sensitive skin and eyes, and has been reviewed by the CIR panel with no significant safety concerns.
Who should be careful with Disodium Laureth-12 Sulfosuccinate?
Those who prefer oil-based or micellar cleansing methods and avoid foaming cleansers entirely
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.