Ingredient review
Disodium Dihydroxyethyl Sulfosuccinylundecylenate
INCI: DISODIUM DIHYDROXYETHYL SULFOSUCCINYLUNDECYLENATE
A gentle, low-irritation surfactant that cleanses without stripping the skin, making it a good choice for sensitive or dry skin types.
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. It is designed to be less harsh than traditional sulfates, so it cleans without leaving your skin feeling tight or dry. Think of it as a gentle helper that lifts away makeup and grime while being kind to your skin's protective outer layer.
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 Dihydroxyethyl Sulfosuccinylundecylenate 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 Dihydroxyethyl Sulfosuccinylundecylenate.
- 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
A semi-synthetic surfactant created by combining undecylenic acid (a fatty acid from castor oil) with sulfosuccinate chemistry. It belongs to the sulfosuccinate family, known for their mildness and compatibility with sensitive skin.
How it works
It reduces the surface tension between water and oil, allowing oils and dirt to be emulsified and washed away. Its large molecular structure makes it less penetrating and therefore less irritating than smaller, harsher surfactants like sodium lauryl sulfate.
Pros
Very gentle on skin
Its large molecular structure means it stays on the surface and doesn't penetrate deeply, reducing the risk of irritation and dryness.
Supports barrier health
Unlike harsh detergents, it cleans without stripping away the skin's natural oils, helping to maintain a healthy moisture barrier.
Cons and cautions
Lower foam volume
It produces a creamier, less bubbly lather than sulfates, which some users may perceive as less effective even though it cleans just as well.
Higher cost
As a specialty mild surfactant, it is more expensive to produce, which can increase the price of the final product.
Best for
- People with sensitive, dry, or eczema-prone skin
- Those looking for a sulfate-free cleanser
Use caution if
- Individuals with a known allergy to castor oil derivatives (rare)
Usage tips
Safety summary
Disodium dihydroxyethyl sulfosuccinylundecylenate is considered safe for use in cosmetics at typical concentrations. It has a low irritation and comedogenic risk, making it suitable for sensitive and acne-prone skin. No significant safety concerns have been reported in regulatory reviews.
Research notes
Studies on sulfosuccinate surfactants, including this ingredient, show they are significantly milder than traditional anionic surfactants like sodium lauryl sulfate. Research indicates they cause less protein denaturation and lipid extraction from the skin, supporting their use in gentle cleansing formulations.
Common label clues
- Typical concentration
- 1–10% in rinse-off products
- Regulatory status
- Approved for use in cosmetics globally, including by the EU CosIng database and the US FDA (as part of the generally recognized safe surfactant family).
- Common uses
- Facial cleansers, Body washes, Shampoos, Makeup removers
- Environmental note
- Derived from castor oil (a renewable plant source) and designed to be biodegradable, reducing its environmental footprint compared to some petroleum-based surfactants.
Good to know
- It is often listed near the middle or end of an ingredient list because effective concentrations are relatively low.
- This ingredient is biodegradable and considered environmentally friendly.
Common questions
What is Disodium Dihydroxyethyl Sulfosuccinylundecylenate 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. It is designed to be less harsh than traditional sulfates, so it cleans without leaving your skin feeling tight or dry. Think of it as a gentle helper that lifts away makeup and grime while being kind to your skin's protective outer layer.
What does Disodium Dihydroxyethyl Sulfosuccinylundecylenate do in a beauty product?
It reduces the surface tension between water and oil, allowing oils and dirt to be emulsified and washed away. Its large molecular structure makes it less penetrating and therefore less irritating than smaller, harsher surfactants like sodium lauryl sulfate.
Is Disodium Dihydroxyethyl Sulfosuccinylundecylenate safe for most people?
Disodium dihydroxyethyl sulfosuccinylundecylenate is considered safe for use in cosmetics at typical concentrations. It has a low irritation and comedogenic risk, making it suitable for sensitive and acne-prone skin. No significant safety concerns have been reported in regulatory reviews.
Who should be careful with Disodium Dihydroxyethyl Sulfosuccinylundecylenate?
Individuals with a known allergy to castor oil derivatives (rare)
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.