Ingredient review
Disodium C12-14 Pareth-1 Sulfosuccinate
INCI: DISODIUM C12-14 PARETH-1 SULFOSUCCINATE
A gentle, low-irritation cleansing ingredient often used in sulfate-free and sensitive-skin formulas.
In plain English
This is a synthetic cleansing agent that helps water mix with oil and dirt so they can be rinsed away. It creates a mild foam and is much less harsh on the skin than traditional sulfates like sodium lauryl sulfate. It's commonly found in gentle face washes, baby shampoos, and body cleansers.
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
Disodium C12-14 Pareth-1 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 C12-14 Pareth-1 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
A sulfosuccinate surfactant derived from fatty alcohols and maleic acid. It is a synthetic compound designed to provide effective cleansing with minimal skin irritation.
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 milder on the skin barrier compared to smaller, more aggressive surfactants.
Pros
Extremely mild on skin
Its large molecular structure means it doesn't strip the skin's natural oils, making it ideal for daily use on sensitive or compromised skin barriers.
Sulfate-free foaming
Provides a satisfying lather without the potential irritation of sodium lauryl sulfate or sodium laureth sulfate, so you still get a bubbly cleanse without the tight feeling.
Cons and cautions
Less effective on heavy makeup
Because it's so gentle, it may struggle to break down waterproof mascara or long-wear foundation, often requiring a double-cleansing step.
Can still cause dryness for some
While mild, overuse or very hot water can still lead to slight dehydration, especially if the product contains other drying ingredients.
Best for
- People with sensitive, dry, or eczema-prone skin looking for a gentle daily cleanser
- Anyone seeking a sulfate-free alternative for face or body cleansing
Use caution if
- Those who prefer oil-based or micellar cleansing methods and avoid all foaming surfactants
Usage tips
Safety summary
Considered safe for use in rinse-off cosmetics at typical concentrations. Low irritation and sensitization potential. Not known to be carcinogenic or endocrine-disrupting based on current evidence.
Research notes
Studies indicate sulfosuccinates are among the mildest anionic surfactants, with low skin penetration and minimal protein denaturation. Human patch tests show very low irritation rates.
Common label clues
- Typical concentration
- 1–10% in rinse-off products
- Regulatory status
- Approved for use in cosmetics globally, including by the U.S. FDA and EU CosIng database. No known restrictions at typical use levels.
- Common uses
- Facial cleansers, Body washes, Shampoos, Baby care products
- Environmental note
- Biodegradable under aerobic conditions, but like all surfactants, its environmental impact depends on concentration and wastewater treatment.
Good to know
- Often listed alongside other mild surfactants like cocamidopropyl betaine to boost foam and gentleness.
- Commonly found in baby shampoos because of its low eye-sting potential.
Common questions
What is Disodium C12-14 Pareth-1 Sulfosuccinate in beauty products?
This is a synthetic cleansing agent that helps water mix with oil and dirt so they can be rinsed away. It creates a mild foam and is much less harsh on the skin than traditional sulfates like sodium lauryl sulfate. It's commonly found in gentle face washes, baby shampoos, and body cleansers.
What does Disodium C12-14 Pareth-1 Sulfosuccinate 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 milder on the skin barrier compared to smaller, more aggressive surfactants.
Is Disodium C12-14 Pareth-1 Sulfosuccinate safe for most people?
Considered safe for use in rinse-off cosmetics at typical concentrations. Low irritation and sensitization potential. Not known to be carcinogenic or endocrine-disrupting based on current evidence.
Who should be careful with Disodium C12-14 Pareth-1 Sulfosuccinate?
Those who prefer oil-based or micellar cleansing methods and avoid all foaming surfactants
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.