Ingredient review
Disodium C12-14 Sec-Pareth-9 Sulfosuccinate
INCI: DISODIUM C12-14 SEC-PARETH-9 SULFOSUCCINATE
A gentle synthetic surfactant that cleanses effectively while being less harsh than traditional sulfates like SLS.
In plain English
This is a synthetic ingredient that helps water mix with oil and dirt so they can be rinsed away. It's often used in cleansers and shampoos because it creates a nice lather but is much milder on the skin than stronger detergents like sodium lauryl sulfate. Think of it as a gentle scrubber that doesn't strip your skin's natural moisture barrier.
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 Sec-Pareth-9 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 Sec-Pareth-9 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 synthetic surfactant derived from fatty alcohols and sulfosuccinic acid, designed to be a mild cleansing agent.
How it works
It reduces the surface tension between water and oil, allowing dirt, sebum, and makeup to be emulsified and rinsed away without harshly disrupting the skin's lipid barrier.
Pros
Mild on skin
Unlike harsher sulfates, this surfactant cleanses without stripping the skin's natural oils, making it ideal for daily use on sensitive or dry skin.
Good lather
It produces a rich, creamy foam that feels pleasant during cleansing, which can improve the user experience without compromising gentleness.
Cons and cautions
Less effective on heavy makeup
If you wear long-wear or waterproof makeup, you may need a double-cleansing routine because this ingredient alone may not remove everything.
Synthetic origin
It is not naturally derived, so it may not fit into 'clean' or 'natural' beauty preferences, though it is still considered safe.
Best for
- People with dry or sensitive skin looking for a gentle cleanser
- Those who prefer sulfate-free or mild cleansing products
Use caution if
- Individuals seeking a very deep-cleansing or clarifying wash for oily skin
- Anyone with a known allergy to sulfosuccinate compounds (rare)
Usage tips
Safety summary
Disodium C12-14 Sec-Pareth-9 Sulfosuccinate is considered safe for use in cosmetics at typical concentrations. It has low irritation and sensitization potential, making it suitable for sensitive skin. No significant safety concerns have been raised by regulatory bodies.
Research notes
Research indicates that sulfosuccinate surfactants are among the mildest anionic surfactants, with low skin irritation and good foaming properties. Studies show they are less damaging to the skin barrier than sodium lauryl sulfate.
Common label clues
- Typical concentration
- 1-10% in rinse-off products
- Regulatory status
- Approved for use in cosmetics by the FDA and EU CosIng database with no concentration restrictions for rinse-off products.
- Common uses
- Facial cleansers, Body washes, Shampoos, Baby products
- Environmental note
- Synthetic but biodegradable; generally considered low environmental impact compared to some other surfactants.
Good to know
- This ingredient is often part of 'sulfate-free' formulations, but always check the full ingredient list for other sulfates.
- It is considered biodegradable and safe for aquatic life at typical use levels.
Common questions
What is Disodium C12-14 Sec-Pareth-9 Sulfosuccinate in beauty products?
This is a synthetic ingredient that helps water mix with oil and dirt so they can be rinsed away. It's often used in cleansers and shampoos because it creates a nice lather but is much milder on the skin than stronger detergents like sodium lauryl sulfate. Think of it as a gentle scrubber that doesn't strip your skin's natural moisture barrier.
What does Disodium C12-14 Sec-Pareth-9 Sulfosuccinate do in a beauty product?
It reduces the surface tension between water and oil, allowing dirt, sebum, and makeup to be emulsified and rinsed away without harshly disrupting the skin's lipid barrier.
Is Disodium C12-14 Sec-Pareth-9 Sulfosuccinate safe for most people?
Disodium C12-14 Sec-Pareth-9 Sulfosuccinate is considered safe for use in cosmetics at typical concentrations. It has low irritation and sensitization potential, making it suitable for sensitive skin. No significant safety concerns have been raised by regulatory bodies.
Who should be careful with Disodium C12-14 Sec-Pareth-9 Sulfosuccinate?
Individuals seeking a very deep-cleansing or clarifying wash for oily skin Anyone with a known allergy to sulfosuccinate compounds (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.