Ingredient review
Disodium Sitostereth-14 Sulfosuccinate
INCI: DISODIUM SITOSTERETH-14 SULFOSUCCINATE
A gentle, plant-derived surfactant that cleanses effectively while being kind to sensitive skin.
In plain English
This ingredient is a mild soap-like molecule made from plant sterols (similar to cholesterol in plants) and sulfosuccinic acid. It helps water mix with oil and dirt so they can be rinsed away, but it's much less harsh than traditional sulfates like SLS. Your skin's natural moisture barrier is less likely to be disrupted, making it a good choice for dry or sensitive skin.
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 Sitostereth-14 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 Sitostereth-14 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 semi-synthetic surfactant created by combining a plant-derived sterol (sitosterol) with a modified fatty chain and sulfosuccinate group. It belongs to the class of sulfosuccinate surfactants known for their mildness.
How it works
It reduces the surface tension between water and oil, allowing impurities and excess sebum to be emulsified and washed away. Its large molecular structure makes it less penetrating and less irritating than smaller surfactants.
Pros
Extremely mild
Its large molecular structure means it sits on the skin's surface rather than penetrating, reducing irritation risk even for eczema-prone skin.
Plant-derived base
The sitosterol component comes from plant oils, making it a renewable alternative to purely petroleum-based surfactants.
Cons and cautions
Lower foam
It produces a creamy, low-foam lather that some users may find less satisfying than the bubbly foam of sulfate cleansers.
Not for heavy oil
On very oily skin, it may not remove excess sebum as thoroughly as stronger surfactants, potentially requiring a second cleanse.
Best for
- People with dry or sensitive skin
- Those looking for a sulfate-free cleanser
Use caution if
- Individuals with very oily skin who prefer a high-foam, deep-cleansing experience
Usage tips
Safety summary
Disodium Sitostereth-14 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
While specific studies on this exact ingredient are limited, the broader class of sulfosuccinate surfactants is well-documented for mildness and low irritation. The plant sterol component adds moisturizing potential, but more research is needed to confirm unique benefits.
Common label clues
- Typical concentration
- 1–10% in rinse-off products
- Regulatory status
- Approved for use in cosmetics in the EU, US, and other major markets. No specific restrictions beyond general cosmetic safety requirements.
- Common uses
- Gentle cleansers, Facial washes, Shampoos, Body washes
- Environmental note
- Biodegradability data is limited, but sulfosuccinates as a class are generally considered more environmentally friendly than some traditional surfactants.
Good to know
- Often found in 'sulfate-free' and 'gentle' cleanser formulas.
- Works well in combination with other mild surfactants like cocamidopropyl betaine.
Common questions
What is Disodium Sitostereth-14 Sulfosuccinate in beauty products?
This ingredient is a mild soap-like molecule made from plant sterols (similar to cholesterol in plants) and sulfosuccinic acid. It helps water mix with oil and dirt so they can be rinsed away, but it's much less harsh than traditional sulfates like SLS. Your skin's natural moisture barrier is less likely to be disrupted, making it a good choice for dry or sensitive skin.
What does Disodium Sitostereth-14 Sulfosuccinate do in a beauty product?
It reduces the surface tension between water and oil, allowing impurities and excess sebum to be emulsified and washed away. Its large molecular structure makes it less penetrating and less irritating than smaller surfactants.
Is Disodium Sitostereth-14 Sulfosuccinate safe for most people?
Disodium Sitostereth-14 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 Sitostereth-14 Sulfosuccinate?
Individuals with very oily skin who prefer a high-foam, deep-cleansing experience
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.