Ingredient review
Sodium C10-13 Alkyl Benzenesulfonate
INCI: Sodium C10-13 Alkyl Benzenesulfonate
A strong synthetic cleanser that effectively removes dirt and oil but may be drying or irritating for sensitive skin.
In plain English
This is a man-made ingredient that helps water mix with oil and dirt so they can be rinsed away. It's a type of detergent commonly found in body washes and shampoos. Because it's a strong cleanser, it can strip the skin of its natural oils, which might leave some people feeling tight or dry after washing.
Review score
Safety, usefulness, and evidence
Potentially useful with some tradeoffs
The evidence base is useful, but some claims depend heavily on the formula.
Main practical flags: irritation is moderate; clogging risk is low.
- Source
- synthetic
- Evidence
- moderate
- Irritation
- moderate
- Clogging risk
- low
Quick decision guide
Useful, but context matters
Sodium C10-13 Alkyl Benzenesulfonate can be useful, but watch for some irritation potential.
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 Sodium C10-13 Alkyl Benzenesulfonate.
- 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
moderateCan bother some users, especially with frequent use, damaged skin, or strong companion ingredients.
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 anionic surfactant derived from petroleum. It belongs to the alkyl benzene sulfonate family and is chosen for its powerful foaming and cleansing abilities.
How it works
It reduces the surface tension between water and oil, allowing oil, dirt, and makeup to be lifted from the skin and suspended in water so they can be rinsed away easily.
Pros
Powerful cleanser
Removes heavy oils, sunscreen, and dirt effectively, making it useful for oily skin types.
Good foam
Creates a rich, bubbly lather that many people associate with a thorough clean.
Cons and cautions
Can be drying
May strip the skin of its natural moisture barrier, leading to tightness or flakiness after washing.
Irritation potential
Moderate risk of irritation, especially for sensitive skin or if left on the skin too long.
Best for
- People with oily or normal skin who prefer a deep clean
- Those using it in rinse-off products like body wash or shampoo
Use caution if
- Individuals with dry, sensitive, or compromised skin barriers
- Anyone with eczema or rosacea
Usage tips
Safety summary
Generally safe for use in rinse-off cosmetics at typical concentrations. However, it can be drying and irritating for some skin types. Avoid contact with eyes and prolonged skin contact.
Research notes
Studies show that alkyl benzene sulfonates are effective cleansers but can disrupt the skin barrier with frequent use. They are well-studied in rinse-off products and considered safe within regulated limits.
Common label clues
- Typical concentration
- 1–10% in rinse-off products
- Regulatory status
- Approved for use in cosmetics in the US, EU, and many other regions. Concentration limits may apply in leave-on products.
- Common uses
- Body washes, Facial cleansers, Shampoos, Hand soaps
- Environmental note
- As a petroleum-derived surfactant, it is not biodegradable as quickly as some natural alternatives. Environmental impact depends on formulation and disposal.
Good to know
- Often found in products labeled 'deep clean' or 'oil control'
- May be listed alongside other surfactants to reduce irritation
Common questions
What is Sodium C10-13 Alkyl Benzenesulfonate in beauty products?
This is a man-made ingredient that helps water mix with oil and dirt so they can be rinsed away. It's a type of detergent commonly found in body washes and shampoos. Because it's a strong cleanser, it can strip the skin of its natural oils, which might leave some people feeling tight or dry after washing.
What does Sodium C10-13 Alkyl Benzenesulfonate do in a beauty product?
It reduces the surface tension between water and oil, allowing oil, dirt, and makeup to be lifted from the skin and suspended in water so they can be rinsed away easily.
Is Sodium C10-13 Alkyl Benzenesulfonate safe for most people?
Generally safe for use in rinse-off cosmetics at typical concentrations. However, it can be drying and irritating for some skin types. Avoid contact with eyes and prolonged skin contact.
Who should be careful with Sodium C10-13 Alkyl Benzenesulfonate?
Individuals with dry, sensitive, or compromised skin barriers Anyone with eczema or rosacea
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.