Ingredient review
Sodium Laureth-14 Carboxylate
INCI: SODIUM LAURETH-14 CARBOXYLATE
A gentle, non-stripping surfactant that effectively cleanses while being kinder to sensitive skin than traditional sulfates.
In plain English
Sodium Laureth-14 Carboxylate is a mild cleansing ingredient that helps water mix with oil and dirt so they can be rinsed away. Unlike harsher detergents like sodium lauryl sulfate, it is less likely to dry out or irritate your skin, making it a popular choice for gentle face washes and baby products.
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
Sodium Laureth-14 Carboxylate 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 Sodium Laureth-14 Carboxylate.
- 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
Sodium Laureth-14 Carboxylate is a semi-synthetic surfactant derived from lauryl alcohol (from coconut or palm oil) that has been ethoxylated and carboxylated to create a very mild cleansing agent.
How it works
It reduces the surface tension between water and oil, allowing dirt, sebum, and makeup to be emulsified and washed away. Its large, gentle molecular structure makes it less penetrating into the skin barrier, which lowers irritation potential.
Pros
Very gentle on skin
Its large molecular structure means it doesn't easily penetrate the skin barrier, reducing the risk of irritation and dryness.
Good for sensitive skin
Commonly used in baby washes and dermatologist-recommended cleansers because of its mildness.
Cons and cautions
Low foam
Produces less lather than traditional sulfates, which some users may find less satisfying.
Potential trace impurities
As an ethoxylated ingredient, it may contain trace amounts of 1,4-dioxane, though reputable manufacturers keep levels well below safety limits.
Best for
- People with dry or sensitive skin who find traditional sulfates too harsh
- Those looking for a mild daily facial cleanser
Use caution if
- Individuals with known allergies to coconut-derived ingredients
- Those seeking a high-foam, bubbly cleanser experience (this ingredient produces low foam)
Usage tips
Safety summary
Sodium Laureth-14 Carboxylate is considered safe for use in cosmetics at typical concentrations. It is a low-irritant surfactant with a strong safety profile, though trace 1,4-dioxane is a manufacturing concern that is well-controlled by industry standards.
Research notes
Studies show that ether carboxylates like this ingredient are among the mildest anionic surfactants, with significantly less protein denaturation and skin barrier disruption than sodium lauryl sulfate. The Cosmetic Ingredient Review (CIR) panel has deemed similar ethoxylated surfactants safe as used.
Common label clues
- Typical concentration
- 1–10% in rinse-off products; lower in leave-on formulations
- Regulatory status
- Approved for use in cosmetics by the FDA and EU CosIng database. Manufacturers must ensure 1,4-dioxane levels are below 10 ppm (often <1 ppm).
- Common uses
- Facial cleansers, Body washes, Shampoos, Baby care products
- Environmental note
- Derived from renewable plant sources (coconut or palm oil). Biodegradability is good, but ethoxylation requires energy-intensive processing.
Good to know
- Often listed alongside other mild surfactants in 'sulfate-free' formulas.
- The '14' in the name refers to the average number of ethylene oxide units, which contributes to its mildness.
Common questions
What is Sodium Laureth-14 Carboxylate in beauty products?
Sodium Laureth-14 Carboxylate is a mild cleansing ingredient that helps water mix with oil and dirt so they can be rinsed away. Unlike harsher detergents like sodium lauryl sulfate, it is less likely to dry out or irritate your skin, making it a popular choice for gentle face washes and baby products.
What does Sodium Laureth-14 Carboxylate do in a beauty product?
It reduces the surface tension between water and oil, allowing dirt, sebum, and makeup to be emulsified and washed away. Its large, gentle molecular structure makes it less penetrating into the skin barrier, which lowers irritation potential.
Is Sodium Laureth-14 Carboxylate safe for most people?
Sodium Laureth-14 Carboxylate is considered safe for use in cosmetics at typical concentrations. It is a low-irritant surfactant with a strong safety profile, though trace 1,4-dioxane is a manufacturing concern that is well-controlled by industry standards.
Who should be careful with Sodium Laureth-14 Carboxylate?
Individuals with known allergies to coconut-derived ingredients Those seeking a high-foam, bubbly cleanser experience (this ingredient produces low foam)
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.