Ingredient review
Sodium C12-15 Pareth-6 Carboxylate
INCI: SODIUM C12-15 PARETH-6 CARBOXYLATE
A gentle, synthetic surfactant that effectively cleanses without stripping the skin barrier.
In plain English
This is a mild soap-like ingredient that helps water mix with oil and dirt so they can be rinsed away. It's designed to be less harsh than traditional soaps, making it a good choice for sensitive or dry 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
- synthetic
- Evidence
- moderate
- Irritation
- low
- Clogging risk
- low
Quick decision guide
Useful, but context matters
Sodium C12-15 Pareth-6 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 C12-15 Pareth-6 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
A synthetic surfactant derived from fatty alcohols and ethylene oxide, modified with a carboxylate group for extra mildness.
How it works
It lowers the surface tension between water and oil, allowing impurities to be lifted from the skin and washed away. Its carboxylate group makes it less irritating than many other cleansing agents.
Pros
Very gentle on skin
Its carboxylate structure makes it one of the mildest surfactants, reducing the risk of irritation and dryness.
Effective cleanser
It removes makeup, excess oil, and daily grime without leaving a tight or stripped feeling.
Cons and cautions
Synthetic ingredient
It is not naturally derived, which may be a drawback for those seeking plant-based or 'clean' beauty products.
Potential for slight drying
In high concentrations or in leave-on products, it may still cause some dryness, especially if not balanced with moisturizing ingredients.
Best for
- People with dry or sensitive skin
- Those looking for a sulfate-free cleanser
Use caution if
- Individuals with known allergies to ethoxylated ingredients (rare)
Usage tips
Safety summary
Considered safe for use in cosmetics at typical concentrations. Low irritation and comedogenic risk, making it suitable for sensitive skin.
Research notes
Studies and industry data support its mildness compared to traditional anionic surfactants. It is well-tolerated in rinse-off products.
Common label clues
- Typical concentration
- 1–10% in rinse-off products; lower in leave-on formulas
- Regulatory status
- Approved for use in cosmetics in the EU, US, and other major markets. No known restrictions at typical use levels.
- Common uses
- Facial cleansers, Body washes, Shampoos, Makeup removers
- Environmental note
- As a synthetic surfactant, it may not be readily biodegradable, but many modern formulations aim to improve environmental profiles.
Good to know
- This ingredient is often used in sulfate-free formulations as a gentler alternative to sodium lauryl sulfate.
- It is compatible with a wide pH range, making it versatile for different product types.
Common questions
What is Sodium C12-15 Pareth-6 Carboxylate in beauty products?
This is a mild soap-like ingredient that helps water mix with oil and dirt so they can be rinsed away. It's designed to be less harsh than traditional soaps, making it a good choice for sensitive or dry skin.
What does Sodium C12-15 Pareth-6 Carboxylate do in a beauty product?
It lowers the surface tension between water and oil, allowing impurities to be lifted from the skin and washed away. Its carboxylate group makes it less irritating than many other cleansing agents.
Is Sodium C12-15 Pareth-6 Carboxylate safe for most people?
Considered safe for use in cosmetics at typical concentrations. Low irritation and comedogenic risk, making it suitable for sensitive skin.
Who should be careful with Sodium C12-15 Pareth-6 Carboxylate?
Individuals with known allergies to ethoxylated ingredients (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.