Ingredient review
TEA-C12-13 Pareth-3 Sulfate
INCI: TEA-C12-13 PARETH-3 SULFATE
A milder alternative to sodium lauryl sulfate, but still a surfactant that can be drying for sensitive skin.
In plain English
This is a cleansing ingredient that helps water mix with oil and dirt so they can be rinsed away. It's a type of sulfate, but it's considered gentler than harsher sulfates like SLS because it has a larger, less-penetrating molecule. It creates a good lather and is often used in shampoos and body washes.
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
TEA-C12-13 Pareth-3 Sulfate 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 TEA-C12-13 Pareth-3 Sulfate.
- 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 fatty alcohols and ethylene oxide, neutralized with triethanolamine (TEA). It belongs to the alkyl ether sulfate family, similar to sodium laureth sulfate but with a different counterion and chain length.
How it works
It reduces the surface tension between water and oil, allowing oils and dirt on the skin or hair to be emulsified and washed away. Its larger molecular structure makes it less irritating than smaller sulfates, but it still effectively removes sebum and product buildup.
Pros
Effective cleanser
Removes excess oil, dirt, and product buildup without stripping the skin as harshly as SLS.
Good foam
Produces a satisfying lather that many people associate with a thorough clean.
Cons and cautions
Potential dryness
Can still disrupt the skin's natural moisture barrier if used too frequently or in high concentrations, especially for dry skin.
Not sulfate-free
Despite being milder, it is still a sulfate and may not be suitable for those avoiding all sulfates.
Best for
- People with normal to oily skin or hair
- Those looking for a sulfate that is gentler than SLS
Use caution if
- Individuals with very dry, eczema-prone, or compromised skin barriers
- Those who prefer completely sulfate-free formulations
Usage tips
Safety summary
Generally recognized as safe for rinse-off cosmetic use at typical concentrations. Mild irritation or dryness is possible for sensitive individuals, but it is considered less irritating than sodium lauryl sulfate.
Research notes
Studies show that alkyl ether sulfates with longer carbon chains (like C12-13) are milder than shorter-chain sulfates. However, individual skin tolerance varies, and those with compromised barriers may still experience irritation.
Common label clues
- Typical concentration
- 1–15% in rinse-off products
- Regulatory status
- Approved for use in cosmetics in the US (FDA), EU, and other major markets. Concentration limits may apply in some regions for leave-on products.
- Common uses
- Shampoos, Body washes, Facial cleansers, Shower gels
- Environmental note
- As a synthetic surfactant, it may not be readily biodegradable in all conditions. However, many modern formulations use it at low levels to minimize environmental impact.
Good to know
- The 'C12-13' refers to the carbon chain length of the fatty alcohol used, which influences its mildness and foaming properties.
- TEA (triethanolamine) is used to neutralize the sulfate, making it water-soluble and milder.
Common questions
What is TEA-C12-13 Pareth-3 Sulfate in beauty products?
This is a cleansing ingredient that helps water mix with oil and dirt so they can be rinsed away. It's a type of sulfate, but it's considered gentler than harsher sulfates like SLS because it has a larger, less-penetrating molecule. It creates a good lather and is often used in shampoos and body washes.
What does TEA-C12-13 Pareth-3 Sulfate do in a beauty product?
It reduces the surface tension between water and oil, allowing oils and dirt on the skin or hair to be emulsified and washed away. Its larger molecular structure makes it less irritating than smaller sulfates, but it still effectively removes sebum and product buildup.
Is TEA-C12-13 Pareth-3 Sulfate safe for most people?
Generally recognized as safe for rinse-off cosmetic use at typical concentrations. Mild irritation or dryness is possible for sensitive individuals, but it is considered less irritating than sodium lauryl sulfate.
Who should be careful with TEA-C12-13 Pareth-3 Sulfate?
Individuals with very dry, eczema-prone, or compromised skin barriers Those who prefer completely sulfate-free formulations
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.