Ingredient review
TEA-C12-14 Alkyl Sulfate
INCI: TEA-C12-14 Alkyl Sulfate
A mild foaming cleanser that effectively removes dirt and oil, but may be drying for very sensitive or dry skin.
In plain English
TEA-C12-14 Alkyl Sulfate is a cleansing ingredient that helps water mix with oil and dirt so they can be rinsed away. It creates a rich lather in products like face washes and shampoos. While it is milder than some other sulfates (like sodium lauryl sulfate), it can still strip natural oils from the skin if used too often or left on too long.
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-C12-14 Alkyl 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-C12-14 Alkyl 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 surfactant made from coconut or palm-derived fatty alcohols combined with triethanolamine (TEA) and sulfuric acid. It belongs to the alkyl sulfate family, which are common foaming agents in personal care products.
How it works
It reduces the surface tension between water and oil, allowing water to lift away sebum, makeup, and environmental debris. The molecule has a water-loving head and an oil-loving tail, which surrounds and suspends impurities so they can be washed off.
Pros
Milder than common sulfates
Compared to sodium lauryl sulfate, TEA-C12-14 Alkyl Sulfate is less harsh on the skin barrier, making it a better choice for daily use on normal skin.
Effective foaming cleanser
It produces a rich, creamy lather that helps remove oil, dirt, and makeup residue, giving a satisfying clean feel.
Cons and cautions
Potential for dryness
Even though it is milder, it can still strip natural oils if used too frequently or in high concentrations, especially for dry or sensitive skin.
Not suitable for all skin types
Those with compromised barriers or conditions like eczema may find it irritating, leading to redness or tightness after washing.
Best for
- People with normal to oily skin who enjoy a foamy cleanser
- Those looking for an effective but gentler alternative to sodium lauryl sulfate
Use caution if
- Individuals with eczema, rosacea, or very dry skin
- Anyone who finds sulfate cleansers too stripping or irritating
Usage tips
Safety summary
TEA-C12-14 Alkyl Sulfate is considered safe for use in rinse-off cosmetics at typical concentrations. It is less irritating than harsher sulfates but can still cause dryness or irritation in sensitive individuals. Avoid contact with eyes.
Research notes
Studies show that alkyl sulfates with longer carbon chains (C12-14) are milder than shorter-chain variants. The Cosmetic Ingredient Review (CIR) panel has evaluated similar alkyl sulfates and found them safe for cosmetic use when formulated to minimize irritation.
Common label clues
- Typical concentration
- 1-15% in rinse-off products
- Regulatory status
- Approved for use in cosmetics by the FDA and the European Commission, with concentration limits in leave-on products. Generally recognized as safe when formulated correctly.
- Common uses
- Facial cleansers, Body washes, Shampoos, Shower gels
- Environmental note
- Derived from plant-based fatty alcohols, but the manufacturing process involves synthetic chemistry. Biodegradability is moderate; some sulfates can persist in aquatic environments.
Good to know
- This ingredient is often found in 'sulfate-free' formulas that still contain mild sulfates—always check the full INCI list.
- TEA (triethanolamine) is used to neutralize the acid form of the sulfate, making it more water-soluble and less irritating.
Common questions
What is TEA-C12-14 Alkyl Sulfate in beauty products?
TEA-C12-14 Alkyl Sulfate is a cleansing ingredient that helps water mix with oil and dirt so they can be rinsed away. It creates a rich lather in products like face washes and shampoos. While it is milder than some other sulfates (like sodium lauryl sulfate), it can still strip natural oils from the skin if used too often or left on too long.
What does TEA-C12-14 Alkyl Sulfate do in a beauty product?
It reduces the surface tension between water and oil, allowing water to lift away sebum, makeup, and environmental debris. The molecule has a water-loving head and an oil-loving tail, which surrounds and suspends impurities so they can be washed off.
Is TEA-C12-14 Alkyl Sulfate safe for most people?
TEA-C12-14 Alkyl Sulfate is considered safe for use in rinse-off cosmetics at typical concentrations. It is less irritating than harsher sulfates but can still cause dryness or irritation in sensitive individuals. Avoid contact with eyes.
Who should be careful with TEA-C12-14 Alkyl Sulfate?
Individuals with eczema, rosacea, or very dry skin Anyone who finds sulfate cleansers too stripping or irritating
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.