Ingredient review
Stearamidoethyl Ethanolamine
INCI: Stearamidoethyl Ethanolamine
A mild surfactant and foam booster that helps cleansers feel richer, but may be slightly pore-clogging for acne-prone skin.
In plain English
Stearamidoethyl ethanolamine is a synthetic ingredient that helps shampoos and body washes create a thick, creamy lather. It also makes hair feel softer and less tangled after washing. Think of it as a helper that improves the texture and feel of your cleanser, but it's not a primary cleaning agent.
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 low; clogging risk is moderate.
- Source
- synthetic
- Evidence
- moderate
- Irritation
- low
- Clogging risk
- moderate
Quick decision guide
Useful, but context matters
Stearamidoethyl Ethanolamine can be useful, but watch for possible clogging concerns.
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 Stearamidoethyl Ethanolamine.
- 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
moderateMay be fine for many users but deserves caution if you are breakout-prone.
Evidence level
moderateThere is useful support, but formula details and claim strength still matter.
What it is
A fatty acid amide derived from stearic acid (a saturated fat) and ethanolamine. It is a white to off-white waxy solid at room temperature and is used to modify the properties of surfactant systems.
How it works
In a formula, it works alongside primary surfactants (like sodium lauryl sulfate) to stabilize foam, increase viscosity, and reduce irritation. It also deposits a thin conditioning film on hair or skin, which can improve softness and reduce static.
Pros
Improves lather quality
Makes the foam from your cleanser feel thicker and more luxurious, which can make washing feel more satisfying.
Mild conditioning
Leaves hair and skin feeling softer and less stripped after washing, which is helpful for dry or damaged hair.
Cons and cautions
Potential pore clogging
Because it is a fatty amide, it may contribute to clogged pores in acne-prone individuals, especially in leave-on products.
Not a standalone cleanser
It is always used in combination with other surfactants, so it doesn't clean on its own and adds complexity to formulas.
Best for
- People who enjoy a rich, creamy lather in their shampoos or body washes
- Those with normal to dry hair looking for extra softness
Use caution if
- Individuals with very oily or acne-prone skin may want to avoid it in leave-on products
Usage tips
Safety summary
Generally recognized as safe for use in rinse-off cosmetics at typical concentrations. Mild irritation potential is low, but it may be mildly comedogenic for some individuals. No serious safety concerns have been reported.
Research notes
Limited peer-reviewed studies specifically on stearamidoethyl ethanolamine. Its safety is inferred from related fatty amides and long use in cosmetics. The Cosmetic Ingredient Review (CIR) has reviewed similar amides and found them safe as used.
Common label clues
- Typical concentration
- Typically 0.5–3% in rinse-off products
- Regulatory status
- Approved for use in cosmetics in the US (FDA) and EU (CosIng) with no specific concentration restrictions.
- Common uses
- Shampoos, Body washes, Facial cleansers, Conditioners
- Environmental note
- Synthetic ingredient; biodegradability data is limited, but it is not known to be a major environmental concern.
Good to know
- It is sometimes listed near the end of an ingredient list because it is used at low concentrations.
- It is not the same as stearamide or stearamidopropyl dimethylamine, though they are related.
Common questions
What is Stearamidoethyl Ethanolamine in beauty products?
Stearamidoethyl ethanolamine is a synthetic ingredient that helps shampoos and body washes create a thick, creamy lather. It also makes hair feel softer and less tangled after washing. Think of it as a helper that improves the texture and feel of your cleanser, but it's not a primary cleaning agent.
What does Stearamidoethyl Ethanolamine do in a beauty product?
In a formula, it works alongside primary surfactants (like sodium lauryl sulfate) to stabilize foam, increase viscosity, and reduce irritation. It also deposits a thin conditioning film on hair or skin, which can improve softness and reduce static.
Is Stearamidoethyl Ethanolamine safe for most people?
Generally recognized as safe for use in rinse-off cosmetics at typical concentrations. Mild irritation potential is low, but it may be mildly comedogenic for some individuals. No serious safety concerns have been reported.
Who should be careful with Stearamidoethyl Ethanolamine?
Individuals with very oily or acne-prone skin may want to avoid it in leave-on products
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.