Ingredient review
Stearamide DEA
INCI: Stearamide DEA
An effective foam booster and thickener, but may cause irritation or clog pores in sensitive individuals.
In plain English
Stearamide DEA is a synthetic ingredient that helps create a rich, foamy lather in cleansers and shampoos. It also thickens the product so it feels more luxurious. However, it can be drying or irritating for some people, especially those with sensitive or acne-prone 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.
Main practical flags: irritation is moderate; clogging risk is moderate.
- Source
- synthetic
- Evidence
- moderate
- Irritation
- moderate
- Clogging risk
- moderate
Quick decision guide
Useful, but context matters
Stearamide DEA can be useful, but watch for some irritation potential and 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 Stearamide DEA.
- 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
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
Stearamide DEA is a diethanolamide derivative of stearic acid, a fatty acid. It is a white to off-white waxy solid used primarily as a foam stabilizer and viscosity builder in personal care products.
How it works
It works by interacting with other surfactants to stabilize foam and increase the thickness of a liquid product. This gives a richer, creamier lather and a more substantial feel when applied.
Pros
Excellent foam booster
Creates a dense, stable lather that many users find satisfying in shampoos and body washes.
Improves product texture
Thickens liquid cleansers, giving them a more luxurious, creamy feel that spreads easily.
Cons and cautions
Potential skin irritation
Can cause stinging, redness, or dryness, especially for those with sensitive skin or eczema.
May clog pores
Has a moderate comedogenic rating, meaning it could contribute to breakouts in acne-prone individuals.
Best for
- People who enjoy a rich lather in cleansers
- Those with normal to oily skin not prone to irritation
Use caution if
- Individuals with sensitive or easily irritated skin
- Those with acne-prone or clog-prone skin
Usage tips
Safety summary
Generally safe for most people in rinse-off products at low concentrations. However, it can be irritating or comedogenic for sensitive or acne-prone skin. Avoid if you have known allergies to DEA compounds.
Research notes
Studies show Stearamide DEA is a mild to moderate irritant in animal and human patch tests. The CIR panel concluded it is safe in current usage patterns, but some consumer groups recommend caution for sensitive individuals.
Common label clues
- Typical concentration
- 0.5% to 5%
- Regulatory status
- Approved for use in cosmetics by the FDA and the European Commission, with concentration limits in some regions. The Cosmetic Ingredient Review (CIR) panel has deemed it safe as used.
- Common uses
- Shampoos, Body washes, Facial cleansers, Lotions
- Environmental note
- Stearamide DEA is not readily biodegradable and may persist in water systems. Some manufacturers are moving toward more eco-friendly alternatives.
Good to know
- Stearamide DEA is often found in rinse-off products, so contact time with skin is limited.
- Some regulatory bodies have raised concerns about diethanolamine (DEA) compounds, though Stearamide DEA is considered safe at typical cosmetic levels.
Common questions
What is Stearamide DEA in beauty products?
Stearamide DEA is a synthetic ingredient that helps create a rich, foamy lather in cleansers and shampoos. It also thickens the product so it feels more luxurious. However, it can be drying or irritating for some people, especially those with sensitive or acne-prone skin.
What does Stearamide DEA do in a beauty product?
It works by interacting with other surfactants to stabilize foam and increase the thickness of a liquid product. This gives a richer, creamier lather and a more substantial feel when applied.
Is Stearamide DEA safe for most people?
Generally safe for most people in rinse-off products at low concentrations. However, it can be irritating or comedogenic for sensitive or acne-prone skin. Avoid if you have known allergies to DEA compounds.
Who should be careful with Stearamide DEA?
Individuals with sensitive or easily irritated skin Those with acne-prone or clog-prone skin
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.