Specimen No. 0020
AvoidSyntheticsurfactantemulsifier
DEA / TEA (Diethanolamine / Triethanolamine)
diethanolamine · dea · triethanolamine
Foam-boosting amines that can react with nitrites in formulas to form nitrosamines — probable carcinogens. EU restricts use.
high confidence
Researched April 18, 2026Specimen 0020DEA / TEA (Diethanolamine / Triethanolamine)
Concerns
- Can form carcinogenic nitrosamines when combined with nitrite contaminants
- EU restricts DEA in cosmetics
- Skin and respiratory irritant at higher concentrations
- Possible hormone disruption
Regulatory flags
- ⚑DEA banned in EU cosmetics — IARC Group 2B
- ⚑California Prop 65 listed
Commonly found in
ShampooBody washFacial cleanserSunscreenHair dye
Safer swaps we'd look at
Based Bodyworks
BASED Body Wash
Sulfate-free, fragrance-free body wash with no hormone-disrupting ingredients.
Why it's cleaner
No flagged ingredients in our current review; key ingredients include Coco glucoside, Aloe vera, Glycerin.
Coco glucosideAloe veraGlycerinTea tree
View product Sources & references
Last researched: April 18, 2026
Research disclaimer: This rating is based on available peer-reviewed research and regulatory assessments at the time of publication. It is not medical advice. Consult a qualified professional for personal health or skin concerns.
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