Sodium Laureth Sulfate (SLES)
sles · sodium laureth sulfate · sodium lauryl ether sulfate
Milder than SLS but can be contaminated with 1,4-dioxane (a probable carcinogen) during manufacturing.
Concerns
- 1,4-dioxane contamination — probable carcinogen (EPA Group B2)
- Skin irritation at high concentrations
- Environmental persistence
Regulatory flags
- ⚑Ethoxylation may introduce 1,4-dioxane (IARC Group 2B) as impurity
Commonly found in
Safer swaps we'd look at
Branch Basics
Branch Basics Concentrate
One bottle replaces your entire cleaning cabinet.
Why it's cleaner
No flagged ingredients in our current review; key ingredients include Coco glucoside, Decyl glucoside, Chamomile extract.
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.
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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