Sodium Lauryl Sulfate (SLS)
Also: SLS · sodium dodecyl sulfate · SDS · sodium laurilsulfate
Mostly fine but irritating — not a hormone disruptor or carcinogen; the main concern is skin and scalp irritation with daily use.
Testosterone & hormonal load
SLS is an effective surfactant with no credible evidence of endocrine disruption or testosterone effects in humans. The cancer myth circulating online is not supported by scientific consensus. The primary concerns are disruption of the skin barrier with daily use, scalp irritation, and potential worsening of certain dermatological conditions. Men with sensitive skin or scalp conditions may benefit from SLS-free alternatives.
Found in.
Two jurisdictions, two different verdicts.
Permitted in rinse-off and leave-on cosmetics. Not restricted for endocrine disruption concerns.
GRAS in food and cosmetics. No restrictions for endocrine disruption.
The receipts.
- [01]CIR Final Report — Safety of Sodium Lauryl Sulfate (2005)www.cir-safety.org/sites/default/files/SLS.pdf
- [02]Treffel & Gabard 1996 — Measurement of sodium lauryl sulfate-induced skin irritation (PubMed)pubmed.ncbi.nlm.nih.gov/8891003/
- [03]Branco et al. 2005 — Long-term repetitive sodium lauryl sulfate-induced skin irritation (PubMed)pubmed.ncbi.nlm.nih.gov/16283906/
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