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Beauty ingredient · Solvent

Toluene

CAS
108-88-3

A solvent used in some nail polishes.

  • Expert review pending
Moderate concern Level 2 of 4 How concern levels work

Strong evidence of harm at high intake, emerging evidence of harm, or a common allergen or irritant. The concern level sets how many points toluene costs on a product’s receipt.

What the evidence says

  • Reproductive or developmental toxicantRegulatory

    Listed under California Proposition 65 as a developmental toxicant (1991) and female reproductive toxicant (2009); IARC Group 3. [1][2]

Evidence tiers say how sure the evidence is, separately from how much it matters. About evidence tiers.

Rules around the world

WhereStatusDetailsDateSource
California (US) Warning label required Listed under Proposition 65 (developmental, 1991). Jan 1, 1991 [1]

“Banned” means explicitly prohibited or withdrawn after review; “not permitted” means never authorized there. We use each regulator’s own words.

Names GoodSwap recognizes on labels (3)
  • toluol
  • toluene
  • methylbenzene

Sources

  1. Proposition 65 List of Chemicals Known to the State to Cause Cancer or Reproductive Toxicity

    California Office of Environmental Health Hazard Assessment (OEHHA) · Jul 31, 2026 · Law

    “The date refers to the initial appearance of the chemical on the list.”

    oehha.ca.gov

  2. Agents Classified by the IARC Monographs, Volumes 1–142 (List of Classifications)

    International Agency for Research on Cancer (WHO) · IARC

    monographs.iarc.who.int