Toluene: What the SCCS Concluded About Safety in Cosmetics
Toluene safety summary from SCCP/1029/06: SCCS conclusion, NOAEL, maximum concentration or conditions, and source-linked context.
Toluene is covered by SCCP/1029/06, an SCCS-family cosmetic safety opinion dated 2006-10-10. The opinion conclusion for this opinion is direct enough for a substance-specific summary: For the present evaluation, measurements for two situations of nail product use were available:
Core Opinion Facts
- Opinion: SCCP/1029/06
- Opinion date: 2006-10-10
- Primary substance: Toluene
NOAEL Values Cited in the Opinion
The no-observed-adverse-effect data below is shown only from the SCCS source fields for this opinion. It is not a calculated margin-of-safety output.
| Endpoint | Value | Unit | Study context |
|---|---|---|---|
| acute inhalation: headache, dizziness, intoxication, irritation, sleepiness | 40 | ppm | human, inhalation, experimental human exposure |
| impaired neuropsychological function in performance tests | 75 | ppm | human, inhalation, experimental human exposure (performance tests) |
| developmental toxicity: lower birth weight, delayed postnatal development; developmental neurotoxicity; reproduction/fertility | 600 | ppm | rat (NOAEC); human LOAEC 88 ppm / 330 mg/m3; rat LOAEC for developmental neurotoxicity 1200 ppm, inhalation, developmental/reproductive toxicity |
Maximum Concentration or Conditions
Conditions from the Opinion
For the present evaluation, measurements for two situations of nail product use were available:; - Home use conditions (non-ventilated rooms): toluene air levels of 1 - 4 ppm; - Client exposure in (ventilated) professional nail studios: 0.26 ppm; The duration of exposure is less than 30 min (typical application times 10-20 min).
How to Read This Safety Conclusion
The key point for formulators is the match between the named ingredient, the cited NOAEL, and the SCCS conclusion. A NOAEL is a study point of departure, not a standalone permission to use Toluene at any level. The SCCS conclusion and any concentration or product-type conditions remain the controlling context for cosmetic use.
The source also matters because SCCS opinions can be ingredient-specific. The internal ingredient page for Toluene should be treated as the substance hub, while SCCP/1029/06 is the opinion-level page for the committee record.
Practical Formulation Takeaway
For a formula review, start with the identity check: confirm the INCI name, CAS number, and opinion reference align with the material in the formula. Then compare the intended product type against the SCCS concentration or condition language above. If the formulation uses a different exposure route, product category, or concentration basis, the SCCS conclusion should not be stretched beyond what SCCP/1029/06 actually assessed.
Review Notes
The conservative reading is to keep Toluene tied to this exact opinion. The opinion number, date, NOAEL table, and condition language all travel together. If a later formula review uses a different CAS identity, product type, or concentration basis, the source should be checked again rather than reusing this summary as a blanket answer.
This page is therefore an indexable safety summary, not a replacement for the committee text. It gives search readers the core SCCS facts for Toluene and keeps the source handle visible for audit.
Source
- SCCS opinion: SCCP/1029/06
- Source file: sccp_o_076.pdf
- Extraction JSON: Source documentation archived.