One-page reference card for keratin treatment & formaldehyde risks in salons.
Keratin smoothing treatments have become one of the most requested — and controversial — salon services globally[1]. Many formulations contain formaldehyde or formaldehyde-releasing substances (methylene glycol) at levels that can exceed occupational exposure limits during heat activation. The EU limits formaldehyde in cosmetics to 0.2% (as preservative); OSHA sets a permissible exposure limit of 0.75 ppm TWA[2].
| Indicator | Baseline | Target | Time | Measurement |
|---|---|---|---|---|
| Formaldehyde air monitoring | Never | Per treatment session | Immediate | Badge/tube dosimeter |
| Ventilation rate during treatment | Unknown | ≥10 ACH or local exhaust | 1 month | Engineering assessment |
| Client consent form completion | 50% | 100% | Immediate | Signed form |
| Product formaldehyde content check | Unknown | 100% <0.2% (EU) | Before purchase | SDS/CoA |
| Staff respiratory symptom tracking | Never | Monthly self-report | 1 month | Health questionnaire |
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