Formaldehyde (Nail Hardener/Keratin Treatment) COSHH Data Sheet UK
A HSE-format UK COSHH data sheet reference for Formaldehyde (Nail Hardener/Keratin Treatment) (also known as Formaldehyde, Formalin, Methanal). Covers workplace exposure limits from HSE EH40/2005, GHS hazard classification, control measures, PPE, storage, spillage and emergency procedures. Use the data here to complete your own COSHH assessment, or generate a workplace-specific PDF in 5 minutes.
GHS Hazard Classification
Carcinogen Cat 1B (H350), Mutagen Cat 2 (H341), Acute Toxicity Cat 3 (H301, H311, H331), Skin Corrosive (H314), Skin/Respiratory Sensitiser (H317, H334).
Health Effects
Classified as a human carcinogen. Some keratin smoothing treatments release formaldehyde when heated, exposing stylists to harmful levels. UK HSE has issued warnings about salon exposure. Long-term risks include nasopharyngeal cancer. Immediate risks include severe respiratory irritation, skin burns, and asthma.
Routes of Exposure
- Inhalation (primary)
- Skin contact
- Eye contact
Workplace exposure to Formaldehyde (Nail Hardener/Keratin Treatment) is regulated under the Control of Substances Hazardous to Health Regulations 2002. Employers must reduce occupational exposure to as low as reasonably practicable, following the HSE hierarchy of control.
Recommended Control Measures
Applied in the HSE hierarchy of control order: eliminate, substitute, engineering, administrative, PPE.
- Prefer formaldehyde-free alternatives - do not use products that release formaldehyde on heating
- If used, requires local exhaust ventilation and air monitoring
- Health surveillance for staff mandatory
- Detailed COSHH assessment required with monitoring records
Recommended PPE
- Nitrile gloves
- Respiratory protection (organic vapour cartridge respirator)
- Eye protection (chemical splash goggles)
- Full apron
Emergency Procedures
Data Sources
HSE Carcinogens Regulations; IARC Monograph 100F; UK salon safety warnings; EH40/2005 Table 1
Frequently asked questions
Is a COSHH assessment required for Formaldehyde (Nail Hardener/Keratin Treatment)?
Yes. Any UK employer whose staff work with Formaldehyde (Nail Hardener/Keratin Treatment) must hold a written COSHH assessment under the Control of Substances Hazardous to Health Regulations 2002, Regulation 6. The assessment must be reviewed at least annually and immediately if circumstances change. You can generate one free (watermarked) using our tool.
What is the Workplace Exposure Limit for Formaldehyde (Nail Hardener/Keratin Treatment)?
Workplace Exposure Limits (WELs) for Formaldehyde (Nail Hardener/Keratin Treatment) are published by HSE in EH40/2005. Values come as an 8-hour time-weighted average (TWA) and 15-minute short-term exposure limit (STEL). Where a formal WEL has not been set for this substance, we mark the field as "Not established" and rely on hazard-based controls following the hierarchy of control.
What PPE is needed for Formaldehyde (Nail Hardener/Keratin Treatment)?
The recommended PPE typically includes: Nitrile gloves; Respiratory protection (organic vapour cartridge respirator); Eye protection (chemical splash goggles); Full apron. Actual PPE requirements depend on how Formaldehyde (Nail Hardener/Keratin Treatment) is used in your specific workplace, how often, and existing engineering controls. Your COSHH assessment should specify PPE only after engineering and administrative controls have been considered.
Do I need health surveillance for workers using Formaldehyde (Nail Hardener/Keratin Treatment)?
Health surveillance under COSHH 2002 Regulation 10 is required for substances that are respiratory sensitisers, skin sensitisers, or carcinogens where exposure is significant. If Formaldehyde (Nail Hardener/Keratin Treatment) appears on the HSE health surveillance list for your industry, workers with regular exposure should have baseline and annual monitoring.
Generate a workplace-specific COSHH assessment for Formaldehyde (Nail Hardener/Keratin Treatment)
Answer 6 quick questions about your workplace and download a 7-page HSE-format PDF. First one is free (watermarked). Paid bundles from £29 for 10 clean PDFs.
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References
- Control of Substances Hazardous to Health Regulations 2002 (SI 2002/2677), UK legislation.gov.uk
- HSE EH40/2005 Workplace Exposure Limits, Health and Safety Executive
- COSHH basics: What you need to know, HSE
- COSHH essentials, control guidance for employers, HSE
- L5, Approved Code of Practice and guidance, HSE