Quick answer
UK salons must assess the risks from the chemicals they use under COSHH, and write it down if they employ five or more people. Patch tests before colour services come from manufacturer instructions rather than a specific law, but a dated record is your evidence if a client reacts. Skin-piercing and similar treatments usually need council registration or a licence.
Law, guidance or good practice?
| Record | Where it comes from | Status |
|---|---|---|
| COSHH assessment | Control of Substances Hazardous to Health | Law. Written record if you have five or more employees |
| Gloves, hand care and skin checks | HSE hairdressing guidance | HSE guidance on how to meet COSHH |
| Patch test | Product instructions | Manufacturer guidance; check your insurance policy |
| Skin-piercing hygiene | Council registration and byelaws | Law where the treatment needs registration |
| Electrical testing | Electricity at Work Regulations, HSE FAQs | Law requires safe equipment; no fixed test interval |
| Tool cleaning log | Good practice | Not specified by law for most hair and nail work |
COSHH in a salon, in plain terms
List every product that carries a hazard warning: colours, bleach, perm and relaxer solutions, nail monomers and removers, disinfectants and cleaning products. For each one, note the harm it can cause, who uses it, and how you control the risk. HSE's key messages for hairdressers are a good starting point: wear disposable non-latex gloves for shampooing, colouring and bleaching, change gloves between clients, and check your skin regularly for early signs of problems.
HSE's COSHH overview gives the example of a hairdresser with dermatitis from wet work, whose employer brought in gloves and regular skin checks. Logging those checks monthly takes a minute and shows the control is working.
Patch tests
Many permanent and some semi-permanent hair dyes contain PPD, which the NHS notes can irritate skin or cause allergic reactions. The NHS advises following the instructions that come with the dye. Most colour brands tell you to carry out a skin allergy alert test before each colour service, commonly 48 hours ahead, but timings vary by product. Record the date, the product, the result and who did it.
Tool hygiene between clients
Clean tools of hair and debris, then disinfect them using a product suitable for the job and follow its contact time. Single-use items such as nail files and buffers should be binned after each client. A simple between-client tick and an end-of-day sign-off, with a photo of the disinfection set-up, is usually enough to show the routine is real.
On the phone in your pocket
LogBooks Hub turns patch tests, tool cleaning, skin checks and fire tests into quick tasks with reminders. Entries are timestamped, you can attach a photo, and everything exports as a one-click audit pack PDF. It works on any device in the browser, or on the iOS and Android apps. Plans start from £30/month.

