Chemical hair services (colour, bleach, perms) Risk Assessment Template

Typical hazards & measures

• Allergic reaction to persulfate lighteners — Screen for asthma or past bleach reactions; choose low-dust powders and mix slowly in ventilated areas. Keep product off skin, use gloves/eye protection, check sensation regularly, and remove immediately if tingling escalates to burning; document batch and timing for traceability.
• Inadequate rinsing or neutralising — Confirm water temperature/pressure before mixing; plan uninterrupted rinses for critical removal stages. Rinse until water runs clear, follow with neutralising or pH-balancing steps per brand, and test scalp comfort before finishing; document any deviations from protocol.
• Relaxer scalp sensitivity and burns — Protect hairline/ears with petroleum jelly, avoid abraded skin, and section cleanly. Apply per brand, monitor sensation constantly, and neutralise thoroughly once the target is reached. Record sensitivities and adjust strength, timing or technique for future services.
• Allergic reaction to direct dyes and toners (non-oxidative) — Review dye reaction history; perform a small behind-ear/inner-arm test with the exact toner/shade, avoiding damaged skin. Use minimal contact time, remove at the first sign of irritation, provide aftercare advice, and record product, batch and timing.
• Foil heat build-up on scalp — Use thin, even sections and appropriate developer; leave air gaps and avoid hood dryers over dense foil packs. Monitor by touch, remove any hot packet immediately, cool the scalp if needed, and adjust placement or strength to prevent thermal hotspots on future visits.