How to handle allergic reactions to products in the salon

Chemical colour, bleach, straightening agents, nail adhesives and cosmetic treatments can trigger irritation or an immune-mediated allergy in clients and staff. A product may have been used successfully many times before sensitisation occurs, so familiarity does not guarantee safety. Salon education should therefore treat ingredient knowledge, patch-test guidance, first aid and referral decisions as core professional skills.

Allergic contact dermatitis often appears 24 to 72 hours after exposure as itching, redness, swelling, a rash or blisters. Irritation may cause immediate burning or stinging, while hives, facial swelling or breathing difficulty can signal a rapid systemic reaction. These patterns can overlap, and salon professionals should describe what they observe rather than attempt a diagnosis.

In Australia, emergency help is available on Triple Zero (000), with 112 also connecting to emergency services from mobile phones. Whether working in a Sydney, Melbourne or Brisbane salon, staff need a rehearsed procedure for stopping services, calling emergency services and supporting a client until help arrives.

Recognise a reaction during the service

Watch for symptoms during and after every chemical service. Immediate burning, redness or tenderness may be irritation, while delayed itching, hives, eczema-like patches or blistering can indicate allergic contact dermatitis. Ask the client to report changes, especially after previous appointments or newly introduced products.

Facial or lip swelling, throat tightness, wheeze, faintness, collapse or widespread hives require emergency action. Do not wait to see whether the symptoms settle, and do not assume a rash is only skin irritation. Keep emergency contacts, the client’s action plan and an adrenaline autoinjector accessible if the client has one.

Record the product, batch, exposure time, symptoms and timing accurately. If the reaction occurs after the client leaves, give clear instructions on whom to contact and when urgent assessment is needed.

Respond safely at the chair

Stop the treatment, prevent further exposure and follow the manufacturer’s removal instructions. Hair colour or bleach can usually be rinsed thoroughly with lukewarm water and a gentle, properly formulated wash; nail material should be removed carefully without harsh solvents. Do not apply a neutraliser, household product or improvised remedy, as these can add irritants.

For a severe reaction, call 000 and follow the call handler’s instructions. If the person has a prescribed adrenaline autoinjector, a trained person should follow the device instructions or help the client administer it as directed by emergency services. Keep the person lying flat unless breathing is difficult, monitor them, and be prepared to begin CPR and use an AED if they become unresponsive and are not breathing normally.

For a mild reaction, arrange appropriate medical advice and document the event. The salon should not recommend prescription medication or tell a client to continue using the suspected product. A client with breathing symptoms should be treated as an emergency even if the skin reaction appears small.

Build a reliable consultation and referral process

Begin each booking with a structured allergy and skin-reaction check. Ask about reactions to hair dye, bleach, perm chemicals, adhesives, acrylics, fragrance, preservatives, latex and products used in the home. Note the date and severity of past reactions, treatments received and whether a clinician has provided an allergy or anaphylaxis plan.

Use an ingredient list and the supplier’s safety data sheet (SDS) to check a disclosed allergen rather than relying on a brand name. Professional colour ranges can contain paraphenylenediamine (PPD), bleach can contain persulphates, and nail systems may contain acrylates; ingredient names and concentrations vary between products and batches.

Follow the supplier’s patch-test directions where required, but do not present a quick salon skin test as medical allergy testing. If a client reports a previous severe reaction, seek clinical advice before proceeding and avoid the suspected product. Obtain consent before photographing a reaction and keep images securely.

Control product exposure and workplace risks

Stock professional products from reputable suppliers and retain the current label, ingredient information and SDS. Australian salons commonly use global ranges from brands such as Wella, Schwarzkopf Professional and L’Oréal Professionnel, often alongside service-only lines. Never decant products into unmarked bottles, mix brands without instructions or substitute a retail product for a professional formula.

Use the correct PPE, ventilation and application method. Gloves, masks, aprons and eye protection reduce exposure, although a glove material itself can cause allergy; change contaminated gloves and wash hands between clients. Clean tools and surfaces to prevent unintended transfer, then place removed product and disposable PPE in the correct waste stream.

Workplace controls matter for staff as well as clients. Under Australian work health and safety laws, employers should consult the applicable state regulator, such as SafeWork NSW, WorkSafe Victoria or WorkSafe Queensland, maintain first-aid procedures and make SDS accessible. Report new occupational symptoms promptly because repeated exposure can worsen sensitisation.

Make prevention part of every appointment

A strong salon protocol reduces guesswork and makes escalation consistent. Staff should know which products are in use, what ingredients they contain and what action to take when a client reports a sensitivity. If a client requests extra conditioning, colour gloss or nail enhancements, teams can offer add-ons safely only when the add-on is compatible with the allergy history and does not prolong exposure to the suspected trigger.

• Complete a documented allergy and reaction history before discussing chemical services, including the product type, symptoms, timing and medical advice received.
• Check every relevant ingredient and SDS rather than matching a client’s allergy to a brand name.
• Follow manufacturer patch-test and processing directions, and never perform a test on irritated or broken skin.
• Keep exposure controlled through correct PPE, ventilation, application methods and prompt rinsing.
• Train all staff together in emergency calls, adrenaline use, CPR and AED operation appropriate to their roles.
• Record incidents, preserve product details and arrange professional cleanup or disposal according to the SDS.

After an incident, quarantine the implicated product, check the supplier for notices and review the appointment workflow. Do not sell or reuse a product whose safety is uncertain. Explain in writing which service was stopped, what advice was given and how the client should follow up while protecting the person’s privacy.

Remember the standard for every reaction

Education turns these procedures into reliable practice. ESI Hubbuck training can connect product science and skin safety with the technical skills students need in professional salons: consultation, sanitation, client communication, workplace controls and calm emergency response. Practising the response in class helps future professionals act decisively rather than freeze when a reaction occurs.

The standard every salon should remember is simple: stop exposure, treat the person according to the severity, call 000 for warning signs and document everything. Careful preparation cannot prevent every allergy, but it can reduce exposure, support the client and keep a reaction from becoming a crisis.