Brow Henna and Brow Lamination — Step-by-Step Salon Procedure [2026]

Brow henna (powder or cream), brow lamination and brow lifting are three treatments with different allergy risk levels and different sanitary requirements. Each one requires a patch test and proper documentation in the client card.

This article breaks down the salon procedure for each of the three treatments: what to prepare, how to document it, what legal risks exist and how to reduce them.

Brow henna (PPD) — the classic with the highest allergy risk

Brow henna (paraphenylenediamine, PPD) is one of the most common contact allergens in the beauty industry. Allergic reactions occur in 1-3% of the population, and in people already sensitised to "natural" henna (lawsone) the rate is significantly higher.

Step-by-step procedure

1. 24 hours before the treatment: Patch test — 1 drop of product behind the ear, observe for 24h. Negative result = proceed.
2. Consultation: medical history — asthma, atopic dermatitis (AZS), pregnancy, medications, any previous reactions to henna or hair dye.
3. Client card: signature on the consent form, patch-test result recorded, brand and batch number of the product noted.
4. Skin prep: cleanse with micellar water, degrease with 70% alcohol.
5. Application: with a brush, thin layer, exposure time 5-15 min (depends on the brand).
6. Removal: water + cotton pads, gently. Do not rub.
7. Home aftercare: client does not wash brows for 12h, avoids oily creams, avoids sun exposure.

Legal risk

Allergic reactions after brow henna are the leading cause of civil claims in the beauty industry. A client may seek:

• Compensation for medical treatment (dermatologist, medication) — typically 500-3,000 PLN
• Damages for distress — 1,000-10,000 PLN
• Lost income (if the client lost work due to appearance) — no upper limit

With professional OC insurance: covered up to 100,000-500,000 PLN per incident. Without OC: out of your own pocket.

Brow lamination — thioglycolic acid + oil

Brow lamination is a "perm" for brows — it styles the hairs for 4-6 weeks using thioglycolic acid (lift) + neutraliser + oil.

Step-by-step procedure

1. Patch test 24h before: 1 drop of lifting product behind one ear, neutraliser behind the other. Observe.
2. Consultation: sensitive skin, atopic dermatitis, pregnancy, recent brow waxing (must be more than 7 days ago).
3. Cleanse brows with micellar water + degrease with alcohol.
4. Step 1 — lift: thioglycolic acid, 8-12 min under a silicone shield, hairs shaped to the desired direction.
5. Step 2 — neutralise: neutraliser for 8-12 min.
6. Step 3 — seal: nourishing oil.
7. Home aftercare: no water for 24h, no oily creams for 48h, no pool or sauna for 7 days.

Common complications

• Skin burn — over-exposure to the lift product causes a chemical burn. First aid: cold water + lanolin.
• Lightening of natural brow colour — rare but possible when combined with henna.
• Hairs "dropping" after 2-3 weeks — incorrect procedure; offer a complimentary redo.

Brow lifting — shaping without colour

Brow lifting = lamination without henna. The procedure straightens hairs only. Lower allergy risk than lamination, but the same patch test is required.

The procedure is practically identical to lamination, just without the henna step. Duration: 30 minutes instead of 60. Typical price: 100-180 PLN.

Client card — what data you must record

After each of the three treatments, record:

• Date of treatment
• Brand and batch number of the product (from the packaging)
• Product exposure time
• Patch-test result (date, result)
• Henna colour (if relevant)
• Special notes (e.g. client tends to react; hypoallergenic product used)
• Client's signature + yours
• Next appointment recommendation (every 4-6 weeks for henna, 6-8 weeks for lamination)

A ready-made brow and lash client card with fields for patch test, product brand, batch number and exposure time is included in the NailsReady START package (297 PLN).

Waiting times — industry recommendations

Treatment	Patch test	Frequency
Powder brow henna	24h	every 4-6 weeks
Cream brow henna	24h	every 3-4 weeks
Brow lamination	24-48h	every 6-8 weeks
Brow lifting	24h	every 6-8 weeks
Brow botox (regeneration)	48h	every 4-6 weeks

Absolute contraindications

• Active allergy to PPD or thioglycolic acid (confirmed by a dermatologist)
• Recent surgery near the brow area (less than 30 days ago)
• Active skin infection in the brow area (staph, herpes)
• First trimester of pregnancy (all chemical treatments) + first 3 months of breastfeeding
• Untreated autoimmune disease (lupus, scleroderma) — requires a doctor's written consent

Practical tips

• Always order 2 ml extra product — clients run late for patch tests, and a new batch may have a different formula
• Record the batch number on the client card — if a reaction occurs, you can trace the product instantly
• "Before" and "after" photo — with eyes blurred, for your portfolio and potential defence in a claim
• Note the first treatment date — after 12 months, refresh the patch test (skin reactivity changes over time)

FAQ

Does powder henna require a patch test if a client has had it monthly for 2 years?

Not at every appointment, but a new test is recommended every 12 months or whenever the product brand changes (different formulas = different allergens).

Can I refuse to treat a client who wants to skip the patch test?

Yes — it is a sanitary obligation of the salon, not the client's preference. Clients who ask to skip the test tend to report allergic reactions more often (paradoxically, people with allergy history are the ones who push to skip). Do not give in to pressure.

How much does professional liability insurance (OC) cost for a brow/lash salon?

800-2,500 PLN per year depending on the scope. Recommended providers: PZU, Generali, AXA. Choose a minimum coverage amount of 200,000 PLN per incident.

What to do if a client reacts despite a negative patch test?

Stay calm, document with photos, notify your OC insurer, and refer the client to a dermatologist. Do NOT admit liability or deny compensation — pass the case to your insurance.

Can I perform these treatments at the client's home?

A mobile salon also requires BDO registration, a sanitary procedure and a client card. Meeting the technical requirements (sink with hot water) is harder in a home setting, so Sanepid typically requires a fixed premises for chemical treatments.