Lash and brow patch test form: what to test, how to record it, and the waiver
Every chemical product on a lash and brow menu can cause a reaction: adhesive, tint, henna, lift and lamination solution. A patch test is how you look for one before the full service instead of after. But a test only protects you and your client if it is recorded, and if she understands what a clear result does and doesn't mean. That is the job of my patch test consent and record.
This exact form is built into SlickChart: send it to your client's phone to sign ahead of her test, and the prep guide goes home with her.
A record first, a consent second
The top of the form is a record: client name and phone, the planned service, known allergies or sensitivities, and the appointment date. Months from now, if a question comes up about whether she was tested, this page answers it.
What gets tested, where, and when
My form explains the test in plain terms. Each planned product is tested before the first service and checked at 24 and 48 hours. Then, by product:
- Adhesive: a few extensions at the outer corner, or a dot behind the ear.
- Tint or henna: behind the ear or inner elbow, 48 hours ahead, and whenever the product changes.
- Lift or lamination solution: behind the ear.
"Whenever the product changes" is the easy one to forget when you switch brands. Writing it into the client's own form makes it a rule rather than a memory.
The sentence clients need most
A clear test can't rule out a future reaction; adhesive sensitivity can develop after many sets.
Clients tend to read a clear test as permission forever. My service consents repeat the idea: the extension form says a clear test doesn't rule out a reaction later, and the tint form says the same. My intake asks every new client about any reaction before, like itching, swelling or lash loss, and has her acknowledge that reactions to lash glue, tint or solutions can happen even after many problem-free visits. The message is the same from the first form to the last.
Consent or decline, both on record
The client picks one: she consents to the patch test, or she declines it. Each choice has its own acknowledgement.
If she consents, she agrees that if the spot burns, blisters, swells or itches badly, she will wash it with cool water and call you, and that trouble breathing or swelling of the face or throat means calling 911.
If she declines, she confirms she was offered a test and chose not to have one. She acknowledges that an allergy to the lash adhesive, tint, henna or lift solution won't be found before her service, and that a reaction could cause eyelid or skin swelling, need medical care, or mean her extensions have to be removed. The waiver releases the business from claims related to a reaction a patch test might have shown, "as far as state law allows."
That last phrase matters. How far any waiver reaches depends on where you work, so ask your state board, and an attorney if you need one, before relying on any wording, mine included. My service consents link back to this form: the lift, lamination and tint consents each ask the client to confirm she had a patch test with no reaction, or declined and signed the waiver.
Where the test sits in the prep timeline
My prep guide puts it at 48 hours before: patch test done for tint, henna, lift solution or lash adhesive. It also lists any redness or itching from the patch test as a reason to call and reschedule. The same guide covers what to pause and when, from isotretinoin 6 months out to clean lashes and no mascara on the day, so the test arrives as one step in the prep rather than a surprise.
The intake rounds it out. Its allergy question lists lash glue (cyanoacrylate), superglue or nail glue, hair dye (PPD), henna or brow tint, perm or lift solution, latex, medical or surgical tape, and fragrance, then asks what reaction she had, and to what. A yes there is a reason to talk it through and test with care. It is not a diagnosis, and anything that looks medical gets referred out.
For how the test ties into each service, see my lash extension consent form and brow tint and henna consent form posts.
Questions to decide for your own practice
- Will you require a patch test for every new client, or offer it and accept a signed decline?
- Will you re-test regulars on a schedule, or only when a product changes?
- Where will you record what you saw at 24 and 48 hours?
- What does your state board require? Consent rules, waivers and scope of practice vary by state, so check with yours. This post is not legal or medical advice.
Use this form with your clients
SlickChart has this exact patch test consent and record built in for subscribers, along with the intake and prep guide. The form goes to the client's phone to sign before the visit, or she signs on your device in the room, and any contraindication she checks on her intake is flagged for you. The prep guide and aftercare land in the client's own app, styled with your logo, and it all works alongside the Square account you already have. If that would save you paperwork, try SlickChart.
Prefer paper? The printable patch test consent and record, along with the rest of my lash and brow forms, is in my Etsy shop, ready to print or edit in free Canva.