Microblading Patch Test & Consent: What Clients Should Know
Posted by Studio 17 Ltd on
We patch-test every new microblading client 48 to 72 hours before treatment and ask you to complete an informed consent form. It protects your skin, your health, and your results. 18+ only with photo ID.
Quick answer
A patch test checks for sensitivity to pigment (and sometimes numbing products) before we work on your brows. Consent makes sure you understand the procedure, risks, aftercare and what to expect from healing.
Patch test Informed consent Aftercare UK clientsOn this page
Why we do a patch test
A patch test checks for sensitivity to the pigments (and, if used, numbing products) before we treat your brows. It’s a small dot of pigment placed discreetly on the skin. We treat patch testing as non-negotiable for safety.
When it’s done
Timing and who needs it
- Timing: 48 to 72 hours before your appointment.
- Who: all new clients.
- Repeat patch test: if it’s been 12+ months, your health or medication has changed, or we’re changing pigment brand or shade.
- If you’re travelling: ask for a postal patch test kit with instructions.
What happens during the patch test
- We cleanse the area (usually behind the ear or inner arm).
- We place a tiny pigment dot and, if applicable, a minute amount of topical anaesthetic.
- Keep the area dry and observe for redness, itching, swelling, heat, or irritation.
If you react
If you notice swelling, itching, heat, or a rash, message us and do not scratch. We’ll advise next steps and discuss safe alternatives.
Informed consent: what you’ll sign
At your consultation you’ll complete a health questionnaire and sign an informed consent form confirming you understand:
- the procedure and typical risks (irritation, infection, colour changes)
- aftercare and touch-up plan
- that services are 18+ only (bring photo ID)
- optional photo and video consent for before and after images
- how we handle your personal data and marketing preferences
A quick note on your data
Your health details are sensitive information. We store them securely and only use them for your care and any legal or insurance requirements.
Who cannot be treated (or may need GP clearance)
Some clients cannot be treated, and some may need medical clearance depending on their circumstances.
- Under 18s (photo ID required).
- Pregnant clients (and often breastfeeding clients).
- On isotretinoin (Roaccutane) now or within the last 6 months.
- Uncontrolled health conditions affecting healing, or active skin conditions in the brow area.
What to bring to your consultation
Bring
- Photo ID (18+)
- Medication list and allergy information
- Any previous brow treatment history
Also helpful
- Inspo photos of brows you like
- Your questions (we love those)
- Any upcoming holidays or events (helps plan healing time)
Book your patch test
Ready to start? Book your consultation and patch test and we’ll guide you step by step.
Disclaimer: This is general information and not medical advice. Local council and insurer requirements can vary by area.
FAQs
Do I need another patch test for a colour change or new brand?
Yes. New pigment or brand means a new test. Also retest after long gaps or health changes.
Will a negative patch test guarantee zero reaction later?
No test is 100% predictive, but it significantly reduces risk.
Do you need a patch test if you’ve had microblading before?
Often yes if it’s been 12+ months, your health has changed, or products are different.
Microblading consent and patch test form
Below is a copy-and-paste version you can use for your own records. For clients, we keep this simple and clear.
Open the form template
Client details
Client Name: ___________________________
Date of Birth (18+ only): _______________
Address: _______________________________
Phone: _________________________________
Email: _________________________________
Patch Test (48–72 hours before treatment)
☐ Patch test performed behind the ear / inner arm
☐ No adverse reaction observed
☐ Reaction observed (describe): _______________________________
Patch Test Date: ____________
Practitioner Signature: ____________________
Health & Safety Questionnaire (tick Yes/No)
Pregnant or breastfeeding? ☐ Yes ☐ No
Skin conditions in brow area (eczema, psoriasis, dermatitis)? ☐ Yes ☐ No
Allergies (lidocaine, pigments, latex, etc.)? ☐ Yes ☐ No
On isotretinoin (Roaccutane) now or within last 6 months? ☐ Yes ☐ No
Bleeding disorders or uncontrolled diabetes? ☐ Yes ☐ No
Recent cosmetic treatments (Botox, fillers, peels)? ☐ Yes ☐ No
Other conditions/medications: _______________________________
Consent to treatment
I confirm that:
• I have received a patch test at least 48 hours before treatment.
• I have disclosed my full medical history.
• I understand the nature of microblading, possible risks, and aftercare requirements.
• I consent to the procedure being carried out.
Client Signature: ________________________ Date: __________
Practitioner Signature: ___________________ Date: __________
Photo / marketing consent (optional)
☐ I consent to my before/after photos being used for marketing
☐ I do not consent to photo use
Data protection notice
Your health details are stored securely for care and any legal or insurance requirements. We do not share them without a lawful basis. You can withdraw marketing consent at any time.