SPMU & microblading patch test record
An SPMU patch test record should log the client reference, the pigment and numbing agent tested with their batch numbers, the test site, the application date, the read date 24–48 hours later, and the result (pass or reaction). Keeping this record is the single most important piece of evidence if a client later claims an allergic reaction.
What to record on an SPMU patch test
| Field | Why it matters |
|---|---|
| Client reference | Links the test to the consent and treatment record. |
| Product / pigment + numbing agent | Identifies exactly what was tested. |
| Batch / lot number | Traceability if a product is recalled or implicated in a reaction. |
| Test site & application date | Standard behind-ear or inner-arm placement. |
| Read date (24–48h) | When the result was assessed. |
| Result (pass / reaction) | Determines whether the treatment can proceed. |
How long is a patch test valid?
There's no statutory validity period, so studios set their own (commonly 6–12 months) in line with their insurer. SkinReady lets you set a validity window and will block booking a pigment or numbing treatment unless a passed patch test exists within it — and reminds you (Pro) before it expires.
Frequently asked questions
- When should an SPMU patch test be read?
- Typically 24–48 hours after application, and the result (pass or reaction) should be recorded with the read date.
Sources
- Local Government (Miscellaneous Provisions) Act 1982, Part VIII
Related guides
Microblading & SPMU consent form template (UK)
A free UK microblading and SPMU consent form template covering medical history, contraindications, colour-shift acknowledgement and the under-18 ban. Use it or digitise it.
Permanent makeup & SPMU aftercare form
Free UK permanent makeup aftercare form template covering healing instructions, what to avoid, and the client's acknowledgement — recorded against each treatment.