Allergy to Permanent Makeup Pigments is not common, however developing an allergy can always be a risk.
On your Medical History and Consent documentation, you will be required to either waive and allergy test, or request an allergy patch test.
Having a patch test will show up anyone who immediately reacts, but an allergy can show up weeks or months in future. So having an allergy patch test for pigment sensitivity before permanent makeup may not be conclusive unless your skin reacts immediately.
The decision is entirely yours, but if you feel uncertain then it would be best to come in for a spot test at least 72 hours before your intended procedure.
Cost of Allergy Test: R250