Skin Allergy Test
Do a Skin Allergy Test on a small patch of skin 48 hours before every Hair Colour application.
Step 1
Using soap and water, wash an area 1 inch in diameter behind the ear. Pat dry.
Step 2
Wearing gloves, mix together small amount of 1 part My Hairdresser Permanent Hair Colour and 1.5 parts of My Hairdresser Developer.
Step 3
Apply the Colour mixture to test area using an absorbent cotton tip applicator. Leave on for 48 hours without washing, touching or covering.