Patch testing or skin testing is a crucial step before coloring hair and should not be skipped. All professional hair stylists should do it, and you should request it in case your hair colourist decides to omit it.
Why Is It Done?
A patch test is done to check for any skin reactions or allergies any of the hair coloring products might cause to the person. A severe allergic reaction can result in hospitalization or even death; therefore, patch testing is strongly emphasized and is the duty of all salons. Without a patch test, a person should not be allowed to get their hair treatment done. It is for their safety and health reasons that patch testing is compulsory at all salons.
How Long Does It Take?
The patch testing procedure takes less than 5 minutes. It is done by applying a dab of color on any area of your skin, usually the back of your ear or your elbow. Where you get it done doesn’t matter. As long as it is an area that is not directly visible and you don’t need to wash it immediately, it works. You cannot wash the dye out for the next 48 hours.
How Is Patch Testing Done
Simple steps to explain how patch testing is done:
Step 1. Choose a location where to test
Step 2. If you choose to test behind the ear, then remove earrings and tie the hair up; avoid tucking hair behind the ear.
Step 3. Dab a tiny amount onto the back of the ear and wait for it to dry. Once dried, reapply on the exact same location to seal the color
Step 4. The person should now be sent home with the instructions to return after 48 hours of the application. 24 hours is not enough to see a reaction, and the full 48 hours should be completed. In the meantime, the color should not be covered, washed or removed.
Step 5. If everything seems okay and you haven’t noticed any allergies or reactions, then you are okay to get your hair dyed. You may return to the salon and get your hair dyed safely without worrying about any adverse reactions.
What Happens In A Reaction?
The following symptoms might appear if you are experiencing an allergic reaction to the hair dye:
● Difficulty breathing
● Chest tightness
If you notice any of these signs, wash your hair color patch immediately and go to the hospital in an emergency.
The Final Word
Always make sure to get a patch test done if getting your hair coloured professionally or do it yourself at home if you are dying your hair on your own. Consult with a professional hair colorist for more information on patch testing.