- Tie your hair back and prepare the skin behind one of your ears by ensuring it's wiped clean
- Protect your work surface using a paper towel then open your patch test kit
- Locate the two small pots containing hair tint and developer. Unscrew the lids carefully
- Pour one of the solutions into the other pot. Use the cotton bud to mix both solutions together
- Take the other cotton bud and cover the tip in the solution
- Apply the solution using the cotton bud to the skin behind one of your ears
- Leave the solution on your skin for 48 hours.
- Check for swelling, redness, irritation or any reaction.
- You are safe to proceed if none of the above have occurred
- Please dispose of the patch test after use. The solutions should not be re-used.