What advice can you give to avoid allergic reactions?

Good Dye Young hair color is PPD free to minimize the risk of adverse reactions, but it’s still recommended you perform a patch test by using the following method:

• Choose a small area of skin roughly the size of a penny for the test, preferably somewhere discreet such as behind the ear or in the inner fold of your elbow.
• Wash the test area with water and soap and dab dry with a clean towel.
• Place a thin coating of your chosen GDY dye upon the test area.
• Allow the dye to dry and leave it undisturbed and uncovered for 24 hours.
• Examine the test area for any signs of irritation. If there is a negative reaction, then the product should not be used by that person under any circumstances.