What should barbers do to ensure the safety of clients when using dyes or color products?

To ensure the safety of clients when using dyes or color products, performing a patch test is essential. A patch test involves applying a small amount of the dye or color product on a discreet area of the client's skin, usually behind the ear or on the inside of the elbow, and waiting for a specified period to check for any adverse reactions like redness, itching, or swelling. This step is crucial because it helps to identify potential allergies or sensitivities a client may have to the ingredients in the dye.

By carrying out this precautionary measure, barbers protect their clients from allergic reactions that could lead to discomfort or more severe health issues. Understanding and applying safe practices not only builds trust with clients but also ensures a professional standard of care in the barbering profession.