What should barbers do before using a new product on a client?

Before using a new product on a client, it is essential for barbers to consult the product label and perform a patch test if necessary. This practice is vital for ensuring the client's safety and to avoid any adverse reactions that may arise from the use of unfamiliar substances on their skin or hair.

The product label provides crucial information, including ingredients, potential allergens, and specific usage instructions. By reviewing this information, barbers can make informed decisions about the suitability of the product for individual clients. Additionally, conducting a patch test allows barbers to check for any immediate allergic reactions or sensitivities, ensuring that the client does not experience discomfort or irritation during the procedure. This careful approach demonstrates professionalism and prioritizes client safety and comfort, which are essential principles in barbering and hygiene practices.