California State Board Barber Practice Exam 2025 – 400 Free Practice Questions to Pass the Exam

Question: 1 / 400

What is an important step to take before dyeing hair?

Using a clarifying shampoo

Conducting a strand test

Conducting a strand test is a crucial step to take before dyeing hair, as it allows the stylist to assess how the hair will react to the dye. This test involves applying the hair dye to a small section of hair, which helps in determining the final color result and any potential adverse reactions. It provides valuable information about how the hair’s texture, porosity, and previous chemical treatments may influence the dye’s effectiveness and the results.

Moreover, the strand test helps to identify possible allergic reactions or sensitivity to the hair dye, ensuring a safer experience for the client. This preventive measure is essential to avoid unexpected outcomes and is a standard practice in professional hairdressing to maintain the integrity of the hair and the satisfaction of the client.

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Applying conditioner first

Trimming the hair ends

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