PSI Barbering Practice Exam

What hair treatment is most likely to cause an allergic reaction?

1. Conditioning treatment

2. Coloring treatment

3. Shampooing

4. Deep conditioning

The correct answer is: Coloring treatment

The likelihood of an allergic reaction is significantly higher with coloring treatments due to the strong chemicals typically involved in the formulation, such as ammonia and various dyes. These substances can provoke allergic responses in some individuals, particularly those with sensitive skin or existing allergies. Coloring treatments often require a patch test prior to application to ensure the client does not have a sensitivity to the ingredients used. This precaution is especially important since reactions may not manifest immediately and could lead to discomfort or harm. In contrast, conditioning treatments, shampooing, and deep conditioning generally involve milder ingredients that are less likely to induce an allergic reaction, making them safer options for most clients.