Chemical ServicesCâu 86 / 100
A strand test is used during a chemical service to:
a.Check how the hair will react and the expected result before treating the whole head
b.Measure scalp temperature
c.Test the disinfectant
d.Sharpen the razor
Giải thích
A strand test treats a small section first to preview color result, processing time, or perm curl before committing to the full head. It helps prevent over-processing and unexpected outcomes.
Luyện miễn phí toàn bộ 100 câu hỏi — không cần đăng ký.
Câu hỏi liên quan cùng chủ đề
- A patch (predisposition) test is performed before certain color services to:
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