Chemical ServicesPregunta 86 de 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
Explicación
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.
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