Question

Perform a preliminary strand test prior to lightening in order to determine the:

Answer 1

A preliminary strand test is performed prior to lightening hair to determine the resulting hair color, processing time, and hair condition.

Step-by-step explanation:

A preliminary strand test is performed prior to lightening hair in order to determine the

1. resulting hair color: the test helps determine how light or dark the hair will become after the lightening process, as different hair types and colors react differently to bleaching agents;
2. processing time: the test helps determine how long it takes for the hair to lighten to the desired shade, allowing for adjustments in the time of application;
3. hair condition: the test helps evaluate the hair's reaction to the lightening process, including any damage or brittleness that may occur. This information helps in determining the length and strength of the lightening treatment to avoid excessive damage.

In summary, a preliminary strand test in hair lightening is crucial for determining the resulting hair color, processing time, and hair condition.