When testing a curl during a perm, how should you unwind the rod and what indicates the curl is complete?

When testing a curl during a perm, how should you unwind the rod and what indicates the curl is complete?

• A. Unwind 1 1/2 to 2 turns; hair should unfold naturally, you should see a definite S shape, and the wave dimension should match the diameter of the perm rod.
• B. Unwind 2 to 3 turns; hair remains tight and no S shape
• C. Unwind 0.5 turn; hair forms a straight line
• D. Do not unwind; keep rod until finish

Answer: (A)

Testing a curl during a perm means releasing the rod enough to see how the hair relaxes and forms the curl around the rod. The best approach is to unwind about one and a half to two turns. When you do this, the hair should unwind naturally, showing a definite S shape, and the wave’s width should roughly match the diameter of the perm rod. This indicates the curl has formed properly around the rod and the length of the wave is appropriate for that rod size. If you unwind too far, like two to three turns, the hair may stay tight and lack the S shape, signaling that the curl isn’t developing as it should. If you unwind only a half turn, you’ll often see a straight line, which means the curl hasn’t formed yet. Not unwinding at all prevents you from assessing the curl's formation.

Testing a curl during a perm means releasing the rod enough to see how the hair relaxes and forms the curl around the rod. The best approach is to unwind about one and a half to two turns. When you do this, the hair should unwind naturally, showing a definite S shape, and the wave’s width should roughly match the diameter of the perm rod. This indicates the curl has formed properly around the rod and the length of the wave is appropriate for that rod size.

If you unwind too far, like two to three turns, the hair may stay tight and lack the S shape, signaling that the curl isn’t developing as it should. If you unwind only a half turn, you’ll often see a straight line, which means the curl hasn’t formed yet. Not unwinding at all prevents you from assessing the curl's formation.