What length of hair was Charles Nessler's heat permanent waving machine suitable for? - (correct
Answer) - long
In 1926, the croquignogle method of wrapping hair from ends to scalp was created. What is another
name for this wrapping method? - (correct Answer) - Overlap
What was the active ingredient used in the first cold wave? - (correct Answer) - thioglycolate acid
Which phase of perming is the most important? - (correct Answer) - Physical and chemical phase are
equally important
During a perm service, what determines the size and shape of the new wave or curl pattern? - (correct
Answer) - Perm rod size
What are the two basic wrapping techniques? - (correct Answer) - spiral and overlap
What length of hair is used for a spiral technique? - (correct Answer) - Medium to Long
Partial perms are designed to - (correct Answer) - Position new texture only where it is desired
What term is used to refer the way perm tools are arranged around the clients head while wrapping? -
(correct Answer) - Perm pattern
What structure must be permanently broken to change the hair from straight to wavy or curly? - (correct
Answer) - Disulfide bonds
Alkaline perms carry a pH of: - (correct Answer) - 8.0-9.5
Which type of perm is recommended for very damaged hair? - (correct Answer) - Acid
Which of the following perms would process faster? - (correct Answer) - Alkaline
Which of the following ingredients is not one of the main ingredients in found in most neutralizers? -
(correct Answer) - Potassium
the pH of Perm Neutralizer will range from - (correct Answer) - 2.5-7
Which perm tool determines the size and shape of the new curl texture? - (correct Answer) - Perm rod
Perms that cause minimal swelling and must be wrapped with firm, even tension are - (correct Answer) -
Acid
The hair characteristics to assess in a pre-perm analysis are porosity, elasticity, texture and: - (correct
Answer) - density
To equalize porosity of highly porous hair, it may be necessary to use which of these products? - (correct