Hair Analysis
A Clients hair absorbs water almost immediately and dries quickly, which hair characteristic is most likely present?
High Porosity
A student uses large rods but expects tight curls. What assumption is correct?
Large rods generally create larger, looser curls
A relaxer is applied only to new growth. What type of service is being performed?
Relaxer retouch
Which bonds are broken during a permanent wave reformed during neutralization?
Disulfide bonds
What is the primary purpose of end papers?
To control the ends of the hair and prevent fishhooks
A client previously received a relaxer but doesn't know whether it was a thio or hydroxide relaxer, why is identifying the relaxer important?
Hair treated with a hydroxide relaxers generally not compatible with thio chemical texture services
During the processing stage of a permanent wave, which chemical action is taking place?
Reduction
A student accidentally applies relaxer onto previously relaxed hair. What is the primary concern?
Over processing & Breakage
What chemical action occurs during neutralization?
Oxidation
Hair ends sticking out from a rod after wrappingare known as what?
Fishhooks
During a strand analysis, the hair stretches significantly but fails to return to it's original length what characteristic is compromised?
Elasticity
A student removes rods before applying neutralizer because the curl appears complete. What critical step has been skipped?
Reforming the disulfide bonds through neutralization
A client experiences scalp burning during a relaxer service. What should be done first?
Rinse immediately according to manufacturer instructions
What process occurs when hydroxide relaxers permanently convert some disulfide bonds into lanthionine bond?
Lantnionization
A student performs a chemical texture service without a consultation. What important information may have been missed?
Previous chemical services, hair condition, scalp condition, contraindications, or client expectations
A client has coarse, low-porosity hair. Compared to average hair, would you generally expect faster or slower processing?
Slower Processing
Two clients receive the same rod size and processing time.One develops a tighter curl pattern.Name one hair characteristic that could explain the difference
Texture, Porosity, Density, or Elasticity
A client previously received a hydroxide relaxer and now requests a thio permanent wave. What should the barber know?
Hydroxide-relaxed hair is generally not compatible with thio services
A client asks if lantionization can be reversed later,What is the correct response?
No lanthionization is permanent
A clients hair appears healthy during consultation. During a preliminary test curl, the strand breaks easily. Which result should guide your decision?
The preliminary test curl.
A clients hair appears healthy during the consultation, but a strand test revels poor elasticity and excessive stretching. Which should guide your service decision?
The Stand Test Results
A test curl indicates the hair has not processed sufficiently, what is the safest next step?
Continue processing and recheck according to manufacturer instructions
A student continues manipulating and repeatedly smoothing a section that has already processed sufficiently. What chemical service error may occur?
Overprocessing
A student says, "Permanent waves are create their lasting change by altering hydrogen bonds." Why is this statement incorrect?
Hydrogen bonds are temporary, The lasting change comes from breaking and reforming disulfide bonds
A barber follows a standard processing time without considering texture, porosity, elasticity, or test results. What professional principle is being ignored?
Chemical texture services must be customized based on hair analysis and processing results.