Principles of Hair Design
What planning step involved in bringing a design to life consists of a stylist learning and growing from past mistakes?
Try and try again.
The nail plate has approximately how many nail cell layers?
Hydroxide relaxers permanently straighten hair by removing one of the bonded sulfur atoms in a disulfide bond. What is the name of the process?
Lanthionization.
What are good examples of a conductor and an insulator? (two answers)
C: tap water; I: wood.
What is true about proportion in hair design?
What is the water content of a healthy nail AND what is the relationship between water content and the nail?
15-25 percent; the lower the water content, the more rigid the nail.
How do chemical hair relaxers work?
They increase the hair's pH balance to an alkaline state, which raises the cuticle layer and allows the relaxer to reach the cortex, where restructuring takes place.
Name a time where the use of micro-current would be the MOST useful?
Reducing redness and inflammation.
Coarse hair sticking out when cut too short is an example of the role ____ plays in the behavior of hair.
texture
How should a cosmetologist determine whether a client has a square facial type?
Look for facial contours that are wide at the temples, narrow at the middle third of the face, and squared off at the jaw.
How would you compare fingernail and toenail growth?
Toenails are thicker than fingernails because the toenail matrix is longer.
A client who is considering a chemical relaxer service has a high consumption level of caffeinated beverages. Why does this matter?
Caffeine increases blood circulation, which can lead to faster irritation caused by the use of chemical relaxers.
Differentiate a direct current from an alternating current.
Direct current flows in one direction, whereas alternating current flows back and forth.
Which basic texturizing technique works well on curly hair because it removes density without adding too many layers?
Free-hand notching.
To locate the parietal ridge, a stylist would place the comb...
...flat on the side of the head.
How long does it take for fingernail and toenail plates to be fully replaced? (two answers)
A hair analysis indicates the client has non-porous hair. Which perm type should the cosmetologist recommend?
Alkaline/cold waves.
What does a watt measure?
How much electric energy is being used in one second.
When using the slicing technique to remove weight and add movement through the lengths of the hair, the shears should never be completely ____.
closed
The regular pulsation or recurrent pattern of movement in a design is known as the ____.
rhythm
The natural nail unit includes which part of the finger?
The tip to the first knuckle.
A client has thick hair that extends below the shoulders. The client wants to have uniform curls and volume. Which technique should the cosmetologist choose to meet the client's request while also minimizing tension/stress on the client's hair?
Croquignole wrap with off-base placements.
Which percentage of natural sunlight is visible, making up the visible spectrum of light?
35%
What is the best way to maintain control of the subsection when cutting with a vertical or diagonal cutting line?
Palm-to-palm.