ch. 15
protein and _____ are two examples of conditioning agents that boost shampoos so they can meet current grooming needs
biotin
what contagious condition is caused by head lice
pediculosis capitis
a method of cutting or layering the hair using razor-sharp shears is
slide cutting
traditional semi permanent hair color only lasts
4-6 weeks
when hair has been sufficiently straightened, the hair is rinsed rapidly and thoroughly with _____ water
warm
the water purification treatment that causes matter to sink to the bottom is called
sedimentation
hair texture refers to the ______ of the hair
thickness or diameter
the hanging level at which a blunt hair cut falls is called
the weight line
a process that lightens and colors hair in a single application is known as
single-processing haircoloring
the action of a guanidine hydroxide, or no lye relaxers causes the hair to
soften and swell
what is the process of heating water until it becomes a vapor, then condensing the vapor so it collects as a liquid
distillation
the study of hair
trichology
cutting with the points of the shears to create texture in the hair ends is known as
notching or point cutting
a product, prepared by combining permanent hair color, hydrogen peroxide, and shampoo is
highlighting shampoo
a hair relaxing treatment should be avoided when an examination shows the presence of
scalp abrasions
a shampoo that is balanced to the pH of skin and hair. or 4.5 to 5.5 is known as
pH-balanced
lowest part of the hair strand
hair bulb
what is the process of removing excess bulk without shortening the length
texturizing
permed, colored, chemically relaxed, and straightened hair will have a _____ degree of porosity
high
scalp and skin are protected from possible burns when using a base hair relaxer by applying
base cream
shampoos formulated with little to alkaline soap base are known as
sulfate free
monilethrix is the technical term for
beaded hair
layers create movement and volume in the hair by
releasing weight
hair color that remains in the hair shaft and cannot be easily shampooed out is called
permanent
the natural pH of hair is between
4.5-5.5