Haircolor and Lightening Flashcards
7 cards from real Cosmetology Test practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Haircolor and Lightening flashcards as text
A client with previously relaxed hair wants a haircolor service. What precaution should the cosmetologist take?
Answer: Perform a strand test and use a lower-volume developer
Chemically relaxed hair is already compromised, so a strand test and lower-volume developer help prevent breakage and over-processing.
What does 'contributing pigment' refer to in haircoloring?
Answer: The underlying warm tones revealed as hair is lightened
Contributing pigment (also called undertone) refers to the warm residual tones—red, orange, yellow—that are exposed as the hair's natural melanin is lightened.
Which mixing ratio is standard for most permanent haircolor with 20-volume cream developer?
Answer: 1:1 (color to developer)
Most permanent haircolor manufacturers specify a 1:1 ratio of color to developer, though always check the manufacturer's instructions.
What is the purpose of a filler in haircoloring?
Answer: To pre-pigment porous or previously lightened hair before coloring
A filler deposits missing warm tones into overly porous or lightened hair so that the final color formula deposits evenly and lasts longer.
A client has a green cast in her blonde hair from swimming in a chlorinated pool. What is the likely cause?
Answer: Copper mineral deposits oxidize and bind to the hair shaft
Copper oxidizes to form green compounds (like copper chlorophyll) that bind to the porous hair shaft, causing the characteristic green tint.
Which product should be used to correct brassiness in lightened hair without lifting the hair further?
Answer: Purple or blue toning shampoo
Purple or blue toning shampoos deposit violet or blue pigments that neutralize yellow and orange brassy tones through color wheel opposition.
During a double-process blonde service, what is the correct order of steps?
Answer: Bleach, shampoo and condition, then tone
In a double-process service, bleach lifts the hair first; after shampooing and conditioning to remove bleach residue, a toner is applied to achieve the desired blonde shade.