Cosmetology Test Haircolor and Lightening 3

Question 1

A client with previously relaxed hair wants a haircolor service. What precaution should the cosmetologist take?

Accepted Answer

Perform a strand test and use a lower-volume developer

Answer

Chemically relaxed hair is already compromised, so a strand test and lower-volume developer help prevent breakage and over-processing.

Question 2

What does 'contributing pigment' refer to in haircoloring?

Accepted Answer

The underlying warm tones revealed as hair is lightened

Answer

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.

Question 3

Which mixing ratio is standard for most permanent haircolor with 20-volume cream developer?

Accepted Answer

1:1 (color to developer)

Answer

Most permanent haircolor manufacturers specify a 1:1 ratio of color to developer, though always check the manufacturer's instructions.

Question 4

What is the purpose of a filler in haircoloring?

Accepted Answer

To pre-pigment porous or previously lightened hair before coloring

Answer

A filler deposits missing warm tones into overly porous or lightened hair so that the final color formula deposits evenly and lasts longer.

Question 5

A client has a green cast in her blonde hair from swimming in a chlorinated pool. What is the likely cause?

Accepted Answer

Copper mineral deposits oxidize and bind to the hair shaft

Answer

Copper oxidizes to form green compounds (like copper chlorophyll) that bind to the porous hair shaft, causing the characteristic green tint.

Cosmetology Test Practice Test

Cosmetology Test Practice Test

Cosmetology Test Haircolor and Lightening 3