Milady Cosmetology Haircolor and Lightening Questions and Answers

Question 1

A client with level 7 hair wants to go to a level 4, but their hair was previously lightened to a level 9. To achieve the target color and avoid a muddy, greenish result, what essential product must be used?

Accepted Answer

A color filler

Answer

When taking pre-lightened hair three or more levels darker, the underlying warm pigments that were removed during the lightening process must be replaced. A color filler is used to re-deposit this missing pigment, creating an even base for the new, darker color and preventing undesirable cool or muddy tones like green.

Question 2

During a lightening service, the client's hair reveals strong, unwanted orange tones. According to the law of color, which color toner should be used to neutralize this brassiness?

Accepted Answer

Blue

Answer

The law of color states that complementary colors, which are opposite each other on the color wheel, neutralize one another. Blue is directly opposite orange, so a blue-based toner will effectively cancel out unwanted orange or brassy tones in the hair.

Question 3

Which of the following hair color types does NOT require a developer and works by coating the hair's cuticle with large pigment molecules that wash out after several shampoos?

Accepted Answer

Semi-permanent

Answer

Semi-permanent hair color is a non-oxidative color, meaning it is not mixed with a developer (hydrogen peroxide). Its large color molecules only coat the outer layer (cuticle) of the hair shaft and do not penetrate the cortex. This is why it gradually fades and washes out over several shampoos.

Question 4

A stylist is working with a client who has highly porous hair due to previous chemical services. How will the hair's porosity likely affect the processing of a new color application?

Accepted Answer

The color will absorb quickly but may also fade faster.

Answer

Highly porous hair has a raised or damaged cuticle layer, which allows it to absorb color very quickly. However, this same condition makes it difficult for the hair to retain pigment, often leading to the color fading more rapidly than it would on hair with normal or low porosity.

Question 5

What is the primary function of hydrogen peroxide when mixed with an oxidative hair color, such as a permanent tint?

Accepted Answer

To act as a catalyst and developer

Answer

Hydrogen peroxide acts as the developer or oxidizing agent. When mixed with an alkalizing agent in the hair color, it breaks down the natural hair pigment (melanin) and develops the new artificial color molecules, allowing them to penetrate the cortex.

Milady Cosmetology Practice Test

Milady Cosmetology Practice Test

Milady Cosmetology Haircolor and Lightening Questions and Answers