Colorado Esthetician Written Practice Exam

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What term describes a lack of pigment in the skin?

Hypopigmentation
Hyperpigmentation
Melanogenesis
Hyperkeratosis

The correct answer is: Hypopigmentation

Hypopigmentation describes a lack of pigment in the skin. This condition results in areas of the skin appearing lighter than the surrounding skin due to a decreased production of melanin. Hyperpigmentation, on the other hand, refers to areas of the skin that are darker than the surrounding skin due to an overproduction of melanin. Melanogenesis is the process of melanin production in the skin, and hyperkeratosis is the thickening of the outer layer of the skin (the stratum corneum).