Cosmetology Skin Care and Facials 3

Question 1

Which type of current used in esthetic treatments produces a chemical reaction to soften and emulsify sebum in follicles?

Accepted Answer

Galvanic current

Answer

Galvanic current uses direct current (DC) to drive active ingredients into the skin (iontophoresis) or to soften and emulsify hardened sebum through desincrustation.

Question 2

What is hyperpigmentation caused by?

Accepted Answer

Overproduction of melanin in certain areas

Answer

Hyperpigmentation occurs when melanocytes in certain areas overproduce melanin, resulting in dark patches or spots such as melasma, sun spots, or post-inflammatory marks.

Question 3

The Wood's lamp (black light) used in skin analysis reveals what about the skin?

Accepted Answer

Bacteria, dead skin cells, and hydration levels via fluorescence

Answer

Under a Wood's lamp, different skin conditions fluoresce distinct colors — dead cells appear white, oily areas orange, bacteria purple, and hydrated skin blue-white.

Question 4

Sebaceous glands produce sebum, which primarily functions to:

Accepted Answer

Lubricate and waterproof the skin and hair

Answer

Sebum is an oily substance secreted by sebaceous glands that lubricates the skin and hair, helping to maintain the skin's moisture barrier and protecting against dryness.

Question 5

What does SPF (Sun Protection Factor) measure?

Accepted Answer

How long UV-B protection lasts on the skin

Answer

SPF measures protection against UV-B rays, indicating how much longer you can stay in the sun before burning compared to unprotected skin.

Cosmetology Practice Test

Cosmetology Practice Test

Cosmetology Skin Care and Facials 3