Cosmetology

Which type of electrical current is used for facial and scalp treatments due to its ability to stimulate muscle contractions?

• Direct Current (DC)

• Alternating Current (AC)

• Sinusoidal Current

• Galvanic Current

Why is it important to use only equipment that has been certified by recognized testing laboratories in cosmetology salons?

• To ensure the equipment uses less electricity

• To guarantee the equipment can be used in wet conditions without risk

• To ensure the equipment meets safety standards and is safe to use

• To confirm the equipment is covered by insurance

What is the purpose of using a Tesla high-frequency machine in cosmetology?

• To create a magnetic field around the hair follicle

• To sterilize skin and tools

• To improve skin hydration

• To reduce the appearance of cellulite

What is the effect of ultraviolet (UV) light usage in cosmetology?

• Promotes faster hair growth

• Sterilizes equipment and surfaces

• Increases skin elasticity

• Reduces skin hydration

The type of visible light that should be used on dry skin

• UV

• Infrared

• Blue Light

• Red Light

What is the primary function of keratin in hair and nails?

• To provide color

• To provide strength and protection

• To aid in growth

• To moisturize

Which vitamin is essential for collagen production in the skin?

• Vitamin A

• Vitamin C

• Vitamin D

• Vitamin E

What is the role of melanin in the skin?

• To protect against UV radiation

• To provide moisture

• To regulate temperature

• To aid in exfoliation

Which layer of the skin contains the most collagen?

• Epidermis

• Dermis

• Subcutaneous

• Stratum corneum

What is the effect of alpha hydroxy acids (AHAs) in skincare?

• Hydration

• Exfoliation

• Sun protection

• Pigmentation