What part of the skin contains melanocytes, the cells responsible for pigment?
What is the stratum basale (or basal layer)
What term describes the measure of how much electrical energy is being used per second?
What is a watt?
What is the term for an item that cannot be properly disinfected and must be thrown away after one use?
What is a single-use (disposable) item
What skin type benefits most from ozone-steam treatments?
What is oily or acne-prone skin
Substances with a pH below 7 are considered what?
What is acidic
What cranial nerve controls facial expressions?
What is the seventh cranial nerve (facial nerve)
What is the name of the electrode that is held by the client during galvanic treatment?
What is the inactive electrode
ow long must implements generally be fully immersed in disinfectant according to manufacturer guidelines?
What is 10 minutes (or as directed by the EPA label)
What effect does negative galvanic current (anaphoresis) have on the skin?
It opens pores and softens sebum.
What does the term "miscible" mean in chemistry?
Liquids that can be mixed together to form a stable solution.
What type of gland produces sweat?
What is a sudoriferous gland
In microcurrent therapy, what is the primary benefit to facial muscles?
Toning and re-education of facial muscles.
What type of microorganisms are pus-forming and can cause strep throat or blood poisoning?
What are streptococci?
Which facial device provides a light suction to stimulate lymphatic drainage and increase circulation?
What is a vacuum suction machine
What is the difference between a solution and a suspension?
A solution is a stable mixture; a suspension separates over time.
Which layer of the skin is primarily responsible for sensation, heat regulation, and excretion?
What is the dermis?
What type of current does Tesla high-frequency use?
What is alternating current (AC)
What is the difference between pathogenic and nonpathogenic bacteria?
Pathogenic bacteria cause disease; nonpathogenic are harmless or helpful.
What precaution should be taken when using microdermabrasion on clients with sensitive skin?
Use the lowest setting and avoid over-exfoliation.
Which AHA is derived from sugar cane and is often used in chemical exfoliation?
What is glycolic acid
What is the function of the arrector pili muscle?
To contract and cause goosebumps when cold or frightened.
Which safety device automatically shuts off an electric current when it detects overload?
What is a circuit breaker?
What does an MSDS (now SDS) sheet provide information about?
Chemical composition, hazards, handling, storage, and emergency measures.
What facial device breaks down water molecules to create a cold mist used for deep product penetration?
What is a spray diffuser or atomizer?
What is the term for the ingredients that cause a product to function, such as exfoliating or hydrating?
What are performance ingredients