CALIFORNIA COSMETOLOGY TEST 2026 QUESTIONS
AND ANSWERS SURE A+
✔✔Desquamation - ✔✔Shedding of the keratinocytes on the stratum corneum.
✔✔What is the average adult cell turnover rate? - ✔✔28 Days
✔✔How many layers of cells does the stratum corneum have? - ✔✔15 to 20 layers of
cells
✔✔What do daughter cells turn into? - ✔✔Daughter cells either remain stem cells or
turn into something else like keratinocytes, skin cells, glands, follicles, tissues, or
organs. When they do not divide anymore, it is called terminal differentiation.
✔✔Melanocytes - ✔✔Cells located in the Stratum Germinativum that produce pigment
granules.
✔✔Melanin - ✔✔A complex protein that determines skin, eye, and hair color. Protects
us from the sun.
✔✔Tyrosinase Inhibitors - ✔✔Products that suppress melanin production and reduce
hyperpigmentation, such as Vitamin C serums.
✔✔Dermis - ✔✔Also known as true skin, supports the layer of connective tissues below
the epidermis.
✔✔Collagen Fibrils - ✔✔Found in the dermis, embedded into the connective collagen
tissue to provide strength and adhesion.
✔✔Collagen - ✔✔A protein substance of complex fibers that give skin its strength and is
necessary for wound healing. Produced by fibroblasts. Makes up 70% of dermis.
, ✔✔Elastin - ✔✔The fibrous protein that forms elastic tissue and gives skin its elasticity.
1/15 compared to the amount of collagen. Loss of elastin in the skin causes wrinkles.
✔✔What is located in the dermis? - ✔✔Blood and lymph vessels (removes waste and
bacterial), capillaries, follicles, sebaceous glands, sweat glands, sensory nerves, and
arrector pili muscles.
✔✔Reticular Layer - ✔✔The denser and deeper layer of the dermis, comprised mainly
of collagen and elastin.
✔✔What determines hair color? - ✔✔The melanin in the hair.
✔✔What are the two types of nerves? - ✔✔Motor and sensory
✔✔Where are the sebaceous glands the largest? - ✔✔On the face and scalp.
✔✔What is the primary function of sebaceous glands? - ✔✔To eliminate liquids and
salts and softens the skin.
✔✔What are the two kinds of sweat glands? - ✔✔Apocrine glands and eccrine glands.
✔✔Apocrine Glands - ✔✔Are coiled structures attached to the hair follicles found under
the arms and genital area. Produce pheromones.
✔✔Eccrine Glands - ✔✔Are found all over the body, primarily on the forehead, palms,
and soles.
✔✔UVA Radiation - ✔✔Aging rays and have longer, penetrating waves.
✔✔UVB Radiation - ✔✔Burning rays and have shorter wavelengths.
✔✔What neutralizes free radicals? - ✔✔Antioxidants neutralize the chain reaction by
donating their electrons to stabilize the free radicals electrons.
✔✔Telangiectasia - ✔✔The dilation of the capillary walls.
✔✔How long will it take to learn all the skin disorders? - ✔✔Knowledge of skin problems
take years of experience and study.
✔✔When do you work on a client if you suspect they have a skin condition? - ✔✔Never
work on any skin condition you do not recognize. When in doubt, stop the service.
✔✔When do you refer clients to a physician? - ✔✔When you do not recognize the skin
abnormality.
AND ANSWERS SURE A+
✔✔Desquamation - ✔✔Shedding of the keratinocytes on the stratum corneum.
✔✔What is the average adult cell turnover rate? - ✔✔28 Days
✔✔How many layers of cells does the stratum corneum have? - ✔✔15 to 20 layers of
cells
✔✔What do daughter cells turn into? - ✔✔Daughter cells either remain stem cells or
turn into something else like keratinocytes, skin cells, glands, follicles, tissues, or
organs. When they do not divide anymore, it is called terminal differentiation.
✔✔Melanocytes - ✔✔Cells located in the Stratum Germinativum that produce pigment
granules.
✔✔Melanin - ✔✔A complex protein that determines skin, eye, and hair color. Protects
us from the sun.
✔✔Tyrosinase Inhibitors - ✔✔Products that suppress melanin production and reduce
hyperpigmentation, such as Vitamin C serums.
✔✔Dermis - ✔✔Also known as true skin, supports the layer of connective tissues below
the epidermis.
✔✔Collagen Fibrils - ✔✔Found in the dermis, embedded into the connective collagen
tissue to provide strength and adhesion.
✔✔Collagen - ✔✔A protein substance of complex fibers that give skin its strength and is
necessary for wound healing. Produced by fibroblasts. Makes up 70% of dermis.
, ✔✔Elastin - ✔✔The fibrous protein that forms elastic tissue and gives skin its elasticity.
1/15 compared to the amount of collagen. Loss of elastin in the skin causes wrinkles.
✔✔What is located in the dermis? - ✔✔Blood and lymph vessels (removes waste and
bacterial), capillaries, follicles, sebaceous glands, sweat glands, sensory nerves, and
arrector pili muscles.
✔✔Reticular Layer - ✔✔The denser and deeper layer of the dermis, comprised mainly
of collagen and elastin.
✔✔What determines hair color? - ✔✔The melanin in the hair.
✔✔What are the two types of nerves? - ✔✔Motor and sensory
✔✔Where are the sebaceous glands the largest? - ✔✔On the face and scalp.
✔✔What is the primary function of sebaceous glands? - ✔✔To eliminate liquids and
salts and softens the skin.
✔✔What are the two kinds of sweat glands? - ✔✔Apocrine glands and eccrine glands.
✔✔Apocrine Glands - ✔✔Are coiled structures attached to the hair follicles found under
the arms and genital area. Produce pheromones.
✔✔Eccrine Glands - ✔✔Are found all over the body, primarily on the forehead, palms,
and soles.
✔✔UVA Radiation - ✔✔Aging rays and have longer, penetrating waves.
✔✔UVB Radiation - ✔✔Burning rays and have shorter wavelengths.
✔✔What neutralizes free radicals? - ✔✔Antioxidants neutralize the chain reaction by
donating their electrons to stabilize the free radicals electrons.
✔✔Telangiectasia - ✔✔The dilation of the capillary walls.
✔✔How long will it take to learn all the skin disorders? - ✔✔Knowledge of skin problems
take years of experience and study.
✔✔When do you work on a client if you suspect they have a skin condition? - ✔✔Never
work on any skin condition you do not recognize. When in doubt, stop the service.
✔✔When do you refer clients to a physician? - ✔✔When you do not recognize the skin
abnormality.
