Science General · Biology
Cosmetology and Beauty Therapy
1,630 Questions
Cosmetology and Beauty Therapy encompasses skincare, haircare, and aesthetic treatments. This hub provides practice questions related to cosmetic chemistry, skin anatomy, and specialized treatments like hair removal. It is a valuable resource for students preparing for vocational and aesthetician certification exams.
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Cosmetology and Beauty Therapy Questions
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increased blood circulation
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reduction of inflammation
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Enhancement of lymphatic circulation
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stimulation of hair follicles
D
Correct answer
Explanation
LED rejuvenation is used for skin health, such as collagen production and inflammation reduction. It is not designed to stimulate hair follicles, which is a different application.
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Applying clear water-soluble gel
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using a device with a chilled crystal tip
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using a device with an air cooling mechanism
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Submerging the treatment area in water during the treatment
D
Correct answer
Explanation
Submerging the treatment area in water during an IPL treatment is dangerous and not a recognized cooling method. Proper methods include gels, chilled tips, or air cooling.
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when treating superficial age spots
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when treating pigmented lesions
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when treating smaller vessels
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when removing finer hair
B
Correct answer
Explanation
Double and triple pulses are used in IPL to treat pigmented lesions, as they allow for effective energy delivery while protecting the surrounding tissue.
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Tattoo Removal
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collagen stimulation
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wrinkle reduction
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fractional resurfacing
A
Correct answer
Explanation
Q-switched lasers, including the alexandrite, are specifically designed to deliver high-energy pulses in very short durations, making them ideal for shattering tattoo ink particles.
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Ruby Q- switched
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erbium glass
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Pulsed dye
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frequency-doubled Nd:YAG
C
Correct answer
Explanation
Pulsed dye lasers are the standard choice for treating vascular lesions because their wavelength is well-absorbed by hemoglobin.
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Treating vascular lesions
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tattoo removal
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Hair removal
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treating endovenous fiber
C
Correct answer
Explanation
The 800 nm diode laser is widely used for hair removal because it effectively targets melanin in the hair follicle while minimizing damage to the surrounding skin.
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clients age
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clients gender
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whether the client has had any other type of laser treatment
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clients tendency for wound healing
D
Correct answer
Explanation
When performing photochemical laser therapy, the client's ability to heal is the most critical factor to prevent complications like scarring or prolonged redness.
B
Correct answer
Explanation
Fraxel lasers use fractional technology to treat a portion of the skin surface, typically around 20 percent, to balance efficacy with downtime.
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improving sun-damaged skin
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Hair removal
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reducing the appearance of acne scars
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improving moderate or mild rhytids
B
Correct answer
Explanation
CO2 and Er:YAG lasers are ablative lasers used for resurfacing and scar reduction. They are not used for hair removal, which requires different wavelengths and targets.
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ear injuries
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skin burns
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singed hairs
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eye injuries
D
Correct answer
Explanation
Eye injuries are the most significant and commonly reported safety hazard in laser environments due to the potential for retinal damage from direct or reflected beams.
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scatter
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ablation
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modulation
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fluence
B
Correct answer
Explanation
Ablation is the process of vaporizing or removing tissue, such as layers of the epidermis or dermis, using laser energy.
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Hair removal
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reducing collagen levels
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Treating pigmented lesions
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Stimulating melanin production in hypopigmented skin
C
Correct answer
Explanation
Q-switched lasers are specifically designed to deliver very short, high-intensity pulses, which are ideal for shattering pigment particles in pigmented lesions or for tattoo removal.
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Colored cells or target in epidermis or dermis
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Plume or smoke that is generated from an ablative device
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The splitting up or destruction of cells
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colored cells that areto be avoided with lasers
A
Correct answer
Explanation
A chromophore is a specific part of a molecule or tissue that absorbs light at a particular wavelength. These are the targets for laser treatments, such as melanin or hemoglobin.
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The ability to cut, vaporize, or remove using a laser
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No disruption of the epidermis
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The erosion of the epidermis
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To stimulate or change cellular function
A
Correct answer
Explanation
Ablative lasers work by removing or vaporizing tissue, which typically involves the destruction of the epidermis or dermis. Non-ablative lasers, by contrast, do not remove the surface layer.
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The whole surface of the lichen thallus helps absorption of water both in liquid and vapour form.
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In U.S.S.R. and Sweden, lichens were used in alcohol production because they contain the carbohydrate known as lichenin.
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Parmelia species are used as curry powder in India.
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All of the above.
D
Correct answer
Explanation
Parmelia is a genus of the family Parmeliaceae is a medium to large foliose lichens. These grow in a wide range of shapes and forms and is usually determined by the organization of the fungal filaments. The vegetative body is called as the thallus which helps in absorbing water. The route from lichen to alcohol was first via a treatment with acid to transform lichenin (a carbohydrate) into glucose and during the Second World War, there was industrial production of sugar from lichens in Russia. The incentive to use lichens came from the scarcity of beet sugar and the need to use grain or potato starch for military alcohol production.
Thus, the correct answer is option D.