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Why is it important to evaluate your client's hair?
allows you to support their individual hair needs.
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The degree of coarseness or fineness in the hair fiber is?
Hair Texture.
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What are the three textures of hair?
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The number of active hair follicles per square inch on the scalp is?
Hair Density
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What will the client's hair density determine when performing services?
sub-section/parting sizes.
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The ability of hair to absorb moisture, liquids and chemicals is?
Hair Porosity.
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Hair that is able to absorb the least amount of moisture, and has a closed cuticle is?
Poor Porosity
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Hair with the normal ability to absorb moisture is?
Good Porosity
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Combination of two or more different porosities is?
Uneven Porosity
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What can cause extreme porosity?
- Chemical Services
- Environment
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The ability of hair to stretch and return to it's original shape without breaking is?
Hair Elasticity
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How much can dry hair be stretched, how much can wet hair be stretched?
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How many layers of cuticle scales are on a hair strand?
7-12 layers
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Another term for broken hair?
Abraded Hair
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The most common type of cuticle damage?
Abraded Cuticle
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What can cause abrasion?
Friction on the hair strand.
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Is hair more fragile when wet or dry?
Wet
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What are the techincal names for split ends?
Trichoptilosis; Fragilitis Crinium; brittle hair.
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What are ways to treat split ends?
protein conditions temporarily seal; cut off split ends.
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Are repair treatments for split ends permanent or temporary?
Temporary
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Matting: a mass of hair strands that cannot be separated is called what?
Pilic Polonica
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Knotted Hair: lumps or swelling along the hair shaft is called what?
Trichorrhexis Nodosa
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Physical Knotting of hair: caused by friction of the scalp is called what?
Trichonodosis
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The grayness or whiteness of the hair caused by aging, congenital, extended illness and nervous strain is called what?
Canities
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Alternating bands of gray and dark pigments on the same hair strand is called?
Ringed Hair
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Abnormal coverage of hair on areas of the body where normally babyfine hair appears is called?
Hypertrichosis
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Beads or nodules formed on the hair shaft is called?
Monilethrix
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What causes mechanical damage to the hair?
incorrect use of styling tools.
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What causes a melted cortex?
- a dryer too close to the hair
- curling iron left on too long
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Psoriasis: (disorder) thick crusty patches of red irritated scalp, refer to a physician. services allowed.
Psoriasis
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Dandruff, excessive scalp flaking, (disorder), no treatment, services allowed.
Pityriasis
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Dry dandruff, (disorder), dry flakes attached to the scalp or on the hair, treat with frequent medicated anti-dandruff shampoo. services allowed.
Pityriasis Capitis Simplex
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Greasy/Waxy Dandruff, (disorder), oil flakes combine with sebum which stick to the scalp in clusters, yellowish in color. services allowed.
Pityriasis Steatoides
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Ringworm, (disease). red circular patch of small blisters causes by a vegetable parasite. refer to physician. refuse service.
Tinea
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Ringworm of the scalp, (disease). enlarged open hair follicles that are surrounded by clusters of red spots, hair breakage likely, possible visible black spots. refer to physician, refuse service.
Tinea Capitis
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Honeycomb ringworm, (disease), dry, yellow encrusted areas on the scalp, may have peculiar odor, shiny pink or white scars may result. refer to physician, refuse service.
Tinea Favosa/Favus
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Itch mite, (disorder), red and watery vesicles or pus-filled areas, caused by an animal parasite burrowing under the skin. refer to physician. refuse service.
Scabies
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Head lice, (disorder), infestation of head lice on the scalp, causes itching and eventually an infection. refer to physician. refuse service.
Pediculosis Capitis
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The leading cause of dandruff, is a naturally occuring microscopic fungus is what?
Malassezia
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What is alopecia?
Excessive hair loss.
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Babyfine hair that covers the body and is shortly shed after birth is called?
Lanugo
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The hair that replaces lanugo; short fine, non pigmented hair, (more abundant on women), is called?
Vellus Hair
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Long, thick, pigmented hair that replaces vellus hair on certain areas of the body during puberty (scalp and eyebrow hair) is called?
Terminal Hair
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On average how many hairs are lost each day?
40-100 strands
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Most common form of alopecia, permanent hair loss, caused by heredity, horomones and age is called?
Androgenetic Alopecia
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Hair loss after childbirth that's caused from hair staying in the anagen phase longer during pregnancy is called?
Postpartum Alopecia
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An autoimmune disease that results in sudden loss of hair in a few confined areas on the body, often temporary, without inflammation is called?
Alopecia Areata
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Premature shedding of hair while in the resting (telogen) stage is called?
Telogen Effluvium
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Hair loss due to repetitive traction on the hair by pulling and twisting is called?
Traction/Traumatic Alopecia
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What referring to hair loss, what do pattern and density refer to?
- Pattern: refers to the shape and location of the hair loss.
- Density: refers to how much hair is covering the scalp are with the hair loss.
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What is the average number of hair per square inch on the head?
1,000 strands per square inch
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What is the average number of hairs on the head for each hair color type?
- RedHeads: ~90,000
- Brunettes: ~110,000
- Black: ~108,000
- Blonde: ~140,000
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If a product is going to be marketed as being able to regrow hair or prevent hair loss, who must approve the product?
FDA
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