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102.15 Hair Care

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Created by: kaeleikirk

Term	Definition
texture	degree of coarseness of fineness in the hair fiber
fine	feel of silk
medium	feel of cotton
coarse	feel of wool
visual examination	provides clues on the condition of the client's hair ask client questions to best determine which products will work best
density	number of active hair follicles per square inch on the scalp
porosity	ability of the hair to absorb moisture, liquids, or chemicals
average porosity	cuticle is slightly raised normal ability to absorb moisture hair in good condition; suitable for most services
resistant porosity	cuticle is flat able to absorb the least amount of moisture also called "poor porosity"
extreme porosity	cuticle is raised too porous hair damaged from chemical services treatment required prior to chemical services
uneven porosity	porosities are mixed combination of two or more porosities
elasticity	ability of hair to stretch and return to its original shape without breaking
normal dry hair stretches	20%
wet hair stretches	40-50%
humid regions	curl retention is a challenge
dry regions	tends to be flyaway
number of cuticle scale layers	7 to 12
scales should lie flat along the	cortex
acid mantle lubricates the outermost layer of the cuticle and reduces	friction
combing and brushing damages the	cuticle
broken hair	abraded hair, abraded cuticle cuticle becomes cracked and frayed
split ends	brittle hair, fragilitis crinium, trichoptilosis small cracks in cuticle deepen into the cortex
nodules	trichorrhexis nodosa, knotted hair lumps or swelling along hair shaft
canities	grayness grayness or whiteness of hair; congenital or acquired
monilethrix	beaded hair breaks in the hair between beads or nodes
matting	plica polonica mass of hair strands that cannot be separated
ringed hair	pili annulati alternating bands of gray and dark hair
hypertrichosis	ambras syndrome abnormal coverage of hair on areas of the body
hirsutism	Superfluous hair excessive amounts of hair in women
damage	results from incorrect use of salon tools
scales	disorder psoriasis thick, crusty patches of red irritated scalp refer to physician
dandruff	disorder pityriasis chronic; excessive flaking, itchiness, tightness, and irritation shampoo with anti-dandruff shampoo
dry dandruff	disorder pityriasis capitis simplex dry flakes which can appear translucent
greasy or waxy dandruff	disorder pityriases steatoides oily flakes combined with sebum; stick to scalp in clusters; yellowish
ringworm	disease tinea red, circular patch of blisters; caused by vegetable parasite refer to physician
ringworm of the scalp	tinea capitis englarged open hair folicles surrounded by clusters of red spots refer to physician
honeycomb ringworm	disease tinea favosa or favus dry, yellow, encrusted area; may have odor; shiny scars may result
itch mite	disorder scabies red, watery vesicles; animal parasite burrowing under the skin
head lice	disorder pediculosis capitis infestation of head lice causing itching and eventual infection
lanugo hair	fine, silky hair covering body before birth
vellus hair	short, fine, non-pigmented hair that replaces lanugo hair
terminal hair	long, thick pigmented hair such as scalp and eyebrow hair
average daily hair loss	40 to 100 strands
alopecia	excessive hair loss caused by fungal or bacterial infection or inflammatory disease of scalp occurs in both men and women
androgenetic alopecia	progressive shrinking, or miniaturization, of certain scalp follicles most common form of alopecia male pattern baldness or thinning of hair in females
androgenetic alopecia in men	known as male pattern baldness familiar horseshoe shaped fringe loss pattern evaluated common for men to go baldf
androgenetic alopecia in women	generalized thinning over the crown scattered hair thinning density evaluated rare for a woman to go bald
pattern	refers to shape and location of area
density	refers to how much hair is covering the scalp in the area of loss
postpartum alopecia	temporary hair loss at conclusion or pregnancy
alopecia areata	autoimmune disease; sudden loss of hair in round or irregular patches
alopecia areata totalis	total loss of hair on the scalp
alopecia areata universalis	loss of hair over entire scalp and body
alopecia prematura	baldness that occurs early in life
telogen effluvium	premature shedding of hair during the resting stage
traction or traumatic alopecia	hair loss from excessive pulling or twisting