Hair Removal Flashcards
What are hair papillae necessary for?
Hair growth and nourishment of the follicle
What is a benefit of the arrector pili muscle?
when the muscle contracts it helps to disperse the protective lipids from the sebaceous gland to the skin and hair.
What is the difference between lanugo and vellus hair?
Lanugo hair is the soft hair found on a fetus and is shed after birth and is replaced by vellus or terminal hair. Vellus hair grows after birth and is found on parts of our body where there is no terminal hair coverage, including a woman’s face for example
What is the main catalyst for vellus hairs transitioning to terminal hairs?
Hormone changes during puberty are the main catalyst for when vellus hair transitions to terminal hair.
What is the most effective stage for hair removal?
Anagen stage
What makes scalp hair grow longer than eyelashes?
The scalp having a much longer anagen phase than the eyelashes is the main cause of hair on your head growing longer.
What disease, disorder, or syndrome most commonly causes hirsutism?
Polycystic ovarian syndrome (PCOS)
Between hirsutism and hypertrichosis, which is attributed to genetics and not male androgens?
Hypertrichosis
What are the main active ingredients in depilatories?
Alkaline such as sodium hydroxide, potassium hydroxide, thioglycolic acid or calcium thioglycolate.
What is another name for threading?
Banding
What is the biggest benefit of cleaning up after hand applied sugaring?
It is the easiest clean up after hand sugaring because it is water soluble and is discarded after each client.
What is the minimal length of hair that can be removed with sugaring?
1.5 to 3 mm
Which modality of electrolysis uses direct current?
Galvanic electrolysis
What is a main benefit of electrolysis?
It can be performed successfully on all types and colours of hair
What is a downside to electrolysis?
Causes major discomfort and is costly.
Name a safety concern for laser/IPL
Risk of burning and hyperpigmentation.
What are two benefits to speed waxing?
Two benefits of speed waxing are that it is more comfortable for the client as-well as saves you time leading to more revenue.
What are two downsides of waxing?
There is a chance of bruising or lifting the skin of your client and if you are getting waxed, you have to avoid the sun or tanning booths for 24 hours before and after.
List three important infection control methods?
Keeping applicators, strips and gauze in covered containers when not in use, never double dipping in your wax and always washing your hands before and after treatments.
What is the best way to remove wax from eyelashes?
The best way to remove wax from eyelashes is by placing a damp cotton pad under the lashes and remove with petroleum jelly (baby oil) on a cotton swab.
What is the hair root and what does it do?
The root is the part of the hair that lies within the follicle at its base. It anchors the hair to the skin cells
What does the follicular canal produce?
the follicle and hair matrix.
What occurs in the hair matrix?
cell division (mitosis) happens.
What is the study of hair and its diseases called?
Trichology
What is a hair follicle?
Mass of epidermal cells forming a small tube or canal
What is the hair bulb?
A thick club shaped structure that forms the base of the hair follicle
What is the cone shaped elevation of connective tissue that is necessary for hair growth and nourishment that contains the capillaries and nervesat the base of the follicle?
Hair papilla
Define hair shaft
The part of the hair located above the surface of the skin.
What secretes the waxy substance called sebum, which lubricates skin and hair?
The sebaceous gland
Describe the anagen phase
The growth stage during which new hair is produced. New cells form hair and root sheaths while the older part of the hair is pushed upward.
What hair growth stage does mitosis cease and the air has completed its growing phase?
Catagen phase
Describe the telogen phase.
The final/resting stage of hair growth where the hair is at its full size and length and is ready to shed
What’s the difference between hypertrichosis and hirsutism?
Hirsutism is caused by excessive male androgens in the blood whereas hypertrichosis is genetically and ethnically inherited.
What is the difference between epilation and depilation?
Depilation is a process of removing hair at the level of the skin.epilation is the process of removing hair from the bottom of the follicle ie the hair is pulled out of the follicle.
Name 2 forms of epilation.
Threading and sugaring
