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What is a whorl
Whorl causes hair grows in a circular pattern.
What are three specific internal and external factors that can affect hair health
nutrition,hormones, and styling
If you notice your client has seborrheic dermatitis what should you do?
Seek guidance from a instructor or salon manager on how to speak with the client.
when is best to test the elasticity of hair
when hair is wet
Describe melanin
located in the cortex, and forms from cells called melanocytes.
If hair feels brittle and breaks easily you should...
If hair feels brittle and breaks easily you should take precautions to accommodate its low elasticity.
What role do androgens and thyroid hormones play in the loss of thinning of hair
affect the dermal papilla and productions of keratinocytes, which leads to hair follicle miniaturization and affects hair growth, Insufficient thyroid hormones and metabolic disorders may also cause thinning
How are dandruff and dry scalp similar? What is the difference.
Similarities itching and white flakes. Differences dandruff- stems from excess oil and yeast (yellow flakes) dry scalp - is caused by lack of moisture (white flakes)
what is hair elasticity an indicator of
hair elasticity is an indicator of the hairs ability to stretch and return to its original length without breaking.
List three conditions that may prevent you from working on a client
cuts,abrasions, and contagious scalp conditions.
what are the only scientifically proven treatments to help stop hair loss and possible regrow hair.
. Minoxidil and finasteride are the only scientifically proven treatments to help stop hair loss and possible regrow hair.
fungus that causes pituriasis (dandruff) explain how it causes dandruff and list the three other factors that can affect dandruff.
Dandruff is caused by a fungus called malassezia. Is characterized by the excessive production and shedding of skin cells.The three other factors that can affect dandruff are stress, pollution, and seasonal changes.
Is dandruff contagious.
Dandruff is not contagious.
how many and what areas should be checked when testing for hair elasticity
You should check four areas when testing for hair elasticity, front hairline, temple, crown, and nape.
How does the beauty industry distinguish between the terms hair color and haircolor.
Hair color refers to the hairs natural color, but haircolor refers to artificial hair coloring services and products.
What will help you as a cosmetologist make better recommendations for your clients hair loss treatments
Identifying hair growth cycle and the differences between common and uncommon hair loss helps better recommend client hair loss treatments.
What type of agent is contained in antidandruff shampoos? How often should they be used to control dandruff?
Antidandruff shampoos contain the antifungal agents pyrithione zinc, selenium sulfide, or ketoconazole to control dandruff by suppressing the growth of malassezia. it should be use every day
what solution does a hair with low elasticity require to minimize further damage
hair with low elasticity requires a solution with a lower ph to minimize further damage and may not maintain a strong curl pattern when chemical services are performed.
what percent will dry hair with average elasticity stretch up to
20 percent for dry 50 for wet
Six items that a cosmetologist will examine during hair and scalp analysis
texture density,porosity,elasticity,growth patterns, and dryness/oiliness of hair and scalp.
Three examples of styling techniques, processes, or tools that might hinder hair growth
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Two main types of dandruff and explain
1. Pityriasis capitis simplex is the technical term for classic dandruff characterized by scalp irritation, large flakes, and an itchy scalp. The scales may attach to the scalp in masses, scatter loosely in the hair, or fall to the shoulders. 2. Pityriasis steatoides is a more severe case of dandruff characterized by an accumulation of greasy or waxy scales, mixed with sebum, that stick to the scalp in crusts. Infants with this condition are referred to as having cradle cap.
Is the strength of the side bonds in the cortex directly related to hairs elasticity
The strength of the side bonds in the cortex is NOT directly related to hairs elasticity
What steps should be taken to analyze the porosity of a clients hair.
Porosity is determined by the cuticle layers condition and degree the “scales” of the cuticles are raised.Hair with low porosity has a very healthy cuticle where the scales lie flat,hair with average porosity may have raised cuticle areas but the hair is still healthy. Hair with high porosity if often the result of previous overprocessing. Overly porous hair has a raised cuticle and is typically damaged,dry,fragile, and brittle.
how do you determine a clients density
consider how much scalp is visible, if you can see the scalp the density is thin, some visible scalp is medium and no visible scalp is thick.