{"id":49,"date":"2021-01-26T17:19:49","date_gmt":"2021-01-26T22:19:49","guid":{"rendered":"https:\/\/opentextbc.ca\/haircolourforhairstylistslevel2\/chapter\/consultation\/"},"modified":"2022-10-21T11:39:16","modified_gmt":"2022-10-21T15:39:16","slug":"consultation","status":"publish","type":"chapter","link":"https:\/\/opentextbc.ca\/haircolourforhairstylistslevel2\/chapter\/consultation\/","title":{"raw":"2.2 Hair and Scalp Assessment","rendered":"2.2 Hair and Scalp Assessment"},"content":{"raw":"A thorough client consultation is the basis for a successful hair colouring service. It is your responsibility to assess the characteristics of the hair and scalp and to ask specific questions that will determine your choice of colouring product, technique, and placement.\r\n\r\nA new client is not the only client who should be receiving a thorough colour consultation. Hair and scalp concerns will change over time, as will lifestyle and priorities. Remember to treat every client with the same attention to detail, and you will gain a loyal, satisfied clientele.\r\n\r\nSo where do you start?\r\n\r\nThe pillars of a great colour consultation are:\r\n<ul>\r\n \t<li>Hair and scalp assessment<\/li>\r\n \t<li>Colour assessment, including:\r\n<ul>\r\n \t<li>Lifestyle and budget assessment<\/li>\r\n \t<li>Strand test and patch test<\/li>\r\n<\/ul>\r\n<\/li>\r\n<\/ul>\r\nThis section will focus on the hair and scalp assessment.\r\n\r\nWhen assessing the client's hair and scalp, you should be looking for the conditions that will determine your colouring process. Product choice, application technique, processing time, and the final outcome are all dependent on these conditions.\r\n\r\nTo begin with, assess the hair\u2019s [pb_glossary id=\"208\"]texture[\/pb_glossary], [pb_glossary id=\"205\"]porosity[\/pb_glossary], and [pb_glossary id=\"207\"]elasticity[\/pb_glossary].\r\n<h1>Texture<\/h1>\r\n<p style=\"text-align: start;\"><img class=\"aligncenter wp-image-762 size-large\" src=\"https:\/\/opentextbc.ca\/haircolourforhairstylistslevel2\/wp-content\/uploads\/sites\/329\/2021\/01\/Hair-texture-scaled-1.jpg\" alt=\"Models with examples of fine, medium, and coarse hair.\" width=\"1024\" height=\"319\" \/><\/p>\r\nWhen looking at the hair\u2019s texture, you need to be aware of the fundamental differences between hair of fine, medium, and coarse texture as they relate to hair colour. Processing times and the alkalinity of your chosen product will depend largely on texture.\r\n\r\nFine hair has a smaller [pb_glossary id=\"202\"]cortex[\/pb_glossary] layer and may lack a medulla altogether. This makes fine hair more prone to damage as the cortex is what gives hair its strength and elasticity. Fine hair that has been previously coloured will be more likely to have higher or [pb_glossary id=\"211\"]extreme porosity[\/pb_glossary].\r\n\r\nMedium textured hair is most likely to behave predictably while colouring. This is because of its [pb_glossary id=\"210\"]average porosity[\/pb_glossary] and balanced cortex-to-cuticle ratio.\r\n\r\nCoarse hair has a wider diameter, which means a larger cortex to cuticle ratio and a strong medulla layer. Coarse hair is less prone to damage but is usually more resistant to the colouring process as it is more likely to have [pb_glossary id=\"209\"]resistant porosity[\/pb_glossary].\r\n\r\nYou can assess texture by look and feel.\r\n<h1>Porosity<\/h1>\r\nPorosity refers to the hair\u2019s ability to absorb moisture or chemicals. Hair with average porosity behaves predictably and can handle most colour services. However, in cases where hair has resistant or extreme porosity, there are considerations which must be made.\r\n\r\n[pb_glossary id=\"209\"]Resistant porosity[\/pb_glossary] is the term used when the cuticle layers are tightly packed, which affects the ability of the hair to absorb colour. Alternatively, extreme porosity is the term given to hair that has a damaged cuticle, in which the cuticle scales are raised or missing. A damaged cuticle is usually the result of\u00a0 excessive chemical treatments, or it may be due to environmental damage, such as over exposure to the sun. Hair that is very porous requires greater care. It may absorb colour too intensely, yet it also has the tendency to lose artificial colour more quickly.\r\n\r\n[pb_glossary id=\"215\"]Uneven porosity[\/pb_glossary] is present when hair displays two or more types of porosity at different areas throughout the head or along the length of the hair strand. Uneven porosity will likely require multiple formulas in order to achieve an even colour result.\r\n\r\nTo determine porosity, you can assess the hair by running your thumb and forefinger from ends toward the scalp on a small section of the hair. Hair that feels rough or backcombs easily has higher porosity. Hair with resistant porosity will feel smooth.\r\n\r\n<strong><a href=\"https:\/\/viu.video.yuja.com\/V\/Video?v=667196&amp;node=3185938&amp;a=1003095782&amp;autoplay=1\">Video: Porosity Feel Test<\/a><\/strong>\r\n\r\nNote: Video has no sound.\r\n\r\n<iframe title=\"Embedded Media titled: Porosity Test\" src=\"https:\/\/viu.video.yuja.com\/V\/Video?v=667196&amp;node=3185938&amp;a=1003095782&amp;preload=false\" width=\"560\" height=\"315\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\"><\/iframe>\r\n\r\nIf you are still unsure which porosity is present on your client's hair, you can conduct a quick and simple porosity test.\r\n<ul>\r\n \t<li>Place a strand of\u00a0<em>clean<\/em> hair into a clear glass of room temperature water.<\/li>\r\n \t<li>Allow the strand to sit in the water for 15 minutes.<\/li>\r\n<\/ul>\r\n<p style=\"text-align: center;\">Resistant porosity \u2013 hair will float to the top of the water.<\/p>\r\n<p style=\"text-align: center;\">Normal porosity \u2013 hair will float in the middle of the water glass.<\/p>\r\n<p style=\"text-align: center;\">Extreme porosity \u2013 hair will sink to the bottom of the glass.<\/p>\r\n<img class=\"aligncenter wp-image-150\" src=\"https:\/\/opentextbc.ca\/haircolourforhairstylistslevel2\/wp-content\/uploads\/sites\/329\/2021\/01\/porosity-test.png\" alt=\"\" width=\"375\" height=\"276\" \/>\r\n<h1>Elasticity<\/h1>\r\nElasticity is the hair\u2019s ability to stretch and return to its original shape without snapping. Poor elasticity is a sign of a weakened cortex.\r\n\r\nTo test the elasticity of your client\u2019s hair, you can conduct the following test:\r\n<ol>\r\n \t<li>Remove a single strand of your client\u2019s hair, preferably from the side of the head.<\/li>\r\n \t<li>Holding it securely in one hand, run your thumbnail and index finger down the hair strand as if curling a ribbon. This will create a series of tight curls.<\/li>\r\n \t<li>Gently pull the hair taut.<\/li>\r\n \t<li>After 10 seconds, release the hair and observe whether it has returned to the original curl pattern. If it returns less than 50%, it has poor elasticity.<\/li>\r\n<\/ol>\r\nIn the case of poor elasticity, care must be taken to avoid causing additional swelling of the hair while colouring, as breakage will likely result.\r\n<h1>Scalp Considerations<\/h1>\r\nIn addition to checking the hair\u2019s structure, you should also be aware of any scalp irregularities. If you observe any abrasions, do not proceed with the hair colouring service. Inform your client of what you see, and ask that they return once it has healed. It could be something as simple as a bug bite that they scratched too vigorously, but you should avoid applying any chemical solution to an open sore as this could cause discomfort or spread infection.\r\n\r\nOther scalp conditions to be on the lookout for are [pb_glossary id=\"216\"]psoriasis[\/pb_glossary], [pb_glossary id=\"217\"]ringworm[\/pb_glossary], [pb_glossary id=\"218\"]scabies[\/pb_glossary], and [pb_glossary id=\"219\"]head lice[\/pb_glossary]. If any of these conditions are present, refer your client to a physician and discontinue the service.\r\n\r\nIf your client\u2019s scalp is clear of irregularities, be sure to ask the client about skin or scalp sensitivities, especially any that have resulted from previous colouring services, such as itchiness, burning, or discomfort. There are options for colouring products that may be gentler to the scalp, such as one with a low alkalinity. If you believe your client has a sensitivity to ammonia, you may choose to use a product which contains an alternate aniline derivative. An allergy or sensitivity can be determined through a predisposition or patch test (refer to <a class=\"internal\" href=\"\/haircolourforhairstylistslevel2\/chapter\/colour-assessment\/\">Chapter 2.3<\/a> for more information on how to conduct this simple test).\r\n\r\nBe aware that some medical conditions and treatments can also affect the hair\u2019s structure. A tactful way to inquire about such conditions is to ask if your client has noticed any sudden or recent changes to their hair. Brittle hair or sudden hair loss are just two scenarios which may point to underlying health conditions or treatments.\r\n\r\nOnce you have observed and gathered all crucial information about your client\u2019s hair and scalp, it\u2019s time to move on to the colour assessment!\r\n<h3>Media Attributions<\/h3>\r\n<ul>\r\n \t<li>\"Fine, Medium, and Course Hair\" by A. Magtiza is under a <a class=\"internal\" href=\"https:\/\/creativecommons.org\/licenses\/by\/4.0\/\">CC BY 4.0 Licence<\/a>. It includes the following photographs:\r\n<ul>\r\n \t<li><a class=\"internal\" href=\"https:\/\/www.pexels.com\/photo\/close-up-photo-of-woman-wearing-white-top-2748091\/\">Fine-textured hair photo<\/a> by <a class=\"internal\" href=\"https:\/\/www.pexels.com\/@julia-kuzenkov-442028?utm_content=attributionCopyText&amp;utm_medium=referral&amp;utm_source=pexels\">Julia Kuzenkov<\/a> from <a class=\"internal\" href=\"https:\/\/www.pexels.com\/license\/\">Pexels<\/a>.<\/li>\r\n \t<li><a class=\"internal\" href=\"https:\/\/www.pexels.com\/photo\/unemotional-woman-with-freckles-and-big-blue-eyes-5634155\/\">Medium-textured hair photo<\/a> by <a class=\"internal\" href=\"https:\/\/www.pexels.com\/@francesca-zama-3481862?utm_content=attributionCopyText&amp;utm_medium=referral&amp;utm_source=pexels\">Francesca Zama<\/a> from <a class=\"internal\" href=\"https:\/\/www.pexels.com\/license\/\">Pexels<\/a>.<\/li>\r\n \t<li><a class=\"internal\" href=\"https:\/\/www.pexels.com\/photo\/blue-haired-female-897314\/\">Course-textured hair photo<\/a> by <a class=\"internal\" href=\"https:\/\/www.pexels.com\/@godisable-jacob-226636?utm_content=attributionCopyText&amp;utm_medium=referral&amp;utm_source=pexels\">Godisable Jacob<\/a> from <a class=\"internal\" href=\"https:\/\/www.pexels.com\/license\/\">Pexels<\/a>.<\/li>\r\n<\/ul>\r\n<\/li>\r\n \t<li><a href=\"https:\/\/viu.video.yuja.com\/V\/Video?v=667196&amp;node=3185938&amp;a=1003095782&amp;autoplay=1\">\"Porosity Feel Test\" video<\/a> by A. Magtiza is under a <a class=\"internal\" href=\"https:\/\/creativecommons.org\/licenses\/by\/4.0\/\">CC BY 4.0 Licence<\/a>.<\/li>\r\n \t<li>Porosity Test image by A. Magtiza is under a <a class=\"internal\" href=\"https:\/\/creativecommons.org\/licenses\/by\/4.0\/\">CC BY 4.0 Licence<\/a>.<\/li>\r\n<\/ul>","rendered":"<p>A thorough client consultation is the basis for a successful hair colouring service. It is your responsibility to assess the characteristics of the hair and scalp and to ask specific questions that will determine your choice of colouring product, technique, and placement.<\/p>\n<p>A new client is not the only client who should be receiving a thorough colour consultation. Hair and scalp concerns will change over time, as will lifestyle and priorities. Remember to treat every client with the same attention to detail, and you will gain a loyal, satisfied clientele.<\/p>\n<p>So where do you start?<\/p>\n<p>The pillars of a great colour consultation are:<\/p>\n<ul>\n<li>Hair and scalp assessment<\/li>\n<li>Colour assessment, including:\n<ul>\n<li>Lifestyle and budget assessment<\/li>\n<li>Strand test and patch test<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>This section will focus on the hair and scalp assessment.<\/p>\n<p>When assessing the client&#8217;s hair and scalp, you should be looking for the conditions that will determine your colouring process. Product choice, application technique, processing time, and the final outcome are all dependent on these conditions.<\/p>\n<p>To begin with, assess the hair\u2019s <a class=\"glossary-term\" aria-haspopup=\"dialog\" aria-describedby=\"definition\" href=\"#term_49_208\">texture<\/a>, <a class=\"glossary-term\" aria-haspopup=\"dialog\" aria-describedby=\"definition\" href=\"#term_49_205\">porosity<\/a>, and <a class=\"glossary-term\" aria-haspopup=\"dialog\" aria-describedby=\"definition\" href=\"#term_49_207\">elasticity<\/a>.<\/p>\n<h1>Texture<\/h1>\n<p style=\"text-align: start;\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-762 size-large\" src=\"https:\/\/opentextbc.ca\/haircolourforhairstylistslevel2\/wp-content\/uploads\/sites\/329\/2021\/01\/Hair-texture-scaled-1.jpg\" alt=\"Models with examples of fine, medium, and coarse hair.\" width=\"1024\" height=\"319\" \/><\/p>\n<p>When looking at the hair\u2019s texture, you need to be aware of the fundamental differences between hair of fine, medium, and coarse texture as they relate to hair colour. Processing times and the alkalinity of your chosen product will depend largely on texture.<\/p>\n<p>Fine hair has a smaller <a class=\"glossary-term\" aria-haspopup=\"dialog\" aria-describedby=\"definition\" href=\"#term_49_202\">cortex<\/a> layer and may lack a medulla altogether. This makes fine hair more prone to damage as the cortex is what gives hair its strength and elasticity. Fine hair that has been previously coloured will be more likely to have higher or <a class=\"glossary-term\" aria-haspopup=\"dialog\" aria-describedby=\"definition\" href=\"#term_49_211\">extreme porosity<\/a>.<\/p>\n<p>Medium textured hair is most likely to behave predictably while colouring. This is because of its <a class=\"glossary-term\" aria-haspopup=\"dialog\" aria-describedby=\"definition\" href=\"#term_49_210\">average porosity<\/a> and balanced cortex-to-cuticle ratio.<\/p>\n<p>Coarse hair has a wider diameter, which means a larger cortex to cuticle ratio and a strong medulla layer. Coarse hair is less prone to damage but is usually more resistant to the colouring process as it is more likely to have <a class=\"glossary-term\" aria-haspopup=\"dialog\" aria-describedby=\"definition\" href=\"#term_49_209\">resistant porosity<\/a>.<\/p>\n<p>You can assess texture by look and feel.<\/p>\n<h1>Porosity<\/h1>\n<p>Porosity refers to the hair\u2019s ability to absorb moisture or chemicals. Hair with average porosity behaves predictably and can handle most colour services. However, in cases where hair has resistant or extreme porosity, there are considerations which must be made.<\/p>\n<p><a class=\"glossary-term\" aria-haspopup=\"dialog\" aria-describedby=\"definition\" href=\"#term_49_209\">Resistant porosity<\/a> is the term used when the cuticle layers are tightly packed, which affects the ability of the hair to absorb colour. Alternatively, extreme porosity is the term given to hair that has a damaged cuticle, in which the cuticle scales are raised or missing. A damaged cuticle is usually the result of\u00a0 excessive chemical treatments, or it may be due to environmental damage, such as over exposure to the sun. Hair that is very porous requires greater care. It may absorb colour too intensely, yet it also has the tendency to lose artificial colour more quickly.<\/p>\n<p><a class=\"glossary-term\" aria-haspopup=\"dialog\" aria-describedby=\"definition\" href=\"#term_49_215\">Uneven porosity<\/a> is present when hair displays two or more types of porosity at different areas throughout the head or along the length of the hair strand. Uneven porosity will likely require multiple formulas in order to achieve an even colour result.<\/p>\n<p>To determine porosity, you can assess the hair by running your thumb and forefinger from ends toward the scalp on a small section of the hair. Hair that feels rough or backcombs easily has higher porosity. Hair with resistant porosity will feel smooth.<\/p>\n<p><strong><a href=\"https:\/\/viu.video.yuja.com\/V\/Video?v=667196&amp;node=3185938&amp;a=1003095782&amp;autoplay=1\">Video: Porosity Feel Test<\/a><\/strong><\/p>\n<p>Note: Video has no sound.<\/p>\n<p><iframe loading=\"lazy\" title=\"Embedded Media titled: Porosity Test\" src=\"https:\/\/viu.video.yuja.com\/V\/Video?v=667196&amp;node=3185938&amp;a=1003095782&amp;preload=false\" width=\"560\" height=\"315\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\"><\/iframe><\/p>\n<p>If you are still unsure which porosity is present on your client&#8217;s hair, you can conduct a quick and simple porosity test.<\/p>\n<ul>\n<li>Place a strand of\u00a0<em>clean<\/em> hair into a clear glass of room temperature water.<\/li>\n<li>Allow the strand to sit in the water for 15 minutes.<\/li>\n<\/ul>\n<p style=\"text-align: center;\">Resistant porosity \u2013 hair will float to the top of the water.<\/p>\n<p style=\"text-align: center;\">Normal porosity \u2013 hair will float in the middle of the water glass.<\/p>\n<p style=\"text-align: center;\">Extreme porosity \u2013 hair will sink to the bottom of the glass.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-150\" src=\"https:\/\/opentextbc.ca\/haircolourforhairstylistslevel2\/wp-content\/uploads\/sites\/329\/2021\/01\/porosity-test.png\" alt=\"\" width=\"375\" height=\"276\" \/><\/p>\n<h1>Elasticity<\/h1>\n<p>Elasticity is the hair\u2019s ability to stretch and return to its original shape without snapping. Poor elasticity is a sign of a weakened cortex.<\/p>\n<p>To test the elasticity of your client\u2019s hair, you can conduct the following test:<\/p>\n<ol>\n<li>Remove a single strand of your client\u2019s hair, preferably from the side of the head.<\/li>\n<li>Holding it securely in one hand, run your thumbnail and index finger down the hair strand as if curling a ribbon. This will create a series of tight curls.<\/li>\n<li>Gently pull the hair taut.<\/li>\n<li>After 10 seconds, release the hair and observe whether it has returned to the original curl pattern. If it returns less than 50%, it has poor elasticity.<\/li>\n<\/ol>\n<p>In the case of poor elasticity, care must be taken to avoid causing additional swelling of the hair while colouring, as breakage will likely result.<\/p>\n<h1>Scalp Considerations<\/h1>\n<p>In addition to checking the hair\u2019s structure, you should also be aware of any scalp irregularities. If you observe any abrasions, do not proceed with the hair colouring service. Inform your client of what you see, and ask that they return once it has healed. It could be something as simple as a bug bite that they scratched too vigorously, but you should avoid applying any chemical solution to an open sore as this could cause discomfort or spread infection.<\/p>\n<p>Other scalp conditions to be on the lookout for are <a class=\"glossary-term\" aria-haspopup=\"dialog\" aria-describedby=\"definition\" href=\"#term_49_216\">psoriasis<\/a>, <a class=\"glossary-term\" aria-haspopup=\"dialog\" aria-describedby=\"definition\" href=\"#term_49_217\">ringworm<\/a>, <a class=\"glossary-term\" aria-haspopup=\"dialog\" aria-describedby=\"definition\" href=\"#term_49_218\">scabies<\/a>, and <a class=\"glossary-term\" aria-haspopup=\"dialog\" aria-describedby=\"definition\" href=\"#term_49_219\">head lice<\/a>. If any of these conditions are present, refer your client to a physician and discontinue the service.<\/p>\n<p>If your client\u2019s scalp is clear of irregularities, be sure to ask the client about skin or scalp sensitivities, especially any that have resulted from previous colouring services, such as itchiness, burning, or discomfort. There are options for colouring products that may be gentler to the scalp, such as one with a low alkalinity. If you believe your client has a sensitivity to ammonia, you may choose to use a product which contains an alternate aniline derivative. An allergy or sensitivity can be determined through a predisposition or patch test (refer to <a class=\"internal\" href=\"\/haircolourforhairstylistslevel2\/chapter\/colour-assessment\/\">Chapter 2.3<\/a> for more information on how to conduct this simple test).<\/p>\n<p>Be aware that some medical conditions and treatments can also affect the hair\u2019s structure. A tactful way to inquire about such conditions is to ask if your client has noticed any sudden or recent changes to their hair. Brittle hair or sudden hair loss are just two scenarios which may point to underlying health conditions or treatments.<\/p>\n<p>Once you have observed and gathered all crucial information about your client\u2019s hair and scalp, it\u2019s time to move on to the colour assessment!<\/p>\n<h3>Media Attributions<\/h3>\n<ul>\n<li>&#8220;Fine, Medium, and Course Hair&#8221; by A. Magtiza is under a <a class=\"internal\" href=\"https:\/\/creativecommons.org\/licenses\/by\/4.0\/\">CC BY 4.0 Licence<\/a>. It includes the following photographs:\n<ul>\n<li><a class=\"internal\" href=\"https:\/\/www.pexels.com\/photo\/close-up-photo-of-woman-wearing-white-top-2748091\/\">Fine-textured hair photo<\/a> by <a class=\"internal\" href=\"https:\/\/www.pexels.com\/@julia-kuzenkov-442028?utm_content=attributionCopyText&amp;utm_medium=referral&amp;utm_source=pexels\">Julia Kuzenkov<\/a> from <a class=\"internal\" href=\"https:\/\/www.pexels.com\/license\/\">Pexels<\/a>.<\/li>\n<li><a class=\"internal\" href=\"https:\/\/www.pexels.com\/photo\/unemotional-woman-with-freckles-and-big-blue-eyes-5634155\/\">Medium-textured hair photo<\/a> by <a class=\"internal\" href=\"https:\/\/www.pexels.com\/@francesca-zama-3481862?utm_content=attributionCopyText&amp;utm_medium=referral&amp;utm_source=pexels\">Francesca Zama<\/a> from <a class=\"internal\" href=\"https:\/\/www.pexels.com\/license\/\">Pexels<\/a>.<\/li>\n<li><a class=\"internal\" href=\"https:\/\/www.pexels.com\/photo\/blue-haired-female-897314\/\">Course-textured hair photo<\/a> by <a class=\"internal\" href=\"https:\/\/www.pexels.com\/@godisable-jacob-226636?utm_content=attributionCopyText&amp;utm_medium=referral&amp;utm_source=pexels\">Godisable Jacob<\/a> from <a class=\"internal\" href=\"https:\/\/www.pexels.com\/license\/\">Pexels<\/a>.<\/li>\n<\/ul>\n<\/li>\n<li><a href=\"https:\/\/viu.video.yuja.com\/V\/Video?v=667196&amp;node=3185938&amp;a=1003095782&amp;autoplay=1\">&#8220;Porosity Feel Test&#8221; video<\/a> by A. Magtiza is under a <a class=\"internal\" href=\"https:\/\/creativecommons.org\/licenses\/by\/4.0\/\">CC BY 4.0 Licence<\/a>.<\/li>\n<li>Porosity Test image by A. Magtiza is under a <a class=\"internal\" href=\"https:\/\/creativecommons.org\/licenses\/by\/4.0\/\">CC BY 4.0 Licence<\/a>.<\/li>\n<\/ul>\n<div class=\"glossary\"><span class=\"screen-reader-text\" id=\"definition\">definition<\/span><template id=\"term_49_208\"><div class=\"glossary__definition\" role=\"dialog\" data-id=\"term_49_208\"><div tabindex=\"-1\"><p>The diameter of the hair strand. Texture can be described as fine, medium, or coarse.<\/p>\n<\/div><button><span aria-hidden=\"true\">&times;<\/span><span class=\"screen-reader-text\">Close definition<\/span><\/button><\/div><\/template><template id=\"term_49_205\"><div class=\"glossary__definition\" role=\"dialog\" data-id=\"term_49_205\"><div tabindex=\"-1\"><p>The hair's ability to absorb moisture or chemicals.<\/p>\n<\/div><button><span aria-hidden=\"true\">&times;<\/span><span class=\"screen-reader-text\">Close definition<\/span><\/button><\/div><\/template><template id=\"term_49_207\"><div class=\"glossary__definition\" role=\"dialog\" data-id=\"term_49_207\"><div tabindex=\"-1\"><p>The hair's ability to stretch and return to its original shape without snapping.<\/p>\n<\/div><button><span aria-hidden=\"true\">&times;<\/span><span class=\"screen-reader-text\">Close definition<\/span><\/button><\/div><\/template><template id=\"term_49_202\"><div class=\"glossary__definition\" role=\"dialog\" data-id=\"term_49_202\"><div tabindex=\"-1\"><p>The second layer of a hair strand, which provides hair with its strength and elasticity.<\/p>\n<\/div><button><span aria-hidden=\"true\">&times;<\/span><span class=\"screen-reader-text\">Close definition<\/span><\/button><\/div><\/template><template id=\"term_49_211\"><div class=\"glossary__definition\" role=\"dialog\" data-id=\"term_49_211\"><div tabindex=\"-1\"><p>Hair readily absorbs moisture and chemical products. Cuticle scales are lifted and\/or damaged.<\/p>\n<\/div><button><span aria-hidden=\"true\">&times;<\/span><span class=\"screen-reader-text\">Close definition<\/span><\/button><\/div><\/template><template id=\"term_49_210\"><div class=\"glossary__definition\" role=\"dialog\" data-id=\"term_49_210\"><div tabindex=\"-1\"><p>Hair absorbs moisture and chemical products at a common rate. Cuticle scales are intact and slightly raised.<\/p>\n<\/div><button><span aria-hidden=\"true\">&times;<\/span><span class=\"screen-reader-text\">Close definition<\/span><\/button><\/div><\/template><template id=\"term_49_209\"><div class=\"glossary__definition\" role=\"dialog\" data-id=\"term_49_209\"><div tabindex=\"-1\"><p>Hair that does not readily absorb moisture or chemical products. Cuticle scales are tightly packed and smooth.<\/p>\n<\/div><button><span aria-hidden=\"true\">&times;<\/span><span class=\"screen-reader-text\">Close definition<\/span><\/button><\/div><\/template><template id=\"term_49_215\"><div class=\"glossary__definition\" role=\"dialog\" data-id=\"term_49_215\"><div tabindex=\"-1\"><p>Hair that displays one or more types of porosity at different areas among the hair.<\/p>\n<\/div><button><span aria-hidden=\"true\">&times;<\/span><span class=\"screen-reader-text\">Close definition<\/span><\/button><\/div><\/template><template id=\"term_49_216\"><div class=\"glossary__definition\" role=\"dialog\" data-id=\"term_49_216\"><div tabindex=\"-1\"><p>A chronic skin disease that results in scaly, often itchy areas in patches on the body and scalp.<\/p>\n<\/div><button><span aria-hidden=\"true\">&times;<\/span><span class=\"screen-reader-text\">Close definition<\/span><\/button><\/div><\/template><template id=\"term_49_217\"><div class=\"glossary__definition\" role=\"dialog\" data-id=\"term_49_217\"><div tabindex=\"-1\"><p>Ringworm of the scalp (tinea capitis) is a fungal infection of the scalp and hair shafts.<\/p>\n<\/div><button><span aria-hidden=\"true\">&times;<\/span><span class=\"screen-reader-text\">Close definition<\/span><\/button><\/div><\/template><template id=\"term_49_218\"><div class=\"glossary__definition\" role=\"dialog\" data-id=\"term_49_218\"><div tabindex=\"-1\"><p>A condition caused by a tiny bug called the human itch mite. If these mites burrow into your scalp, your scalp can become quite itchy.<\/p>\n<\/div><button><span aria-hidden=\"true\">&times;<\/span><span class=\"screen-reader-text\">Close definition<\/span><\/button><\/div><\/template><template id=\"term_49_219\"><div class=\"glossary__definition\" role=\"dialog\" data-id=\"term_49_219\"><div tabindex=\"-1\"><p>A condition in which the head hair and the scalp is infected by the head louse. (Pediculosis Capitis)<\/p>\n<\/div><button><span aria-hidden=\"true\">&times;<\/span><span class=\"screen-reader-text\">Close definition<\/span><\/button><\/div><\/template><\/div>","protected":false},"author":90,"menu_order":2,"template":"","meta":{"pb_show_title":"on","pb_short_title":"","pb_subtitle":"","pb_authors":[],"pb_section_license":""},"chapter-type":[],"contributor":[],"license":[],"class_list":["post-49","chapter","type-chapter","status-publish","hentry"],"part":45,"_links":{"self":[{"href":"https:\/\/opentextbc.ca\/haircolourforhairstylistslevel2\/wp-json\/pressbooks\/v2\/chapters\/49","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/opentextbc.ca\/haircolourforhairstylistslevel2\/wp-json\/pressbooks\/v2\/chapters"}],"about":[{"href":"https:\/\/opentextbc.ca\/haircolourforhairstylistslevel2\/wp-json\/wp\/v2\/types\/chapter"}],"author":[{"embeddable":true,"href":"https:\/\/opentextbc.ca\/haircolourforhairstylistslevel2\/wp-json\/wp\/v2\/users\/90"}],"version-history":[{"count":7,"href":"https:\/\/opentextbc.ca\/haircolourforhairstylistslevel2\/wp-json\/pressbooks\/v2\/chapters\/49\/revisions"}],"predecessor-version":[{"id":457,"href":"https:\/\/opentextbc.ca\/haircolourforhairstylistslevel2\/wp-json\/pressbooks\/v2\/chapters\/49\/revisions\/457"}],"part":[{"href":"https:\/\/opentextbc.ca\/haircolourforhairstylistslevel2\/wp-json\/pressbooks\/v2\/parts\/45"}],"metadata":[{"href":"https:\/\/opentextbc.ca\/haircolourforhairstylistslevel2\/wp-json\/pressbooks\/v2\/chapters\/49\/metadata\/"}],"wp:attachment":[{"href":"https:\/\/opentextbc.ca\/haircolourforhairstylistslevel2\/wp-json\/wp\/v2\/media?parent=49"}],"wp:term":[{"taxonomy":"chapter-type","embeddable":true,"href":"https:\/\/opentextbc.ca\/haircolourforhairstylistslevel2\/wp-json\/pressbooks\/v2\/chapter-type?post=49"},{"taxonomy":"contributor","embeddable":true,"href":"https:\/\/opentextbc.ca\/haircolourforhairstylistslevel2\/wp-json\/wp\/v2\/contributor?post=49"},{"taxonomy":"license","embeddable":true,"href":"https:\/\/opentextbc.ca\/haircolourforhairstylistslevel2\/wp-json\/wp\/v2\/license?post=49"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}