The diameter of a single hair fiber varies from person to person; but it is usually around 0.05 to 0.09 millimeters. shed and replaced from below. 2. There are three types of hair - lanugo, vellus and terminal. Keratin, which is a strong protein, is dispersed throughout the hair matrix, giving the hair strength. Generally speaking, there are 3 layers, which every hair is made up of. course hair will have more overlapping layers of cuticles than someone layers. This is what both protects the cortex and holds the rope like cells together. follicle to form the dermal papilla. Hair! The model shows increased light reflection, since there are more interfaces, being roughly 3-times higher in this case than in the preceding model. The middle layer of the hair shaft is called the cortex, made of keratin fibers. If the ‘bark’ is stripped off to expose the centre, the hair may break. As you know, macrofibrils joining together form the cortex. (So, in other words, you might experience hair loss before you’ve even been born!). The hair bulb is the structure formed by actively growing cells. starts growing down into the dermis, and forms the outside of each hair Diagram of reflection in hair with empty cuticular holes. You now know all about the various structures which form the hair follicle and hair shaft. The cuticle. The Medulla. Here's a complete overview of its biology, structure, and function. The uppermost layer forms the This layer is what gives the hair its mechanical and physical properties. The hottest wig glue today. Let’s have a … surface of the skin. Temperature regulation (sweat glands to puzzling type of hair loss presents. Cortex Beauty creates a range of hair and beauty products, so that gorgeous, vibrant, healthy hair is accessible to every person. On the next page, learn how all these different parts of the hair follicle interact to create the hair on your head over and over again throughout life. Aside from that, this layer determines how strong or brittle the hair is. It's also the only bodily structure that can completely renew itself without scarring. Cortex – It is the middle part of the hair, which contains the pigment that gives the hair its color and elasticity. Tags: Dicot Root Cross Section Diagram, Hair Sectioning Diagrams for Color, Hair Follicle Model, Simple Skin Cross Section Diagram, Scalp Hair Diagram, Cross Section of Skin Layers, Spinal Cord Cross Section Blank, Hair … area of actively growing cells. This thin and colorless layer made up of between six to ten overlapping layers of long cell remnants, serves as a protection to the cortex. It is usually thick and firm. Continued use of Shea butter on the hair comes with other added benefits including a minor sun screen that adds additional protection to the hair to prevent hair damage due to UV exposure from the Sun. Ithas various functions including: 1. However, as not all hairs have a medulla, the cortex forms the innermost layer of some thinner, finer, hairs. Hair shaft cells are similar at first. Image 1: The hair and the different layers. Home of the Bold Hold product line. So far it has been In the diagram of a hair root shown, where is the cortex? The, As long as the dermal papilla is healthy it stimulates the cells of the matrix in multiplication, and hair remains firmly anchored, thick, and durable. It is made up of cells that tile over each other partially overlapping. The medulla is the core of the hair. Diagram of a hair follicle and cross section of the skin layers vector art, clipart and stock vectors. The color lasts during the hair cycle, from the genesis to the end, when the hair falls. The cuticle functions as a protective outer layer. The amino acids are joined together in a chain, like beads on a string. Cross-section Diagrams And Representations 17 Best Images About National Portrait Gallery On. follicle, they begin to change shape, and a protein called keratin develops inside the cells. It is nonliving and cannot replace or replenish itself. The outermost layer of the hair shaft is the cuticle. sheath at the attachment point of the arrector pili Protection (against sun, rain, bugs, infection, etc).Skin has two main parts - the epidermis anddermis.The epidermis has fivelayers. Read the skull expansion section to learn more. (see hair shaft structure diagram below). those that include a medulla at their centre, forming their innermost layer). A hair follicle is a tunnel shaped structure in the epidermis outer layer of the skin. Someone who has thick, Excretion (the skin is sometimes referred to as the \"third kidney\"). This allows capillaries (blood vessels) to enter the papilla and provide nutrients for the hair The hair shaft is formed by three layers. Picture Source: res.cloudinary.com Layers of the hair. ago, and I just wanted to update you on my progress. Clearly then, sulfur forms a very important component of hair structure. This region is constantly growing and The cortex is what gives hair its color and texture. Some parts of the Hair Follicle Diagram are also color-coded to highlight their importance. Thank you! When you release the hair, the proteins coil up again. Itis the middle layer, and it makes up most of the hair fibers. layer merges into the outer root sheath Excessive shedding can, of course, produce dandruff. As already stated, hair cells are mostly made from keratin (up to 95%). region of the scalp (1). These cells coalesce tightly and are placed parallel to the axis of the shaft. 5-alpha reductase is an enzyme that And cysteine is one of just two amino acids that have a high sulfur content (the other being methionine). The information processed in the cerebellum and cerebral cortex of the brain allows the body to cope with changes in speed and the direction of the head. The damaged cuticle lifts away from the center of the hair shaft (exposing the cortex and medulla), allowing essential moisture to evaporate, leaving the hair dull, coarse and brittle. Choose from 176 different sets of diagram quiz structure hair follicle flashcards on Quizlet. The sebum production decreases in women throughout their lives. The cuticle is an outside layer. You can just see the cuticle layers in the photo above. The cuticle is composed of multiple layers of very thin, scaly cells that overlap each other like roof shingles with their free edges directed upward. (2) HAIR SHAFT The hair shaft is formed by three layers. Skin is the largest organ in the body. As The hair shaft is the solitary part of the hair follicle that fully exits the surface of the skin. When the cuticle is damaged or destroyed the medulla is unable to maintain its moisture homeostasis and suffers from dehydration. Hair is much more complicated than it appears. has various functions including: Skin has two main parts - the epidermis and The terminal part of the hair follicle seated within the skin is called a hair bulb. The innermost layer of the hair shaft is named the medulla. The uppermost layer forms thesurface of the skin and is made from dead cell… It’s the … It acts as a barrier to foreign particles. A normal cuticle has a smooth surface that allows light to penetrate to the cortex. The follicle also has a bulge directly below the sebaceous gland in the outer root muscle*. to supply the nutrients needed for skin cells to grow. Three different types of hair cell then form A healthy cuticle layer is what gives hair its natural shiny appearance. Hair Density, Numbers of Hairs, Rate of growth The average human scalp measures approximately 120 sq. It is both the cortex and the medulla that holds the hair… Illustration of human Hair Anatomy. The innermost layer of the hair shaft is named the medulla. When you stretch a hair, you are straightening the coiled proteins in the cortex. Human hair is primarily composed of three layers: the cuticle, cortex, and medulla. Since hair growth is basically just a collection of dead cells being pushed along a The cuticle is the hair’s outer protective layer and is connected to the internal root sheath. Hair structure and hair growth are surprisingly complex. Below the epidermis is the dermis. The dermis then grows upwards into the base of the At the base of the hair bulb, the germinating As shown in the diagram to the right, there are three layers to hair. These cells produce the, At the base of each hair bulb is the dermal papilla containing a vascular network which is essential for the nourishment of the growing hairs. The typical mammalian hair consists of the shaft, protruding above the skin, and the root, which is sunk in a pit (follicle) beneath the skin surface.Except for a few growing cells at the base of the root, the hair is dead tissue, composed of keratin and related proteins. After your lanugo hair falls out, it gets replaced by vellus hair - this is the tiny, near invisible hair that covers your body. The innermost region, the medulla, is not always present and is an open, unstructured region. © 2013 American Shea Butter Institute. The deepest layer of the epidermis is the germinating The epidermis is the outermost layer of the skin. The third main hair layer is the cuticle. The most important one of these glands is the sebaceous gland, which produces and secretes the natural oils lubricating hairs, namely sebum. The cortex provides strength to the hair shaft and also determines the color and texture of your hair. shaft to grow. Its diameter, of between 45 μm and 90 μm, is determined by the number of keratinised cells, which are pigmented and more or less the same colour as the hair. However, a lot of vellus hair turns into terminal hair (which includes eyebrows, eyelashes and scalp hair). The production also decreases in men, but not as much as in women. Generally speaking, there are 3 layers, which every hair is made up of. Thinking and voluntary movements begin in the cortex. referred to as the "third kidney"). The cortex, or the middle layer, is the main part of the hair. As Learn diagram quiz structure hair follicle with free interactive flashcards. Since the cortex can’t heal itself, the only way to get rid of split ends is to cut them off. All Rights Reserved. The Hair Diagram Each hair arises from an indentation on the epidermis. Anagen Growth stage of hair follicle cycle ... During the migration of the cells from the hair bulb to compose the cortex, the shapes of them become more fusiform. This is called the hair bulb. Mammalian hair is composed of a protein, keratin. It is the supporting structure. It helps transmit sensory information. The epidermis has five Now that you know what exactly it is made of, it is time to learn about the layers of hair. It is the protein that also makes up the nails. follicle. This layer of the hair is made from tiny fibers of keratin running parallel to each other. The cuticle is made from 6 Cortical cells, cell membrane complex and melanin granules are visible. The hair shaft is the portion of your hair that projects from your scalp. When you get split ends, you’re seeing the cortex at its worst. Cortex – It is the middle part of the hair, which contains the pigment that gives the hair its color and elasticity. Shea butter serves as a natural replacement for decreasing sebum. (5-alpha reductase and androgen receptor sites) exist within various structures of the hair follicle. The innermost region, the medulla, is not always present and is an open, unstructured region. However, it's a puzzle that, I believe, has now been solved. The cortex. Anagen Growth stage of hair follicle cycle ... During the migration of the cells from the hair bulb to compose the cortex, the shapes of them become more fusiform. This explains why the quality and appearance of the hair is dependent on the health and well-being of the dermal papilla, the hair follicle (important to Hair care and maintenance), the hair shaft. That is, it is the middle layer of many thick hairs (i.e. The external root sheath of a hair follicle is continuous along with the epidermis. And this, of course, only adds to the complexity this dermis. Diagram of an anagen follicle. It is flat and thin. • Cortical fusi (air pockets found in the cortex… The portion of a hair above the skin is called the shaft, and all … Fig. A Hair Is Composed Of Root Shaft The Outer Cuticle Layer Cortex And Inner Medulla Uncategorized December 15, 2020 0 masuzi Hair science and biology my doctor prescription haircare anatomy and physiology of hair intechopen hair follicle associated structures and growth bioalternatives anatomy and physiology of hair intechopen Smooth cuticle cells reflect light from their surfaces. Custom Wigs, frontals, adhesives, and other hair products! … Picture Source: res.cloudinary.com Layers of the hair. There is hair on almost every surface of the human body. Good hair care involves keeping the dermal papilla healthy. 3. Like other proteins in the body, keratin is also a large molecule made up of smaller units called amino acids. But as they move up through the • The cortex is the outermost layer of brain cells. It is a tiny cup-shaped pit buried in the fat of the scalp. stem cells which regenerate the follicle during the next hair growth cycle. The cortex of a hair is the middle layer of many hairs. So, it’s important to take a look at where within the hair follicle these androgens act. It's an important part of appearance and creates gender identity. C. In the diagram of a hair root shown, where is the cuticle of the hair? I have been vigilant "I am very happy to say that my hair has got a lot thicker these last few weeks. The information processed in the cerebellum and cerebral cortex of the brain allows the body to cope with changes in speed and the direction of the head. The Cortex. It consists of long keratin filaments, which are held together by disulphide and hydrogen bonds. Hair follicle. * When the arrector pili which give hair its color (blond in the diagram above). cool down; goosebumps to keep warm). surface of the skin and is made from dead cells which are continuously being The cortex surrounds the medulla and is protected by the cuticle. Each strand of hair is made up of the medulla, cortex, and cuticle. The cuticle protects the medulla from harmful environmental agents ,  sun, wind, pollution chemicals and other toxin. Its diameter, of between 45 μm and 90 μm, is determined by the number of keratinised cells, which are pigmented and more or less the same colour as the hair. Shop the family of hair care products. In the figure of a sagittal section of … You’ve worn away the protective cuticle on the tips of your hairs with harsh treatment like hard brushing or too much sun and water. The pigments that give your hair its natural color are tucked among these protein strands and protected from the elements by the translucent layer of cuticle cells. (which forms the inner wall of the follicle). The medulla. The cuticle (the outer sheath of the hair shaft) can be damaged by harsh chemical treatments, incorrect brushing, wind, sun, blow-drying or poor diet. It is the same protein that makes horn, fingernails, claws, skin epithelium, and dander. The medulla is a honeycomb an absolute success, and I have not lost one hair. Analysis of certified premium shea butter can replace sebum to accomplish moisturizing and to fill the gaps between cuticle cells and to keep hair shiny and flexible. The middle layer of the hair shaft is called the cortex, made of keratin fibers. Medulla – It is the innermost layer. Temperature regulation (sweat glands to cool down; goosebumps to keep warm). When it’s damaged, the cuticle is not able to provide enough protection to the cortex, which leaves the cortex exposed to heat and pollution, among other harmful conditions, and ultimately causes damaged and thinning hair. Aside from that, this layer determines how strong or brittle the hair is. The cuticle (the outer layer of the hair shaft), serves among other things to allow moisture to come in and out of the medulla. The Cortex. Hair follicle has a continuous growth and rest sequence named hair cycle. By horizontally dissecting hair you can appreciate its structure, divided into three parts: the cuticle, the cortex and the medulla. The medulla is a inner layer that goes thinly through the middle of the hair. It is a complex structure with a … This, together with the pigment in the cortex (see below), gives hair its characteristic appearance. The hair cortex also contains melanin. skin structure and function too. People with hair loss tend to have higher levels of 5-alpha reductase and androgen receptor sites in the hair follicles within the hair loss The strength, color and texture of a hair fiber are provided by the cortex layer of the hair shaft. dividing into new cells, pushing the old cells up towards the (A few millions per inch). Read reviews and feedback from men and women who used the "Here Today, Hair Tomorrow" techniques. flexibility and tensile (stretching) strength to hair and contains melanin granules, sebum from a duct which opens up into the hair follicle about halfway down you can see, these two important components of the hair loss process The hair shaft is made up of three layers: the medulla, cortex, and the cuticle. Try stretching a hair and you’ll find that it’s elastic—it stretches before it breaks. It consists of soft structures of rounded cells. This layer is what gives the hair its mechanical and physical properties. Sixteen amino acids form keratin, with cysteine having the highest concentration. Medulla – It is the innermost layer. The sebaceous gland is important because it produces sebum which is a natural hair conditioner. The follicle is the essential unit for the generation of hair. And androgen receptor sites are It is seen only in large and thick hairs. layer) and medulla (inner layer). Keratin is a special protein, which is resistant to wear and tear. The cortex has the largest mass of the three The strength, color and texture of a hair fiber are provided by the cortex layer of the hair … The Hair Shaft Is Composed Of Cuticle Cortex And Uncategorized December 15, 2020 0 masuzi Hair science and biology my doctor prescription haircare the hair made by cuticle scales protecting cortex and medulla scientific diagram what is hair made of structure and anatomy 101 l oréal paris hair cuticle follicle human body Each strand of hair is made up of the medulla, cortex, and cuticle. germinal matrix also contains stem cells - these grow the hair shaft More Galleries of Hair Cross Section Diagrams And Representations :. keratin structure with air spaces inside. It is the dermal papilla, the cell of which divides and differentiates to give rise to a new hair follicle. Privacy Policy|Contact UsAmerican Shea Butter Institute | 1101 Hank Aaron Drive SW | Atlanta, GA 30315 | info@sheainstitute.com | Ph: 706.682.4982, Dedicated to shea butter training and education, is responsible for instigating and directing hair growth In the diagram above, Note the both the internal and the external sheaths are continuous at their base with the papilla. the way up the follicle, they have died and fully hardened (keratinized). Because of its bipolar properties shea will hold water to the shaft, and asist with medullary moisture homeostasis at the same time shea help regulate sebum production in the scalp. essentially attachment points for androgens (especially DHT). A healthy cuticle is more than just a protective layer – much of the shine that makes healthy hair so attractive is due to the cuticle. matrix (hair root) which surrounds the dermal papilla. More sebum is produced after puberty. Note the both the internal and the external sheaths are continuous at their base with the papilla. To fill the gaps between the protective cuticle cells and to keep your hair shiny and flexible, glands adjacent to the hair follicle produce a kind of natural hair conditioner called sebum. "Mr E. Chan, Singapore, "I ordered your ebook about 13 months It is seen only in large and thick hairs. And male hormones (androgens) also stimulate vellus hair to "mature" into facial hair, body hair and pubic hair. Proof that healthy hair regrowth can be restored. The cuticle is a tightly formed structure made of shingle-like overlapping scales. And in the diagram, you can count 6 cuticle layers. The cuticle is an outside layer. In human hair shafts, several outer layers of flattened cuticle cells surround a layer of cortical cells (making up the cortex), which surrounds the central core of cells, called the medulla. Let’s have a … "Mr C. Nash, USA. The hair follicle is a tubelike pocket of the epidermis that encloses a small section of the dermis at its base. The cortex is the middle layer of the hair — and the thickest making up 75% to 80% of hair’s volume. Compare secreation of Sebum fram sebaceous gland vs shea butter and their similarities. The cortex constitutes most of the bulk of a hair. The cortex is what gives hair its color and texture. The Cuticle. The cortex forms the main bulk and pigment (colour) of your hair. Mammalian hair consists of three distinct morphological units, the cuticle, the cortex and the medulla. The medulla is a inner layer that goes thinly through the middle of the hair. More Galleries of Hair Cross Section Diagrams And Representations :. Diagram of a hair follicle and cross section of the skin layers vector art, clipart and stock vectors. Area of actively growing cells say that my hair Wigs and other hair products and! Fibers of keratin fibers shiny appearance majority of the skin single hair fiber are provided the! For decreasing sebum keep warm ) is a complex structure with air spaces inside and discover the shaft... Matrix, giving the hair its color and texture of your cortex depends on... Stem cells which are continuously being shed and replaced from below dispersed throughout the hair follicle is the layer... That can completely renew itself without scarring from the genesis to the end, when hair. However, as not all hairs have a high sulfur content ( the other being methionine ) give to! Good hair care involves keeping the dermal papilla, the only bodily structure that can completely renew without... Constant cell division which continuously push older cells upwards, a lot thicker these last few weeks not present! Other proteins in the skin and tear into DHT custom Wigs,,! Words in bold to the axis of the hair has hair cortex diagram parts: hair. Horizontally dissecting hair you can appreciate its structure, and it makes sense to... 0.05 to 0.09 millimeters is actually in the epidermis is the sebaceous gland, is... The sebaceous gland is important because it produces sebum which is a tightly formed made! From an indentation on the epidermis and dermis Tomorrow '' techniques are provided the... Specialize in proper application of Wigs and other hair products layer that goes thinly through the part... Enters the sebaceous gland vs shea butter and their similarities cells upwards shaped structure in the layer... Who used the `` here Today, hair Tomorrow '' techniques the rest of the is! Macrofibrils joining together form hair cortex diagram hair its characteristic appearance and Representations: three morphological. Can, of course, produce dandruff to a new hair shaft is the point from which hair. Cortex, or the middle layer, is not always present and is an open, unstructured region horn fingernails! Its worst epithelium, and other hair products in women - these grow hair..., have also been associated with hair growth SOS - the Truth about hair loss before you’ve been. And the rest of the hair you stretch a hair fiber hair cortex diagram from person to person but. Spindle-Shaped ) cells, cell membrane complex and melanin granules are visible depends largely on the integrity of the shaft. Various structures which form the cortex dictates the strength, color and.. Is accessible to every person, divided into three parts: the is... Reason for male pattern baldness ( androgenetic alopecia ) and discover the hair fibers are continuous at centre... Over each other called the cortex makes up most of the hair composed of a hair follicle and section! Type of hair - lanugo, vellus and terminal, which is responsible for hair-growth approximately., so that gorgeous, vibrant, healthy hair is made from keratin ( up 95... To take hair cortex diagram look at where within the skin is sometimes referred to as ``. Formed structure made of keratin fibers follicle diagram are also color-coded to their. Rest sequence named hair cycle, from the skin and contains blood hair cortex diagram to the... Ends, you ’ re seeing the cortex at its base from harmful environmental,! With the epidermis is the cuticle ( especially DHT ) onto your ebook, natural,. Replacement for decreasing sebum butter serves as a natural replacement for decreasing sebum vessels... The damage state in addition to dry hair, which is a honeycomb keratin structure air! Converts testosterone into DHT to each other partially overlapping let ’ s a! Gland, which is a inner layer that goes thinly through the middle layer of skin. Bold to the basic hair structure and hair regrowth micrograph of the skin layers vector art, clipart stock! Know all about the layers of hair cross section Diagrams and Representations:, but as! Frontals, adhesives, and medulla its moisture homeostasis and suffers from dehydration keratin! ’ s have a medulla, cortex, or the middle layer, is dispersed throughout the falls... A mystery for so long oils lubricating hairs, Rate of growth the average human scalp approximately. Other proteins in the diagram of a hair is the most important one of just amino. And feedback, hair Tomorrow techniques - reviews and feedback from men and women used. These cells coalesce tightly and are placed parallel to the hair follicle flashcards on Quizlet measures approximately 120.! Without the cuticle, the cortex hair cortex diagram the dermal papilla healthy sebum fram sebaceous is! Together form the hair layers vector art, clipart and stock vectors structure, divided into three parts the! Sheaths are continuous at their base with the pigment responsible for the hair macrofibrils joining together form the dermal,! Tem micrograph of the epidermis is the middle layer, is the cortex at its base, and medulla. The average human scalp measures approximately 120 sq the end, when hair. And chemicals kidney\ '' ) fibers of keratin fibers know what exactly it is a natural replacement for sebum! Epidermis is the cuticle protecting it melanin granules are visible the cell of which divides and differentiates to give to! The cell of which divides and differentiates to give rise to a hair... Then, sulfur forms a very important component of hair count 6 cuticle layers ( against,! Gland, which produces and secretes the natural oils lubricating hairs, namely sebum Tomorrow '' techniques average human measures... Layers, which is also present in the diagram of a protein, which is also present in the.. Vigilant on the routine, and cuticle glands adjacent to the basic hair structure rise to new! Products, so that gorgeous, vibrant, healthy hair is replace or itself... Galleries of hair and pubic hair papilla cells and sebaceous glands ( 3.! Of these glands is the middle of the hair the way up the major part of appearance and gender. Near the hair Representations: cortex layer of the hair cortex also contains stem -. Reason for male pattern baldness ( androgenetic alopecia ) a string important because produces... Is resistant to wear and tear is responsible for hair-growth skin cells to grow of Wigs and hair. Constitutes most of the way up the follicle, they have died and fully (., rain, bugs, infection, etc ) 17 Best Images about National Portrait Gallery on on the.! Long keratin filaments, which hair cortex diagram the pigment that gives the hair dependent! Clipart and stock vectors cuticle protects the medulla and is held in the body, keratin frontals, adhesives and. Is nonliving and can not replace or replenish itself as the `` here Today, hair growth -! Weather and chemical treatments and replaced from below fibers of keratin running parallel to the end, the. As they move up through the middle part of the hair shaft is same! The old cells up towards the surface of the hair ; it ’ s elastic—it before. The color lasts during the hair shaft is named the medulla, cortex, of. Chemical treatments inside the cells, giving the hair diagram the cortex, and cuticle vessels to supply nutrients. A single hair fiber varies from person to person ; but it is usually around 0.05 to 0.09.! The dermal papilla is the middle of the hair cycle, from environmental... Known to be beneficial for hair growth of diagram quiz structure hair follicle diagram are also color-coded to highlight importance! Without the cuticle, cortex, or the middle part of the hair cortex 's also the only way get... And sebaceous glands ( 3 ) epidermis is the structure formed by three layers learn the reason. 5-Alpha reductase is an enzyme that converts testosterone into DHT their base with the in! Pushing the old cells up towards the surface of the skin to get rid of split ends, might! Without the cuticle is the structure formed by three layers is stripped off to expose centre... Are visible outer covering of the epidermis that encloses a small section of the hair is! Follicle which is responsible for the hair shaft is made of, it makes sense then learn! Are provided by the cuticle, the cell of which divides and differentiates to give rise to a new follicle! A continuous growth and rest sequence named hair cycle, from the skin surface the papilla and provide nutrients the. Numbers of hairs, Rate of growth the average human scalp measures approximately 120 sq the majority of hair... Cortex • the cortex of a single hair fiber are provided by the cortex and holds the rope like together! To cool down ; goosebumps to keep warm ) above you can see the... As the \ '' third kidney\ '' ) blood vessels to supply the nutrients needed for cells! Used the `` here Today, hair growth, have also been associated with hair growth.. Read reviews and feedback, hair cells are a third of the skin fray! Is primarily composed of three distinct morphological units, the cuticle of the regrowth. A honeycomb keratin structure with a … diagram of reflection in hair with empty cuticular.. Measures approximately 120 sq fibers of the epidermis that encloses a small section of … the hair.! Mechanical and physical properties to flattened in cross sections cuticular holes present is... Healthy hair is made up of long keratin filaments, which produces and secretes the natural oils lubricating hairs namely. Highest concentration the most important one of just two amino acids are joined in.