HAIR is a non-living body structure composed primarily of a protein called KERATIN that is produced by organs within the skin called HAIR FOLLICLES.????️

It is also a protein filament that grows from hair follicles found in the DERMIS.

(Okay too much grammer right ????,I'm not teaching biology but they are important to know so we'll learn from scratch and won't get confused???? ????)

PARTS OF HAIR

A). HAIR SHAFT: the part of the hair follicle that fully exits the surface of the skin. It consists of the cuticle,cortex and medulla. The CUTICLE is the hair's outer protective layer and how it lays determines what your porosity is. Followed by the CORTEX which is responsible for giving hair it's strength and durability and it determines the colour of hair because it contains melanin. Lastly is MEDULLA which is the innermost region of the hair shaft and is not always present.

B). HAIR ROOT: the part of hair embedded in the hair follicle. It has a whitish colour and can be seen when hair sheds anywhere in the body.

C). HAIR FOLLICLE: the part where hair grows from.

????Are we following ????...( who's making noise at the back????)

D). DERMAL PAPILLA: the part that contains arteries which supplies blood that regenerates the hair follicle and nourishes the hair.

E). SEBACEOUS GLANDS: small oil-producing glands connected to the hair follicle that secretes an oily or waxy substance called SEBUM which lubricates the hair and skin.

F). ARRECTOR PILI: a tiny muscle connected to each hair follicle and the skin. When it contracts,it causes the hair to stand erect and a "goosebump" forms on the skin.

So that's all for today's class????????...hope we all learnt something????(tell me what you learnt in the comments section below and contribute)

Will continue tomorrow,do well to share this post with family, friends even your enemies ???? so we'll all learn together.

We discussed about hair type and how they can be classified by curl pattern(check last post), hair strand thickness(hair width) and volume(hair density).

????HAIR WIDTH is the measure of thickness or circumference of the individual hair strands. It simply is the width of each strand of hair on your head. It is categorized into 3: fine, medium and coarse.

????Its important not to confuse the word "coarse" with the way hair feels).

FINE HAIR: they have small width and when held up to light appears thin and barely there. These strands tend to be weak and easily damaged ????️

MEDIUM HAIR: Have a circumference between that of fine and coarse strands.

COARSE HAIR: Have the largest circumference, width and the most strength. When held up to light, the strands are very visible and when pulled on do not snap easily.

????Hair width is so important when discussing our hair because it plays a major role in determining the strength of it, its susceptibility to damage and therefore your ability to retain length.

????HOW TO MEASURE -- THE THREAD METHOD

A). To begin, gather shed hair from comb or brush to examine.

B). Take a strand of thread

( You can tape A and B on a piece of white paper ensuring that they are pulled taut)

C). Once done, you compare your hair strands to the strand of thread.

RESULTS ????

If hair is thinner than the thread= fine hair

If hair is around the same thickness= medium hair

If hair is thicker than the thread = coarse hair.

Hmm we're getting somewhere ????...so with all this, what's your hair width?????

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