Beauty And The Bath

Hair Removal Biology

hair removal

Most people do not give much thought to their hair past the point of making sure that it looks good. However, many would be surprised to know that hair is actually rather multifaceted.

The formation of hair begins when a child is still developing inside of its mother. In fact, by the period of 22 weeks gestation, the growing fetus typically has around 5 million follicles of hair on its tiny body.

Another interesting fact about hair is that it does not matter how long one lives, no additional ones will develop. A strand of hair is made up of the follicle, which is rooted in the skin. It also has a shaft, which is what we see outside of the skin and on our bodies.

The hair follicle has many layers, each of which has a precise purpose. It is the papilla that lies at the bottom of the follicle while the capillaries are joined to the papilla. Capillaries work to provide blood to the surrounding cells at the bottom of the hair strand that are known as the bulb.

The inner sheath and the outer sheath are what surrounds the follicle and their job is to thwart damage from happening to the hair shaft as well as aiding it to grow in the right direction It is the outer sheath that runs to the gland and ends at the muscle known as the erector pili that causes your hair to feel as if it is standing on end when it contracts.

The inner sheath on the other hand runs along the hair shaft and ends at the oil or the sebaceous gland. The shaft of the hair is made of three layers made of dead protein cells known as keratin. The deepest layer, the medulla is actually not always in every hair shaft. The cortex is the next layer and it makes up the biggest portion of the hair shaft.

The color of your hair is caused by the pigmentation within the cortex. A series of overlapping cells make up the cuticle, which is the outmost layer. The amount of shine your hair has is determined by the cuticle. The hair on your scalp typically grows at about six inches or so per year and there are three individual stages of hair growth.
Hair Removal Biology
The Catagen Phase is known to be transitional. Typically about three percent of the hair on your head will always be in this phase. During this time, there is no hair growth as the outer portion of the hair root sheath is reducing and needs to adhere to the root.
Also at any given time around fifteen percent of your hair will be in the Telogen Phase where it rests. This lasts approximately a hundred days for the hair on your head and even longer for hair on other areas of your body.
When hair cells are separating and new growth is happening, your hair is in the Anagen Phase. This phase can extend all the way from two or even six years. Some people who seem unable to grow long locks typically have short periods of this phase.
Two different hair disorders to do with growth affect people. The first is Hirsutism and disorder that typically is found in women. This condition finds females with a lot of course, dark hair on body areas that are usually only hairy on males. Such locations include the face, chest and around the nipples.
Hypertrichosis is the other condition and causes extra growth of hair on the body, where hair growth is typically not seen. The good news is that anyone suffering from these disorders can be treated.

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Hair Removal Biology

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