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Understand the Hair Growth Cycle

How Does Hair Grow?

Hair is made up of 2 parts: the follicle and the shaft.

The follicle anchors the hair into the scalp and is made up of the papilla and bulb, which are located beneath the scalp.

The shaft is the part of your hair that can be seen above your scalp. It’s made of protein called keratin compacted and fused together. Keratin is the same material that nails, hoofs, feathers and claws are composed of. Keratin is a remarkably strong protein, very resistant to wear and tear. It is held together by two kinds of bonds: disulphide bonds and hydrogen bonds.

The Hair Growth Cycle

It is normal to lose up to 100 hairs and grows about 0.3mm to 0.4mm a day, which adds up to around six inches per year. Every hair is at a different stage.

There are 3 stages of hair growth in the cycle: anagen, categen, telogen. At some point, the follicle will begin to grow again, softening the anchor point of the shaft initially, the hair base will break free from the root, and the hair will be shed.


Anagen (growth phase) is the active phase of the hair. During the anagen phase, cells of the bulb divide rapidly,

Most hair is growing at any given time, and each hair spends 2-8years in this phase.


Catagen (transitional phase) is a transitional stage and about 3 % of all hairs are in this phase at any time. Hair growth slows and the hair follicle shrinks.


During the Telogen (resting phase), the follicle remains dormant for 1 to 4 months. 10-15% of the hair on one’s head are in this phase of growth at any time, and as much as 50-100 hairs can be shed during this time.

While the old hair is resting, the new hair begins and goes back the growth phase.

hair growth cycle

Hair Loss & Hair Growth Cycle

Hair shedding is a natural and necessary part of the hair growth cycle, but excessive hair shedding can occur for a variety of reasons (for example: Alopecai areata). When these hairs fall out, hair appears thin. Hair growth cycle will be interfered and hair follicles in anagen phase are prematurely entered to telogen phase. There are other hair loss types: traction alopecia (adding too much strain on the hair on your head); telegen effluvium (70 % of the anagen hairs is precipitated into telogen, which is unusual ratio) and so on.

For more information of hair loss, check out why is your hair falling down.


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For optimum hair growth, hair needs to stay in anagen phase for long as possible. Beautiful hair is supported by healthy diet, regular lifestyle, avoiding unnecessary damage. A best way to regrow your hair is through the use of InStyle-Egg® Laser Cap, which is laser device with LLLT (Low-Level Laser Therapy) to stimulate hair follicles (make the hair in telogen phase to anagen phase), deliver energy and rejuvenate the deepest layer of the scalp.

InStyle-Egg® has FDA Clearance for being a safe and effective way to prevent hair loss and promote new hair growth. Laser therapy is not only one purpose for recovering and reversing thinning hair, but also strengthening hair quality, improving the weak hair that’s close to falling.

Many factors can disrupt the hair growth cycle and cause temporary hair loss, include: hormonal imbalances, skin diseases, medication, stress, and so on. It’s important to ensure that your hair is growing longer healthy and falling out normally. InStyle-Egg®  has three types: 80 didoes/ 272 diodes/ 280 diodes, and all are FDA-Cleared, clinically proved for hair regrowth treatment. Get InStyle-Egg® & Help your scalp regrow its own natural hair now!

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