Human hair is made up of two main structural parts: the living part and the non-living part. The living part is the hair root, embedded in the hair follicle, which is responsible for producing hair cells. The non-living part is what we see above the scalp — the hair shaft — composed mainly of protein, which grows from the hair root. The hair root is what controls hair fall and regrowth, and hair naturally grows and sheds in a daily cycle that can be divided into 3 phases:
1. Anagen (growth phase)
Approximately 85–90% of all hair on the scalp is in the anagen phase at any given time. During this phase, the hair follicle produces hair cells, causing the hair to grow longer over a period of approximately 3–7 years, before entering the catagen phase when growth stops. The longer the anagen phase lasts, the more hair the follicle can produce — resulting in long, thick hair. If this phase shortens, hair enters the resting phase more quickly, meaning hair falls out faster, and newly grown hair is short, thin, and weak, eventually leading to premature hair loss.
2. Catagen (transition phase)
A brief period during which the hair root tip moves toward the surface of the skin. Hair growth slows and gradually stops. Hair in this phase accounts for about 1% of all hair on the scalp, and each strand stays in this phase for approximately 2–3 weeks before entering the resting phase.
3. Telogen (resting / final phase)
The hair root in this phase is no longer alive. The hair strand moves and embeds near the skin surface, waiting to fall out, while a new hair beginning anagen pushes the old, dead hair out. Normally, around 70–100 hairs fall out per day. Approximately 10–15% of all hair on the scalp is in this phase at any time, and each strand remains in this phase for about 2–3 months.
Hair growth and shedding occur every day. As we age, new hair becomes thinner and shorter-lived, and falls out more than usual — this is the beginning of thinning hair that can lead to baldness.
Therefore, we should always keep our hair healthy by using products that nourish the scalp and extend the anagen phase, so that hair follicles can produce hair for longer — resulting in more hair, slower shedding, and a delay in the onset of baldness.
For those who aren't sure how to start caring for their scalp, AloEx recommends shampoos and hair serums formulated with natural extracts, focusing on extending the anagen phase so hair follicles can produce hair for longer, stimulating blood circulation in the scalp — helping hair grow thicker and reduce hair fall noticeably.
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