Understanding hair growth is key to optimising hair growth and minimising hair shedding.
How Does Hair Grow?
To understand how hair grows, we first need to look at its parts. Hair is made up of two parts: the root and the shaft.
The hair shaft is the visible part exposed at the skin’s surface and composed of hard keratin protein. The hair root below is anchored to a pocket of invaginated basal skin (follicle) and contains a ‘bulb’ where the hairs’ cells actively divide. The shaft is dead tissue, while the root is living (which is why it doesn’t hurt when you cut your hair but it hurts when you pull out a hair strand!)
Cycle of Hair growth
Hair growth is cyclical. Each individual hair goes through various phases of this cycle, independent of the surrounding hair. At any given time, each strand is in a different part of the cycle. (It’s a good thing that each of our hair’s cycles are not in sync, otherwise we would shed all of our hair at once!)
Click on each phase to learn more.
The hair bulb remains intact all this while, and when the telogen hair sheds a new hair emerges. As new hair is manufactured in the follicle, it pushes out the hair shaft, creating longer hair. Hair grows about 0.3mm to 0.4mm each day, which adds up to around six inches per year.
What if most hair are in the shedding phase?
Why does hair length vary for different people & different body sites for the same person?
Is some amount of hair fall normal?
Though some amount of hair fall daily is normal, excessive shedding can come in many forms and have many causes. Keep reading to learn more!
Till then, Glow & Grow! 🙂