The average is 1/2 inch a month, though some freak of nature have 1 inch a month (very rare).
What makes the most difference in your hair getting long is not how fast they grow, but
how fast they break down or detach from the cranium.
When hair is weakened by DHT, its cycle becomes shorter and it falls out before reaching
full length. many men cannot grow long hair with a decent thickness since the longer it
is the less hair of that length exist (since its fallen out)
Another problem is hair as it get damaged by the environment either snaps off
of splits. Many people who have trouble growing long hair have this problem.
Of course, the original hair has to be in good shape. But, unless you've got
a metabolic disease, just eating enough proteins is usually enough.
For the long hair crowd, pampering the hair by insuring the environment
won't damage them is kind of a religion. Heat styling of any kind and
chemicals like dyes are the biggest damagers of hair. Do it as little
as possible. Back brushing (teasing), and excessive pulling, brushing
and washing is not good (but nowhere as bad as heat and chemicals.
Some styling products are also not that great for long term ideal
hair health (though that depends on the hair).
Insuring constant hydration with deep moisterisers once a week is
crucial. Closing the cuticles with cold water and air dryer (on low setting,
cold) will insure the inside of the hair cannot be attacked by environmental
pollution (it will also make it look a lot shinier). Many styling produc
Bigger hair will resist to more abuse obviously than finer hair. So,
asian hair will remain shiny and healthy even when long when
a redhead may get frizzed out and damaged before it gets
even half as long.