Washing and conditioning it and moisturising it
You can eat Cat Nip or put Bosley on it
It is natural for hair to grow :)
A year for thin hair, or three years for thick hair, five years for frizzy hair.
1 year
About 10cm in a year, for thick hair, and for thinner hair it ranges from 6cm-9cm
I would say a perm if you have thin hair. but if you have thick hair, straighten it.
all girls grow at different rates but the average girl might grow about 2-3 inches per year.
No,I would not say it's healthy for a 12 year old.
i believe a year or so
On your head, the average person grows about 12cm of hair in a year.
It grows about 15cm a year if you don't cut it.