How can you grow your hair instantly?

Answer 1

Unfortunately, your hair won't grow back to the same length you had it before it was but instantly, it will take at least three weeks. One way of helping your hair grow back though is to keep it clean, fresh and get rid of any grease.

The greasier and the dirtier your hair is, the more it cloggs up the roots, so it's less likely to produce more hair on your head.