How old do you have to be to get a hairline lowering? I’m 17, going on 18 on January

You did not state if you are male or female, and
that is important. Forehead reduction surgery comes in two types, the
first is a surgical procedure that gives you same day results, the second is a
hair transplant that takes 6-7 months to see. For men, my only concern is in
the potential balding that may occur as most balding starts about your age and
advances until the mid-thirties. If that happened to you (your risk) then you
will have to get a hair transplant to cover it as the frontal area is the place
that genetic balding starts in the young man. On my website, there are great
pictures of hair transplant lowering procedures in women on our Home Page and
in our gallery on our website (see below), you can see hundreds of men who had
their hairline replaced, lowered or improved.  

I have done this operation on females as young as 16 with parental consent. If you are male you should not be considering this type of surgery under most circumstances.