After i straighten my hair & go to school, the tips of my hair curl. How can i keep them straigh

you can't'

its the humidity...i have a double dose of curly hair.

and so does my daughter...she is 9 and its the "cool" thing now at school....i cant straighten for 3 hrs a day...and her walk outside and it curl right back up.

its not gonna stay striaght

but you can buy a perm for a black persons hair...and it will straighten it better than using a straight iron

After i straighten my hair %26amp; go to school, the tips of my hair curl. How can i keep them straight?

you can though what i suggest trying is count to 10 not to fast not to slow and then remove and wait 5 sec then do it again then leave...i straighten my hair if this does not work its to humid...were i live its never humid

After i straighten my hair %26amp; go to school, the tips of my hair curl. How can i keep them straight?

try Paul Mitchell's Super Skinny Serum... I love the stuff, leaves hair silky and if your like me stick straight, style anyway you want with your flaty iron... also I use a titanium flat iron, I like it way better than ceramic.

After i straighten my hair %26amp; go to school, the tips of my hair curl. How can i keep them straight?

use anti humdity kit

try fructis shampoo_conditioner-mask for anti humid

After i straighten my hair %26amp; go to school, the tips of my hair curl. How can i keep them straight?

that happens to me alot of times what causes it is the mosture in the air to prevent it at night when you finish flat ironing your hair you have to wrap it and once you do that ot won't get curly at the end or even or whole hair hope it works for you