The scourge of the hair world which if left to get out of control can lead to a rather tragic haircut and possibly a permanant loss of hair. Split ends as you know are litterally splits on the end of your hairs caused by lack of nutrients, dryness, heat from a dryer and general machanical damage. These splits if left will either split further until the hair breaks leaving it thin and flimsy or it will continue to seperate all the way down to the follicle essentailly ruining your hair. The best cure for these is prevention but second is just trimming off a very small amount thats just enough to cut off thee splits. Prevention can be keeping your hair moisturised and maintaining a good diet rich in protein. Don't bother with shampoo's that claim to cure splits because all they do is seal the ends only for them to open again and become a problem later, not forgetting the harfu;ll chemicals your putting in your hair too.