What Causes Split Ends? Before we get into what causes them, let’s answer a more important question – what are split ends? Your hair strands begin to develop split ends when the hair cuticle (outer protective sheath) gets damaged and begins to wear off. This leads to the delicate inner layer of your hair getting exposed and weakened or dehydrated, which, in turn, causes split ends (1).
Detangling your hair aggressively when it is dry (1) Detangling your hair when it is wet (1) Sun damage caused by stepping out in the sun without covering your hair (1) Using heat styling tools like straightening irons, curling wands, and blow dryers excessively (1) Not trimming your hair regularly Not conditioning your hair regularly Washing your hair daily (1) Undergoing chemical treatments like hair color, relaxers, and perms (1) Using too many styling products like gels, mousses, waxes, hair sprays, etc....