What commonly causes split ends?

Split ends, also known as trichoptilosis, occur when the protective outer layer of the hair cuticle wears away, leading to fraying and splitting at the tips. The primary cause of this condition is exposure to damaging factors, such as chemical treatments—like coloring, perming, or relaxing—and heat damage from tools like blow dryers, curling irons, and flat irons. These practices can weaken the hair structure, causing it to become brittle and more prone to breaking.

While regular haircuts can help manage split ends by removing damaged sections, and using high-quality hair products can protect and nourish the hair, the most significant direct contributors to split ends are the chemical processes and excessive heat styling that compromise the hair’s integrity. Improper washing techniques may contribute to overall hair health, but they are not the leading cause of split ends compared to the impact of chemical and heat damage. Understanding the importance of hair care practices, including minimizing exposure to harsh treatments and excessive heat, is vital for maintaining healthy hair and preventing split ends.