IT IS THE POOL! Your hair is made up of a delicate, stretchy strand called the cortex. The cortex is wrapped in a sturdy sheath called the cuticle made up of keratin, which is designed to protect and keep it from breaking. The entire hair strand is coated in sebum, a natural oil produced by your scalp. Sebum smooths the cuticle, keeping it shiny and strong. Chlorine is a harsh chemical that strips away the sebum, leaving your cuticle dry and cracked, with split ends.
Always wear a cap when swimming and a nice way to help restore your hair is keratin treatment