The following factors often lead to hair damage: chemicals, chlorine, sunlight, extreme temperatures (hot or cold), bleach, improper combing, hot hair dryers or curling irons. Damaged hair often becomes brittle and coarse, making hair care difficult.

Some specially-made shampoos contain added proteins and humectants, these products can be used to repair damaged hair. Be sure to use a hair conditioner to moisturize the hair, as this can prevent hair dryness.

Adjust your diet, add more proteins. Protein can help to repair the damaged cuticles and promote the hair growth. Lean meat, fish (particularly salmon), etc., often contain abundant protein.