Your hair has either been over processed with chemicals or has mechanical damage due to excess heat or poor hair care. Unfortunately if the damage is really bad it may be irreversible. Luckily there are many cutting edge products on the market now that can help damaged hair. PH bonder by Redken or Olaplex can be used as an in-salon treatment. Ask your stylist if he or she can use this treatment in your hair one to two times a month, depending on how bad the damage is, to begin to heal the hair and make it stronger. Be sure to follow with the correct home care steps in order to achieve the max benefit.