Shampooing too often causes dry hair. Although squeaky-clean hair is a good thing, many overdo it by washing once, sometimes twice, per day. That will strip away all of the hair’s natural oils.
How to fix it: A gentle shampoo will stimulate the oil glands. You’re safe washing your hair about every three days using an acidic shampoo with a pH between 5 and 6. Also, try an overnight moisturizing conditioner and a hot oil treatment to battle dry hair.