16 inches of curly honey blonde hair

This hair belongs to my 15 year old daughter. She washes her hair every other day and never blows it dry. She usually braids it and allows it to air dry. She occasionally uses a straightening iron to straighten it, but not more than once a week. There have been no chemical treatments done at any point.
Medications Rachel takes:
Allegra daily for environmental allergies, ibuprofen or excedrin occasionally, low estrogen birth control daily.
Rachel comes from a smoke free home and does not smoke or drink alcohol.