Hair Foundation
HAIR CARE & BEAUTY » Hair Shaft & Follicle Conditions
Split Ends

Over the 2 to 8 years of its existence, a hair shaft is likely to suffer damage from even normal activities of combing and brushing, wetting and drying, coloring and styling, but this does not usually cause severe hair damage. Long-term physical and/or chemical stresses can result in chronic problems of hair styling and management: hair breakage, hair "frizz", and broken or "paint-brush" hair tips.

Avoiding excessive physical and chemical stresses usually can prevent severe physical and/or chemical damage. Severe damage to the hair shaft cannot be undone; however, cessation of stresses can prevent further damage.

See:
Healthy Hair: How to Keep It Healthy and Looking Good