Tea Tree Therapy Shampoo with Tea Tree Oil has natural herbal extracts. Arnica, Rosemary, and Sage that gently and completely remove build-up from hair and adds moisture to nourish, calm, and soothe dry flaking scalp. It provides gentle cleansing for all hair types and leaves no chemical residue. A PH of 5.5 matches the acid mantle of the scalp and allows the naturally derived cleansers to work at their best. No Sodium Lauryl Sulfate.