The stimulating organic tea tree oil included in this shampoo strengthens the scalp and hair. Tea tree contains natural antiseptic properties that nourish and restore dry, damaged hair, promoting healthy growth and enhancing shine. The shampoo fortifies the scalp, combats dryness and itching. Tea tree oil has a toning effect, eliminating impurities and restoring the health of the scalp. All Petal Fresh product formulas are safe, free from sulfates, GMOs, petrochemicals, phthalates, parabens, and preservatives. They all have a balanced pH level, are not tested on animals, and are suitable for vegetarians.