The therapeutic aroma of Rosemary & Lavender Leave-In Herbal Tea Rinse stimulates hair to grow at a faster and thicker rate. Rosemary stimulates the scalp, which helps promote growth and slows premature graying. The antioxidants present in Rosemary prevent hair breakage while restoring strength, continued use will add strength to the hair follicles. Rosemary & Lavender Leave-In Herbal Tea Rinse can be used daily because it's water-based.