NOW Foods Organic Tea Tree Oil is steam-distilled from certified organic Melaleuca alternifolia leaves, providing all the antimicrobial and therapeutic benefits of tea tree oil with the additional assurance of certified organic cultivation — meaning no synthetic pesticides, herbicides, or chemical fertilizers in the growing or harvesting process. This is the premium choice for those who want their essential oils to be as clean and pure as possible. GC/MS tested to verify the correct terpene composition, including terpinen-4-ol content and cineole limits that define therapeutic-grade tea tree oil. Ideal for natural first aid, skin care formulations, hair care, and household applications. Always dilute in a carrier oil before topical use. Certified organic and suitable for use in natural product formulations requiring organic ingredients.