Mentha piperita Ingredients: 100% pure peppermint oil Aroma: Fresh, strong mint Attributes: Revitalizing, invigorating, cooling Energizing Blend: Add 1 drop each of peppermint oil and rosemary oil along with 2 drops of cinnamon oil to a diffuser and enjoy. Extraction Method: Steam Distilled from aerial parts. Physical Characteristics:Specific Gravity: 0.896-0.908Refractive Index: 1.459-1.465 NOTE: Dropper insert is not included with the 4 oz. and 16 oz. size bottles NOW® Essential Oils are analytically tested for identity, purity and adulteration to assure the highest quality.