Citrus limon Ingredients: 100% pure lemon oil Aroma: Fresh lemon peel Attributes: Refreshing, cheerful, uplifting Cheer Up Buttercup Blend: Add 1 drop each of lime oil and grapefruit oil, 2 drops of lemon oil and 6 drops of tangerine oil. Add to a diffuser and enjoy. Extraction Method: Cold Pressed from fresh fruit peel Physical Characteristics:Specific Gravity: 0.849-0.855Refractive Index: 1.473-1.476 Note: Dropper insert is not included with the 4 oz. size bottle. NOW® Essential Oils are analytically tested for identity, purity and adulteration to assure the highest quality.