Origanum vulgare Ingredient: Origanum Vulgare (Oregano) Oil Aroma: Spicy, camphoraceous Attributes: Purifying, comforting, invigorating Mixes Well With: chamomile, eucalyptus, tea tree, spearmint Extraction Method: Steam Distilled from dried flowering herb Physical Characteristics:Specific Gravity: 0.937-0.955Refractive Index: 1.498-1.521 NOW® Essential Oils are analytically tested for identity, purity and adulteration to assure the highest quality. For aromatherapy use. For all other uses, carefully dilute with a carrier oil such as jojoba, grapeseed, olive, or almond oil prior to use. Please consult an essential oil book or other professional reference source for suggested dilution ratios. After using essential oils, immediately close caps tightly to prevent any oxidation. For best results, please store our high-quality essential oils at room temperature and in the original bottle. You should avoid storing the oils near any kind of heat, which includes cabinets over stovetops, areas with direct sunlight, and areas with excessive humidity like bathrooms.