Oregano OilOriganum vulgare Aroma: Spicy, camphoraceous. Benefits: Purifying, comforting, invigorating. Mixes Well With: chamomile oil, eucalyptus oil, tea tree oil or spearmint oil. Extraction Method: Steam Distilled from dried flowering herb. Physical Characteristics: Specific Gravity: 0. 937 0. 955 Refractive Index: 1. 498 1. 521 For aromatherapy use. For all other uses, carefully dilute with a carrier oil such as jojoba, grapeseed, olive, or almond oil prior