Thymus mastichina Ingredients: Pure marjoram oil Aroma: Camphoraceous, slightly medicinal Benefits: Normalizing, comforting, warming Mixes Well With: Basil Oil, Clary Sage Oil, Rosemary Oil, or Thyme Oil Extraction Method: Steam Distilled from the leaves of flowers and plant Physical Characteristics:Specific Gravity: 0.914-0.922Refractive Index: 1.463-1.466 Purity Tested/Quality Assured 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.