Blue Tansy- Tanacetum Annuum Linnaeus Extraction Method - Steam Distilled Description: Blue Tansy oil is sometimes known as Moroccan Chamomile or Moroccan Tansy. Blue Tansy oil is very dark blue in color and is considered a powerful anti-inflammatory and for its anti-histamine, anti-allergen and anti-fungal. Historical Uses: Historically Blue Tansy oil has been used to help with asthma, muscular aches, eczema, allergies, and to calm feelings of stress.  Blends Well With: Geranium, Ylang Ylang, Lavender, Clary Sage, Spearmint and Petitgrain.  Uses: Blue Tansy oil is generally considered safe to use topically as long as you dilute it before applying.