Eyebright Extract details: Product Name:  Eyebright P.E. Latin Name:  Euphrasia Regelii Wettst Specification:  5:1 Product type:  Brown Fine Powder Part of the plant used:   whole herb  Active Ingredient:  Flavonoids Testing method:  HPLC/UV Extract method:  Grain Alcohol–Water Extract Ratio:5:1 Plant Origin:  Euphrasia officinalis CAS No.:20362-31-6 What is Eyebright extract? Eyebright is the name of a group of plants belonging to the figwort family. It is also known as pieces of snow grass, obtained from seeds shaped like millet. Eyebright is commonly used to improve respiratory problems, such as colds, cough and …