Directions: Set of 5 x empty dropper mixing bottles (traditional dropper) for making up individual, customized Bach flower essence combinations. Healing Herbs Bach flower essences are made at full stock concentrate strength. This is a dilution of one drop of Mother Tincture to 400 drops of 40% organic (Ecocert) French brandy. Healing Herbs original stock concentrate can be further diluted at two drops per 30ml to make up the dosage essence. One 10ml stock bottle will make over 150 x 30ml dosage bottles.