handy chart showing HOW MANY DROPS of essential oil to use in a 10ml roller bottle-- 2 drops (1% dilution) for kids; 4 drops (2% dilution) for adults for a blend used most days; 10 drops (5% dilution) for adults for a blend used occasionally Essential Oils, Perfume, Essential Oil Blends, Essential Oils Aromatherapy, Essential Oil Diffuser Blends, Aromatherapy Oils, Essential Oil Remedy, Essential Oil Dilution Chart, Diy Essential Oils