Essential oils, CO2S and absolutes are usually sold for use in small bottles. Commonly they are sold in 5ml, 10ml and 15ml bottle sizes. More expensive oils are sold in 2ml and 1 dram bottle sizes. These oils should be stored very carefully because they can easily get damaged by ultraviolet light and get deteriorated very fast at the blue end of the spectrum, as compared to red. They can lose their therapeutic benefits and deteriorate over time. For instance, citrus oil oxidizes and begins to lose aroma and its therapeutic properties; but not every essential oil loses its value, like sandalwood and patchouli oils.
You should always store essential oils in an amber colored bottle and if you are keeping the oil in a blue color bottle then keep it in a dark place, this is not...Read More