Some sources recommend using dark amber or cobalt blue colored glass bottles. Use plastic or aluminum for products containing â€œdilutedâ€ essential oils. Plastic containers, specifically PET, have been shown to store some products containing essential oils remarkably well.
Carrier oils help to dilute the strength of the pure essential oils and are used when oils are going to be applied to the skin. Diluted oils can be stored in plastic containers, typically PET plastics, which are less expensive than glass containers.
A carrier oil is any lipid-based substance used to dilute essential oils.. not all plastics are as delicate as others and not all essential oils affect plastics in the .