Essential oil is the natural essence of plants, so its characteristics include: volatile, afraid of light, afraid of drastic changes in temperature, etc., so it must choose its own packaging to facilitate its preservation. The material of the essential oil bottle is generally glass, and the thickness of the bottle must ensure the firmness of the bottle. There are also some essential oils that are packaged in colorless transparent glass bottles, but there is also a small aluminum can outside it to ensure protection from light.
Glass bottles are relatively stable and do not easily react chemically with essential oils. And ordinary plastic bottles, including some plastic sub-bottles, are not ideal. When containing essential oils, some harmful substances are easily precipitated, because some essential oils are highly volatile and their molecular structures are not very stable.
Use dark glass bottles, mainly to prevent some essential oils from photosensitizing.
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