Some essential oils contain photosensitive components, and once the photosensitive components are exposed to light, it will have the opposite effect on our skin, which will easily lead to tanning of our skin and even skin diseases. 2 which essential oils can't see light

The reason why essential oils are photosensitive is because they contain an ingredient called bergamot lactone, so most citrus essential oils actually contain this ingredient. Moreover, citrus essential oil is mainly related to bergamot, sweet orange, orange, lemon, grapefruit, etc., and sandalwood essential oil also contains photosensitive components. 3 how to store essential oil

1. Essential oil is highly volatile. In order to avoid the problem of oxidation and rapid volatilization of essential oil, the bottle cap of essential oil must be tightened at this time, and the number of opening times should be reduced, so as to avoid the deterioration of essential oil due to excessive contact with air.

2. You should not put the essential oil in direct sunlight, or where there is sunshine. Sunshine is the easiest way to make the essential oil deteriorate.

3. it is necessary to avoid high temperature when the essential oil is stored, because it is easy to volatilize at high temperature.

4. When the essential oil is stored, the temperature is 18-3 degrees at room temperature, and the best temperature is 25 degrees, because the low temperature in the refrigerator is not suitable for the preservation of essential oil. 4 how to use the expired essential oil

If the essential oil is used as a skin care product, once it expires, it cannot be applied to the skin. However, if the essential oil has just passed the shelf life of a few days, then the essential oil can be used in daily life, and it can be used for aromatherapy or deodorization, which is a good usage.