Don't use it too often. If you want to achieve curative effect, you usually need a low dose for a period of time, so that the effect of conditioning your body function is the best. Usually used, the concentration is still 3-5%, and the more dangerous essential oil does not exceed 3%.

Don't use photosensitive essential oil in places where it will be exposed to the sun. Some essential oils contain components that can cause photosensitivity. If exposed to the sun after use, the skin will turn black and even cause skin cancer. Photosensitivity is also light and heavy, such as grapefruit. It doesn't matter if you use it in small doses at night and bask in the sun the next day. Citrus essential oils, such as lemon, bergamot, orange, sweet orange, lime, angelica dahurica root, lemon verbena and coriander, are all photosensitive essential oils.

Don't touch your eyes. The concentration of essential oil is extremely high. Please do not touch eyes.

Oral instructions must be provided by experts or manufacturers. Good quality essential oils can be taken orally, but not all essential oils can be taken orally. The essential oils in the workshops are all mixed. If you can't judge the quality of essential oil, you'd better not take it orally.

When the skin has a wound, you should avoid using essential oil, but if it is a small knife wound or a small wound, you can use essential oil to make the skin heal quickly.

Do a skin test before use. Adjust the concentration of 3% essential oil and use it under the armpit or chest. Only when there is no allergy for at least 24 hours can you use essential oil.

Except lavender and tea tree essential oils can be applied on a small area with cotton swabs, unilateral essential oils must be diluted or mixed with base oil before they can directly act on the skin. Composite oil and base oil can be directly used.

Breast-feeding women should avoid breastfeeding for 6 hours by massage, bathing, etc., because essential oil will participate in human blood circulation, and after 6 hours, essential oil will be almost completely metabolized.

It is generally not recommended for women to use essential oils during menstruation, because more than 85% of essential oils have menstrual function, and there may be an increase in menstrual flow and occasional bloody collapse.

During pregnancy, you can use incense all the time It is forbidden to use essential oils for bathing or massage in the first three months of pregnancy, or avoid using essential oils with estrogenic effects during pregnancy because of their menstrual function, such as basil, sage and fennel.