Some essential oils contain photosensitive components. After use, if the skin is exposed to the sun for too long, it will turn black and even cause skin cancer. In lighter cases, it may be burned or stained.

2, cause allergic reactions

Long-term use will destroy the surface protection of the skin, make the skin sensitive and easily cause allergic reactions. Light can cause burning sensation, swelling, itching and acne, and severe can cause convulsions.

Step 3 increase the risk of cancer

Long-term use will make the skin dependent, and excessive use will increase the risk of cancer. So the use of essential oil must be moderate and intermittent.

Extended data:

Taboos for the use of essential oils:

1, not 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%.

2. Don't use photosensitive essential oil 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.

3. Do not touch eyes, the concentration of essential oil is extremely high, so do not touch eyes.

4. Oral administration must be explained 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.

5. 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.

6. Do a skin test before use. First, adjust the concentration of essential oil to 3% and use it under your armpit or chest. After at least 24 hours, you can use essential oils without allergies.

7. Except lavender and tea tree essential oils can be smeared 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 used directly.

8. Lactating women should avoid breastfeeding within 6 hours after massage and bubble bath, because essential oil will participate in human blood circulation, and the essential oil will be almost completely metabolized after 6 hours.

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

10, 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.

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