If it is ordinary essential oil, it can be applied during the day, but if it contains essential oils that can cause photosensitivity, it should not be applied during the day. If it is applied, do not go out in the sun.

Because photosensitive essential oils are used during the day, if exposed to the sun, the skin will darken and even cause skin cancer. Photosensitivity also varies from mild to severe, such as grapefruit. If you use it at a low dose at night, it doesn't matter if you are exposed to the sun the next day. But citrus essential oils, such as lemon, bergamot, orange, sweet orange, lime, angelica root, lemon verbena, coriander, etc., are all highly photosensitive essential oils, so you must avoid ultraviolet rays.

Other taboos for using essential oils:

Do not contact your eyes. The concentration of essential oils is extremely high, so you must not contact your eyes.

Good quality essential oils can be taken internally, but not all essential oils can be taken internally, and the quality of essential oils in the market varies. If you cannot judge the quality of essential oils, it is best not to take them orally.

When there are wounds on the skin, avoid using essential oils on the wounds. However, if it is a small cut or wound, you can use essential oils to help the skin heal faster.

Do a skin test before use. Adjust the essential oil with a concentration of 3% and use it on the armpit or chest. You can use the essential oil only after there is no allergic reaction for at least 24 hours.

Lactating women should avoid breastfeeding within 6 hours of massage and bathing, because essential oils will participate in human blood circulation, and the essential oils will be almost completely metabolized after 6 hours.

It is generally not recommended for women to use essential oils during menstruation, because more than 85% of essential oils have emmenagogue effects, which may increase menstrual blood volume and occasionally cause bleeding.

During the first three months of pregnancy, it is forbidden to use essential oils for bathing or massage. Because of the menstrual effect of essential oils, avoid using essential oils with estrogenic effects during pregnancy, such as basil, clary sage, fennel, etc.

Extended information:

Effects of essential oils

Plant essential oil molecules are absorbed through the nasal mucosa system to stimulate the olfactory nerves. The olfactory nerves transmit the stimulation to the brain center, and the brain produces excited. It can regulate nerve activity, and can also enter the alveoli through the respiratory system, and then enter the blood through the blood circulation and be directly transported to various parts of the body.

Essential oils directly enter the subcutaneous tissue through affinity. On the one hand, plant essential oil molecules stimulate nerves and ultimately regulate nerve activity and internal circulation. On the other hand, they directly act on stable states such as the internal environment to accelerate body fluid activity, thus Improve the internal environment and further regulate the entire body and mind.

Essential oils have sterilizing, anti-inflammatory, healing, deodorizing, and softening and delicate skin effects.

It can enhance the immune function of the respiratory tract, anti-filtration virus effect, sweating or antipyretic effect, and phlegm-resolving effect.

Plant essential oil molecules directly kill germs and microorganisms. Essential oil molecules entering the human body can enhance the body's immunity.

Reference: Essential Oils - Baidu Encyclopedia