Archive for the ‘Phototoxic 光毒性’ Category

那種精華油用後不能暴露於陽光下及為什麼呢? Which essential oils cannot be exposed to sunlight or sunbed rays after using?


Which essential oils cannot be exposed to sunlight or sunbed rays after using?

DK Aromatherapy Box

某些精華油含光毒性,用於皮膚護理時要特別注意。如佛手柑、檸檬、青檸、柚子、苦橙。 客人使用精油前應了解精油的特性, 並遵照指示使用, 亦可向香薰治療師查詢。

Some essential oils like: Bergamot, Lemon, Lime, Grapefruit and Orange Bitter are phototoxic on the skin that should be used carefully. Users must understand their properties and instruction well before using, or consult an aroma therapist if necessary.


哪種精華油用後不能暴露於陽光下,為甚麼呢? Any essential oil should not use under sun?


Any essential oil should not use under sun?




  • 當歸
  • 佛手柑(除非標明不含香豆素)
  • 茴香
  • 檸檬
  • 青檸
  • 橘子
  • 香橙
  • 馬鞭草
  • 廣藿香


Some essential oils become phototoxic when exposed to direct sunlight. These oils are fine in candles, but shouldn’t be used in any sort of application where the essential oil will stay on your skin and be exposed to the sun. Using these oils in soap is suitable because it will be rinsed off, but using them in a balm or a lotion is not recommended when being expose in the sun for a long period of time i.e going for a sun bath or sun bed because the essential oils stay on your skin.

Below are some of the essential oils that are phototoxic and must be used with caution:

Phototoxic Essential Oils

  • angelica root
  • bergamot (unless it’s specified as “bergaptene-free")
  • cumin
  • ginger
  • lemon
  • lime
  • lovage
  • mandarin
  • orange
  • verbena
  • patchouli

Note: Just because they’re on this list doesn’t mean you can’t use these oils It just means you need to do your research beforehand and know exactly what the characteristics and cautions of that particular oil is. For example, eucalyptus essential oil is generally known to be non-toxic and non-irritating when diluted properly, but it can be very toxic if taken internally. Cinnamon, clove, and many of the “spice" essential oils, can be used safely when are diluted properly and in low concentration but can be irritating if used in too high concentration, or to people with sensitive skin.

Note: This list is not comprehensive of every single essential oil that may cause harm. It is for general information and reference only.