Lavandula Angustifolia Oil
Cas No：8000-28-0; 90063-37-9
 Ruth von Braunschweig, Pflanzenöle, Qualität, Anwendung und Wirkung, 2009.
Personally, I really dislike the smell of straight-up lavender essential oil. It can also irritate skin when it is used in high amounts.
based on paula choice
Categories: Plant Extracts, Sensitizing, Fragrance: Synthetic and Fragrant Plant Extracts
Widely used plant that’s a member of the mint family. May be listed by its Latin names Lavandula angustifolia or Lavandula officinalis. Primarily a fragrance ingredient, it may have beneficial properties for skin but is also a potential sensitizer due to its fragrance components. The oil form is more likely to aggravate skin than the extract form, especially if you can detect lavender’s distinctive scent.
In-vitro research indicates that components of lavender oil, specifically linalool and linalyl acetate, can have damaging effects on skin in as low a concentration as 0.25%. When exposed to air, these components oxidize, meaning their potential for causing a reaction increases.
If you’re wondering why lavender oil doesn’t appear to be problematic for some people, it’s because research has demonstrated that you don’t always need to immediately see or feel the sensitizing effects for your skin to suffer damage.