The essential oil coming from the second most common type of chamomile, the Roman Chamomile. It also contains the biologically active anti-inflammatory components, bisabolol, and chamazulene, but less than the more commonly used German Chamomile. It's not clear what Roman Chamomile knows that the German one does not.
- Mol Med Report. 2010 Nov 1; 3(6): 895–901., Chamomile: A herbal medicine of the past with bright future