1 The two most common varieties are German chamomile (Matricaria recutita) and Roman Chamomile (classified as Anthemis nobile, as well as Chamaemelum nobile). The odour profile is one of bittersweet herbaceous hay like notes with a warm and fruity overture. It is sometimes cultivated for its essential oil, which is higher in the active ingredient chamazulene than the Roman variety. German Chamomile Vs. Roman Chamomile From Salvatore Battaglia’s The Complete Guide to Aromatherapy. It is thought to be slightly stronger than Roman chamomile. What I would do is add a drop or two to a tablespoon or so of a light oil (one you know you’re not allergic to) and rub a small amount on my wrist and at the inside of my elbow. Both … Please clarify. Will it work too? So, let’s try to clarify the Which, When and Why of these two wonderful essential oils! If no reaction, I’m good. WE SHIP TO USA & CANADA (FREE SHIPPING ON CANADIAN ORDERS OVER $99). German Chamomile. Oz – Premium Quality Roman Chamomile Oil