Do ALL Arnica based products have the same ability to inhibit inflammation?
No, unfortunately not. Tests on a variety of Arnica based products show a wide variation in the inhibition of NF-kB. These differences can probably be explained by the differing levels of sesquiterpene lactones found in products available on the UK market. It is clear that some products do not contain any of this essential group of substances! Sesquiterpene lactones are relatively unstable substances and levels are highest in fresh plant material.