the use of arnica for bruising, inflammation, pains, sprains and other injuries dates back to 16th-century germany and is still a staple in muscle rub formulas today.
strong arnica extracts are hard to come by. we learned this pretty early in the development of the muscle rub and decided to run our extractions in-house to keep potency at consistently higher levels than what's available. we use a low heat oil infusion and press to extract.
if you find a little pant fiber in your muscle rub, it's from the arnica extract. arnica flowers have very few fibers that sneak through the filtering process.