Arnica Montana Flower Extract
Arnica Montana Flower Extract is derived from the dried flower heads of Arnica montana L. (Asteraceae), a yellow mountain flower with a long history of use in herbal medicine. Its CAS number is 68990-11-4. According to CosIng, its official functions are masking, perfuming, and skin conditioning. It is most commonly associated with the treatment of bruising, though scientific evidence for its efficacy on skin is considered questionable.
Traditionally used to address bruising and considered by some to have anti-inflammatory properties. However, the source notes that studies suggest it may be no better than placebo for bruising, and its overall effect on skin is described as "rather questionable."
Some research indicates it can cause skin irritation, and its anti-inflammatory claims are contradicted by other studies. Its effectiveness for bruising has been questioned in studies cited as no better than placebo.
