Willow bark contains the chemical salicin, which is the precursor to aspirin.The active salicin in white willow bark acts primarily as both an analgesic and an antipyretic. The actual mechanism of ...

The bark of white willow doesn’t contain much salicin. Raw Pixel/Public Domain. A clinically effective dose of 60–120mg of salicin would be very hard to obtain from simply chewing white willow ...

Willow bark, known for its pain-relieving properties, has been used historically and is available as an unregulated supplement in various forms. However, research on its effectiveness is conflicting.