15% Salicin Standardized Extract Temporary Relief from Minor Pain of Overexertion A Dietary Supplement Botanicals/Herbs Family Owned Since 1968 GMP Quality Assured Willow is a shrub with a long history of traditional use. Modern scientific researchers have identified numerous compounds from its bark that contribute to it's bioactivity. Of these active compounds, Salicin is best known for its support of the body's healthy response to normal physiological stress. In addition to Salicin, polyphenols and flavonoids have also been found to contribute to its activity. Now Willow Bark has 15% Salicin plus a natural balance of other bioactive compounds that may gently help to temporarily relieve minor pain caused from overexertion and typical everyday stress.