White Willow Bark/ Willowbark/ Salix alba/ Salix alba Bark
It is mainly extracted from bark and contains Salicylic acid. Like salicylic acid, salicylic acid must be stable in acidic environment. The content of Salix bark in the products on the market is not ideal to give full play to the effect similar to salicylic acid. However, the structure of salicin is similar to aspirin and has anti-inflammatory effect.
ref.
paulaschoice.com
cosdna.com
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