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companies turn to willow bark extract to fill the beta hydroxy acid
role. However, willow bark is a source of a lot of confusion in this
confusion happens because willow bark extract contains anti-inflammatory
salicin, a type of salicylate. When orally ingested, salicin is
converted by the digestive process into salicylic acid. In a laboratory
setting, salicin can be chemically oxidized to yield salicylic acid.
(Fun Fact: Salicylic acid is the precursor to aspirin.)