Salix alba bark extract is an extract from the bark of the white willow – Salix alba. It contains a plant equivalent of aspirin, which has anti-inflammatory, astringent, and skin-softening effects.
Willow bark is one of the oldest natural remedies in the world. Willow bark tea was the go-to remedy to treat fever and inflammation before the invention of aspirin. Salicin, the active ingredient in willow bark, was actually the ingredient that led to the invention of aspirin.
Willow bark extract has potent anti-inflammatory effects due to this salicin content. Salicylic acid, derived from the metabolism of salicin, is able to soften hard and cracked skin (e.g., on the soles of the feet). Tannins from the willow bark extract have astringent effects and can aid in the skin’s healing process.
This extract should be avoided by people with an aspirin allergy.