The Willow Bark Extract from Worldpharma contains natural salicins and substances similar to salicylic acid, which is why it is recommended for fever and muscle aches. It is not recommended for children or pregnant women.
Salicylic acid contains anti-inflammatory, antibacterial, antimicrobial and astringent properties, making it a great ally for oily and combination skin, its external use regulates sebum on the skin, deflates those areas where acne is more aggressive, and is a powerful natural preservative.