Finding the ingredient

Many years ago, people used medicines made from plants to cure their illnesses. In 500BC, Chinese healers discovered that chewing Willow tree bark could cure headaches and toothache.

Willow bark contains lots of different ingredients. It is not really safe to take as a medicine. Scientists have purified the ingredient that stops pain. This is a much safer medicine to take.

Discussing the chewing of willow bark

But how can you get the ingredients from the bark?

See how we get the ingredients from the bark

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