Our aging skin is the target of billions of dollars worth of marketing, the object of a continual stream of cosmetics, drugs and 'nutraceuticals' promising to deliver age-defying results. But what really works? What does the scientific evidence say?
As far back as the 5th century BC the Greek physician Hippocrates wrote about the use of a bitter powder extracted from willow bark that reduced fevers and eased aches and pains. Native Americans also used an infusion of willow bark for similar purposes. What was this remarkable "healing" principle within the bark that relieved dis-ease?
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