though if you placed your hair into a bowl of freshly squeezed orange juice and allowed the juice to cover your hair, would the acid in the juice damage your hair ?(given that oranges are seen as natural products?)
so why do bath products and teabags have extracts of orange etc in them because your skin and your stomach would be classed as more important than hair obviously, do you mean that the extracts could be seen as artificial products/colourings and therefore not as dangerous?