Författare: Tony Hargreaves

It is London in the 1890s. A young woman has just taken a dose of a tonic she’s been given in the belief that it will improve her complexion. About ten minutes pass and she starts to experience breat …

Chemical formulation can be traced back to Stone Age times, when hunter-gatherers attached flint arrowheads to shafts using a resin made from birch bark and beeswax. Today, formulated preparations ar …