Yep and like most things they don't list all ingredients on the bottle.
Really? Legally, inactive ingredients making up more than .1% and active more than .01% must be listed. So all our cleansing products (and more) are not doing this? Why has no-one analysed this and/or reported to the authorities?

Oh yes, because any extras fall within those tiny tolerances and are near enough not there at all. Rainwater contains more additional chemicals than do hand creams but we din't melt when caught with no brolly.