Human pursuit of body perfection and ideal aesthetics means that we're increasingly resorting to cosmetic interventions to achieve the look we're after. But evidence is mounting that some of these cosmetic and hygiene enhancements might come with a hidden health cost: many have never been subject to rigorous appraisals of the chemicals they contain, meaning that as more people embrace them, some concerning trends are beginning to emerge... Like this podcast? Please help us by supporting the Naked Scientists