Watch VoirFilms. Since the late 1970s, the dangers of the sun to health have been widely recognized. As a result, the global turnover in the sunscreen industry is estimated to exceed 9 billion euros. However, when considering the sometimes contradictory medical advice, the guilt over the ecological disaster caused by the runoff of sunscreen products into the ocean, and scandals surrounding expensive creams that are ineffective or even harmful to health, a deeper examination of this very obscure sector seems essential.