Since the spring of 2020, the global health crisis related to COVID-19 has placed the pollution risks of megacities as a secondary concern. Should viruses be considered as an integrated part of pollutants? They belong to the large family of microbiota such as micro-organisms, bacteria, viruses, fungi, yeast. Hand washing with soap or hydro alcoholic gel, an essential barrier to virus contagion, has become a way of life around the world.
The bactericidal efficacy of cosmetic hygiene products is evaluated in vitro by following the recommendations of bactericidal tests by distinguishing handwashing products by friction and quantifying the reduction in the viability of Escherichia coli. As for the antiviral activity of a hygiene product, its objectivation seems to be pharmaceuticals
For the face, the wearing of masks, sometimes amounting to many hours daily, becomes a new parameter to be taken into consideration in assessing the tolerance and effectiveness of cosmet