The claim this article makes is that the sebum your face produced overnight will not only benefit your skin but also protect it. According to research done by the American Academy of Dermatology, which is fact checked by licensed doctors, sebum does benefit your skin, but overproduction and underproduction can have drawbacks on an individual. They also recommend washing your face in the morning and before bed, which does contradict the opinion of vogue. According to MedicalNewsToday, which draws most its facts from the AAD, the amount of times a person should wash their face depends on the individual, for instance if someone has oily skin it is recommending they wash their face more frequently than someone with drier skin. In conclusion, this article isn't wrong, but exaggerated it's claim which created a misleading narrative.