People joke a lot how “everything will give you cancer these days.” As it turns out, there might actually be some truth to that dark humor when it comes to our skincare and household cleaners. Long-story-short: Skincare and beauty items contain hundreds of ingredients known to cause irritation and allergic reactions in the short-term. In the long-term, and in high enough concentrations, some skincare ingredients are linked to cancer, nervous system damage, and reproductive health issues.