Tag: Chemical composition

According to scientific research, the body produces three distinct types of tears, with emotional tears having a different chemical composition than tears for lubrication or irritation. But can the emotion behind the teardrop be identified visually? The answer to whether do tears of sadness look different than tears of happiness is more complex than it appears.

According to a study published in the *Egyptian Journal of Forensic Sciences*, the major and active component of Robin® powder blue is Ultramarine blue pigment. This common laundry whitener has a surprisingly complex composition and history, leading many to wonder: **what is Robin Blue powder made of?**

While ZYN's manufacturer lists standard, food-grade ingredients, a scientific study conducted by the National Institutes of Health detected low, trace levels of several potentially harmful compounds, including formaldehyde. The question of whether formaldehyde is in ZYN, and what that means, is more nuanced than a simple yes or no.