 causing them to be more irritated. So causing redness, peeling, flaking, burning. This is Carol Chang, a pediatric dermatologist at UCLA, speaking to our colleague Maria Godoy, who reported the story for the NPR Science Desk. And Carol says that patients as young as eight or nine are coming in with rashes or bad reactions to these products. And is that because of the products themselves or the fact that these kids are so young and using them? It's the fact that certain products like chemical exfoliants or retinols