Recognize 1,4 dioxane on your sudsing labels? It may sound innocuous, but the stuff is actually a human and animal carcinogen and a nasty byproduct of processing harsh petro-chemicals with ethylene oxide. (Got sodium lauryl sulfate? Ethyoxylate it and you get sodium laureth—the “eth” indicates the process.) The next time you’re seeking out shampoos or liquid soaps, look for truly natural products that rely on ingredients like sodium coco sulfate, which is derived from coconuts, not oil.