When a stubborn clog slows down your kitchen sink or shower drain, it’s tempting to reach for a bottle of powerful drain cleaner. After all, they promise a fast, easy solution—just pour, wait, and rinse. The shelves are full of options that seem like miracle fixes, but the reality behind those bottles is far from harmless. But what most homeowners don’t realize is that those drain chemicals come with some serious risks that can do more harm than good.