Liquid Drain Clog Dissolver breaks down hair, grease, toilet paper and organic matter that is stuck in your drain. Dual-chamber bottle with pre-measured applications doesn't require measuring for easy treatment. Dissolver sinks through standing water to reach the clog. Biodegradable formula is safe and noncorrosive to pipes, drains, toilets and septic systems. Dissolver is odorless and doesn't contain sodium hydroxide or bleach.