Muc-Off's water-soluble De-Greaser quickly and safely removes built-up oils and grime on metal, plastic, rubber, and seals. Its unique, biodegradable formula allows you to easily and quickly rinse off your bike after use, leaving it completely clean. Muc-Off's research team has spent hours making this product the best solution for waterproof grime and old chain oil residue. Bio formula easily removes stubborn grease. Can be applied to chains, shifters, cables, and derailleurs. Water-soluble formula for easy cleaning. Works on stubborn waterproof grease and chain wax.