Dumonde Techs G-10 Lubricant is something special. It is 100% biodegradable. By this, Dumonde doesnt mean that 51% of the lube is biodegradable, which often is enough for people to make a claim about their product. They mean 100%. That means the lube, the carrier, everything. There are no petroleum products in this lube. Only plant products. Bio-lube if you will. G-10 works like any other lube, albeit one with a nice citrus smell. Start with a clean chain. Dribble on the lube. Wipe off. Wipe again. Go. If it performs at all like other Dumonde lubes, it might even perform better after one or two bike washings. Because it is biodegradable, it might not last quite as long as Dumondes Original and Lite lubes, but we found those lubes to be pretty long lasting. The Dumonde Tech G-10 lubricant comes in a recyclable drip bottle. The lube is colored green.