Dumonde Tech G10 Bio Green Lube Dumonde Tech G-10 Bio-Green Chain Lubricant is developed from plant, vegetable and/or seed oil, rated as bio-based and Earth friendly. 100% bio-degradable and 100% plant based. Dumonde Tech G-10 Bio-Green Chain Lubricant is backed up with our proprietary technology. Our products out-perform the competition and are safe for the environment. Your bicycle will have extreme protection, will allow you to ride longer, cleaner and more quietly.