I have, for the past several years, formulated my own chain lube and as such, have been pleased with the result in lubrication and chain longevity. A sucker for technology, I couldn't sidestep the opportunity to experiment with ceramic nano particle technology. Enter Finish Line Wet Lube . . . with ceramic particle. Understanding that for the first several applications the chain will exude black material/color when wiping the chain post ride, it, as advertised, decreases with additional applications. So far, so good. The better part is buying it fro The Bikesmiths . . . best price, great communications, free shipping . . . pick 3. Buy it!