I've cycled for years and found this lubricant of a much higher order than prior ones I have purchased. Smooth, quiet and long lasting on both my road bike and gravel bike. I'll purchase it again and recommend it highly!
My wax based lube was not holding up and my shifting was off so I got help from Sagebrush Cycles ride support. The mechanic let me try his personal stash of Dumonde and now it is all I use. Easy to apply and lasts longer in fine sandy dirty conditions than anything else I've used.
What a great lube. This will make your chain nice and slippery.