I have a couple natural briar pipes with no finish on them. They have been darkening with use as one would expect. I started to notice some blotchy spots of darkness that corresponded with where my hands held the pipe. This too was not unexpected. But what I thought was natural hand oils was actually from some Beard Balm which was still on my fingers in the morning as I drove in to work. So I took my beard brush and brushed down the whole pipe with it. I like the color shift it gave the pipe while still providing a no slip finish. I know others use wax on their pipes so nothing new here except the fact that the product used was something I had on hand while driving in to work.