Friction grease for reducing seat post twisting

I’m running this on all my unis, makes using a single clamp possible:

Interesting. Does it increase the difficulty of adjusting or removing the seat post?

I doubt you’re running carbon fibre seatposts or frames an all your unis…so it works well for standard alloy parts as well? Looks like a neat product. Were you able to find it at your LBS or was it a special order somewhere?