I’ve tried everything and can say from “MY” experience that GT85 is no worse than any of the others and is a dam site easier to apply,
The best for “ME” is R’n’R blue, I use the bottle and drop a marble in the bottom to help mix the cloudy bottom up, it’s easy to apply and pretty clean in use, I’ve used squirt to no avail and literally thought I’d be better off dropping candle wax on the links, useless, no lubricarion and just fell off, I know how to apply it and I ride in the wrong flavour mud but it’s useless, Purple extreme, should be re named black extreme “with added grit” as it attracts muck like a magnet.
Muc Off, congeals into some kind of sticky black yack all over the chain ring and jockey wheel,
Putoline, although the concept appears to be an effective one I,ll wage a crosser can generate some heat into the chain as it whips round the ring, this must aid lubricarion and generate some fling, put it on a MTB chain and it creates a tacky semi static in the driveline, hard to describe apart from it being stubborn to change down sometimes almost like the gears are not set up correctly as the chain struggles move freely, In winter it’s worse and I often find I end up letting it down on the chain with guess what? GT85