Fancy Wax stuff - £54
https://www.chainreactioncycles.com/silca-super-secret-chain-lube-8oz-bottle/rp-prod202181
Farty small bottle of specialist oil - £8.49
https://www.chainreactioncycles.com/finish-line-cross-country-wet-chain-lube-120ml-/rp-prod1041
New Shimano chain - £7.99
https://www.chainreactioncycles.com/shimano-altus-hg40-6-7-8-speed-chain/rp-prod38332
Let me know if you want this compelling info in a coloured bar chart
Seriously though, in manky conditions, my advice would be don't get too hung up about about these magic lubes, just have a bunch of chains, change them out regularly, bin them or use the partially worn ones for a beater bike. One on the bike, another couple being cleaned, oiled and ready to go - there's a very solid argument to buy chains in bulk too if you can.
https://www.chainreactioncycles.com/silca-super-secret-chain-lube-8oz-bottle/rp-prod202181
Farty small bottle of specialist oil - £8.49
https://www.chainreactioncycles.com/finish-line-cross-country-wet-chain-lube-120ml-/rp-prod1041
New Shimano chain - £7.99
https://www.chainreactioncycles.com/shimano-altus-hg40-6-7-8-speed-chain/rp-prod38332
Let me know if you want this compelling info in a coloured bar chart
Seriously though, in manky conditions, my advice would be don't get too hung up about about these magic lubes, just have a bunch of chains, change them out regularly, bin them or use the partially worn ones for a beater bike. One on the bike, another couple being cleaned, oiled and ready to go - there's a very solid argument to buy chains in bulk too if you can.