I started using squirt recently and it is biodegradable. works great and keeps my drive train nice and clean. As I live in the southeast rain can be an issue, so I just clean out the gook that might get picked up and then re-apply. Otherwise I reapply as needed, generally 150 to 200 miles has been my experience.
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Brian | 2023 Trek Domane SLR 7 AXS | 2023 Trek CheckPoint SL 7 AXS | 2016 Trek Emonda ALR | 2022 Trek FX Sport 5
you should learn to embrace change, and mock it's failings every step of the way.