Holy moly, that guy in the reddit post needs to see a dermatologist asap and figure out why their skin is emitting acid.
https://en.wikipedia.org/wiki/Acid_mantle
It is within the range of physiology. Nobody has pH-neutral skin, and aluminium is reactive.
https://en.wikipedia.org/wiki/Acid_mantle
It is within the range of physiology. Nobody has pH-neutral skin, and aluminium is reactive.