Ask HN: How do I make my own chemicals?
I want to make a substance that prevents calluses.I'm not fussed about how it works. Perhaps it will be a spray that hardens or softens the hand so dead skin won't build up, perhaps it will be a paste that hardens, literally protecting the skin. It doesn't really matter, I just need some advice about how to start experimenting.Beeswax, rosin, and pine tar have promising properties, how would I...