> There are so many useless chemicals in modern products... Like foamers in shampoos... You don't need that crap, it works fine without it... But does it work

> There are so many useless chemicals in modern products... Like foamers in shampoos... You don't need that crap, it works fine without it... But does it work fine in zero-G, and does the "natural" alternative interact with any other process on the space station? This sort of substitution is trivial here on Earth, and quite complex in a tiny closed ecosystem spinning through the cosmos