I am not sure what Swarfega is called in the US but in the UK it is a hand cleanser for dirt from activities like fixing your car.
It contains:
Aqua Trideceth-8 C9-C16 Alkanes/Cycloalkanes 2-Bromo-2-Nitropropane-1,3-Diol Dipropylene Glycol Ethylparaben Methyldibromo Glutaronitrile Perfume Sodium Carbomer Tetrasodium EDTA
See
Does anyone see any disadvantages (apart from cost) to doing this?