SLS is in almost everything you clean yourself, with from shampoo to toothpaste. I only know of one big brand toothpaste that doesn't have it in.SLS = a sufactant you don't really want to be using on your skin. Palmitic acid based sufactants are much more gentle and are sourced from renewables too.
Basicially there is a chain length of the sufacants whereby too long or too short will result in harsh reaction wit the skin ( according to our sufactant guys over in america) and palmitate is pretty much perfect.
I personally have always done well with E45 hand cream and if you must where gloves all day then use an expensive barrier cream to stop the nitrile gloves drying them out.