In article ,
Prometheus wrote:

Fourth, does a guy need to wear gloves when handling the piece to
prevent some nasty dermatitis? It's also a good bet that LDD contains
moisturizers to protect your hands.

And Sixth, is it possible to buy this chemical without a special
license?

Well, we put the stuff in our mouths by way of toothpaste, wash our
bodies and hair with it. And according to the link below costs $12.60 a
gallon:

http://www.chemistrystore.com/sodium_lauryl_sulfate.htm