Not just blades. If they work with hair dye and bleaches they can easily cause significant damage to your skin. A lot of chemicals they work with are (at the co

Not just blades. If they work with hair dye and bleaches they can easily cause significant damage to your skin. A lot of chemicals they work with are (at the concentrations they use) fairly aggressive and applied directly to the customer's body. I know several people in the profession and they're severely underpaid if you consider both their skill and knowledge.