Chemistry & ProductsQuestion 87 of 100
What does the overexposure principle mean for a nail technician?
a.Only products labeled as toxic can cause a reaction, so products considered safe may freely touch the skin.
b.One single splash of any product permanently sensitizes you, so an accidental spill ends a nail career.
c.Repeated or prolonged contact with a product — even one that is safe in normal use — can build up a sensitivity, and once you become allergic you stay allergic, so keep products off the skin and use gloves and good ventilation.
d.Overexposure only matters for clients, because technicians build up immunity to the products over time.
Explanation
Overexposure describes a dose problem: the amount and the number of times a chemical touches you or is breathed in, day after day, is what creates sensitization. Once a person is sensitized to a monomer or gel ingredient, the allergy is generally lifelong, so prevention means keeping product off the skin, wearing gloves and ventilating at the source. It is not limited to 'toxic' products, it is not usually caused by one splash, and technicians do not develop immunity — their risk goes up with exposure, not down.
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