Electricity & EquipmentQuestion 96 of 484
Desincrustation during a galvanic facial uses which polarity, and for what purpose?
a.Positive pole, to close pores
b.Positive pole, to harden tissue
c.Negative pole, to introduce vitamin C into the skin
d.Negative pole, to soften and emulsify sebum and debris in the follicles
Explanation
Desincrustation uses the negative pole (cathode) with an alkaline solution. The chemical reaction at the negative electrode saponifies (softens) sebum and oily debris, making deep cleansing easier.
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