Galvanic unit current uses which type of electrical current?

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Multiple Choice

Galvanic unit current uses which type of electrical current?

Explanation:
Direct current is used because galvanic devices deliver a steady, one-way flow of electricity. That constant polarity drives electrochemical reactions at the skin, which is what enables desincrustation and iontophoresis. If the current kept reversing direction, as with alternating current, the chemical changes needed to affect the skin wouldn’t be sustained. Pulsed current involves bursts, and while some galvanic setups can be pulsed, the classic galvanic treatment relies on continuous direct flow to achieve its effects. Waveform current isn’t a standard way to describe galvanic therapy.

Direct current is used because galvanic devices deliver a steady, one-way flow of electricity. That constant polarity drives electrochemical reactions at the skin, which is what enables desincrustation and iontophoresis. If the current kept reversing direction, as with alternating current, the chemical changes needed to affect the skin wouldn’t be sustained. Pulsed current involves bursts, and while some galvanic setups can be pulsed, the classic galvanic treatment relies on continuous direct flow to achieve its effects. Waveform current isn’t a standard way to describe galvanic therapy.

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