Understanding Microcurrent: Frequency, Microamps, and Waveforms

Understanding Microcurrent: Frequency, Microamps, and Waveforms

Understanding Microcurrent: Frequency, Microamps, and Waveforms

Microcurrent facial devices are increasingly popular for toning, firming, and rejuvenating the skin, but terms like microcurrent, frequency (Hz), microamps (µA), and waveform can be confusing. This guide will clarify these concepts and explain how Mojia Boost .3, Pro Lift, and Charis devices use them for optimal results.

What is Microcurrent?

Microcurrent is a low-level electrical current that mimics the body’s natural electrical signals. It has been safely used in medical and cosmetic treatments for decades. When applied to facial muscles, microcurrent stimulates them, promoting:

  • Improved muscle tone

  • Enhanced skin firmness

  • A naturally lifted appearance

Key point: Microcurrent intensity (µA) is different from frequency (Hz) — they are separate parameters.

Frequency (Hz) Explained

Frequency measures the number of electrical cycles per second. In microcurrent devices:

  • Frequency and current (µA) are independent.

  • Home-use devices typically operate between 8–50 Hz, while Mojia devices are precisely calibrated:

    • Boost .3: 0.3 Hz — deep facial rejuvenation, collagen stimulation, and skin repair

    • Pro Lift: 10 Hz — facial muscle toning and lifting

    • Charis: 50 Hz — stronger stimulation with visible muscle contractions

Misconception: Higher current does not mean higher frequency. Frequency stays constant regardless of the current level.

Depth of Penetration & Frequency

Frequency directly affects how deep the current penetrates the skin:

  • High frequencies: shallower penetration, mainly targeting surface layers.

  • Low frequencies: deeper penetration, reaching underlying tissues and muscles.

For deep rejuvenation, frequencies below 1 Hz, like Boost .3, are ideal. For toning facial muscles, 10 Hz (Pro Lift) provides effective results.

Microamps (µA) – Current Intensity

Microamps measure the strength of the current. Typical facial treatments use 50–500 µA, which is:

  • Safe for home use

  • Gentle on skin

  • Effective for stimulating facial muscles

Tip: Adjust µA according to comfort; it does not affect frequency.

Waveforms: Why They Matter

The waveform controls how the current flows through the skin. Square waves are common in Mojia devices because they:

  • Deliver consistent, controlled pulses

  • Ensure symmetrical contraction and relaxation of muscles

  • Promote muscle toning, lifting, and firming

Consistent waveforms enhance treatment precision and comfort.

 

 

Frequency Matters — Mojia Microcurrent Devices (Detailed)

Boost .3
0.3 Hz
Microamps: 50–500 µA, gentle stimulation
Waveform: Square wave, symmetrical pulses
Depth of Penetration: Deep tissue, collagen stimulation, skin repair
Ideal for deep facial rejuvenation and long-term skin vitality.
Pro Lift
10 Hz
Microamps: 50–500 µA, adjustable for comfort
Waveform: Square wave, controlled muscle contractions
Depth of Penetration: Medium, targeting facial muscles for toning
Perfect for at-home facial muscle lifting and contouring.
Charis
50 Hz
Microamps: 50–500 µA, stronger sensation
Waveform: Square wave, visible muscle contractions
Depth of Penetration: Superficial to medium, spa-like professional treatment
Combine with warming or cooling therapy for a therapeutic, professional-grade facial 2–3x weekly.

Conclusion

Understanding the differences between microcurrent, frequency, microamps, and waveform is key to achieving professional results at home.

  • Boost .3: Ideal for deep skin rejuvenation with low-frequency precision

  • Pro Lift: Perfect for facial muscle toning and lifting at a safe 10 Hz

  • Charis: Advanced 50 Hz microcurrent with warming and cooling for a spa-like experience

With proper frequency, intensity, and waveform, Mojia devices deliver safe, effective, and scientifically-backed microcurrent treatments for at-home skin rejuvenation.