Let’s be honest—when it comes to beauty tech, no one wants to read a science textbook.
You just want to know:
“Will this make my face look lifted and glowy… or not?”
But if you’ve ever held a microcurrent device in your hand and seen words like “hertz,” “frequency,” or “EMS intensity levels,” you’ve probably wondered:
What do these numbers actually mean?
And more importantly—does it matter?
Yes, it does. But don’t worry—we’re going to break it down like we’re chatting over iced oat lattes.
First off: What is microcurrent, in plain English?
Microcurrent is like a tiny workout for your face. It uses low-level electrical currents to stimulate your facial muscles and skin cells. These microcurrents mimic the body’s natural electrical signals—helping tone, firm, and brighten skin over time.
The result?
- Snatched jawline
- Plumper cheeks
- Improved collagen and elastin production
- That “just got a facial” glow
But here’s where it gets a little more technical: those little electrical pulses come in different frequencies, measured in hertz (Hz).
What does “Hertz” even mean?
In the simplest terms, Hertz (Hz) measures frequency—aka, how many electrical pulses are sent per second.
1 Hz = 1 pulse per second
10 Hz = 10 pulses per second
300 Hz = 300 pulses per second (So if your device is running at 1000Hz, that means it’s sending 1000 little electrical pulses to your skin every second)
Different frequencies target different skin layers and effects. That’s why understanding Hz helps you choose the right setting for what your skin actually needs.
Low Hz vs. High Hz: What’s the difference?
| Frequency Range | What It Targets | Best For |
|---|---|---|
| 0.5–10 Hz (low) | Deep muscle tissue | Lifting, sculpting, face contour |
| 10–200 Hz (medium) | Surface muscles + circulation | Puffiness, fluid retention |
| 200–1000+ Hz (high) | Cellular-level | Collagen, skin texture, tone |
| Ultrasonic (1–2 MHz) | Exfoliation, product absorption | Deep cleaning, glow-up days |
| RF (Radio Frequency) | Dermal heating | Long-term collagen, firming over time |
In short:
Lower Hz = Think “deep tissue workout” for your facial muscles.
Higher Hz = More like a “glow-boosting facial” focused on skin surface.
You wouldn’t use the same workout for building abs and de-puffing your face. Same goes for frequencies.
So, how does this play out in your skincare routine?
Let’s say you’re using a high-performance device—like the MR-2331 Dual-Head RF & EMS Facial Therapy Device.
This little skincare powerhouse integrates:
- EMS, for lifting + muscle work
- Radio Frequency (1MHz & 2MHz) for collagen regeneration
- High-frequency Ultrasonic for deep pore cleansing
- And a super smart 58.8° diamond-cut roller that literally feels like your face is being sculpted by an angel
It comes with three adjustable modes—SONIC, EMS+RF, and EMS—with intensities that let you fine-tune your treatment based on how your face feels that day.
Feeling bloated and puffy after wine night? Mid Hz with EMS helps decongest.
Want a deeper, long-term firming session? Go for high-frequency RF at 1MHz or 2MHz.
What does each frequency feel like?
Low Hz: You’ll feel little twitches, especially in the jaw or forehead area. It’s weird at first, then oddly satisfying.
Mid Hz: Warmth, some tingling. Your face might twitch slightly. Great for draining puffiness.
High Hz / MHz: Feels like… nothing. But you’ll notice smoother, bouncier skin after.
“Okay, I just want to know when to use which frequency”
| Skin Concern | Ideal Frequency | MR-2331 Mode |
|---|---|---|
| Drooping cheeks / jawline | 0.5–10Hz EMS | EMS Mode, High Intensity |
| Puffy face | 30–100Hz EMS | EMS+RF Mode, Medium |
| Dull / rough skin | Ultrasonic (1–2 MHz) | SONIC Mode |
| Long-term firmness / anti-aging | 1MHz RF (deep dermis) | RF+EMS Mode |
| Fine lines around eyes | High EMS + gentle RF | EMS+RF, Low |
Switching up frequency is like switching skincare serums—you’re still treating your skin, just targeting different layers.
Pro tip: frequency isn’t everything—consistency is
It’s easy to fall into the trap of “higher must be better.” But just like abs don’t happen after one gym day, great skin doesn’t show up after a single buzz. Use your device 3–5x a week depending on your goals. Stick with a level that feels good. Don’t overdo it. And always—always—pair it with a good water-based gel or serum so the energy flows into your skin, not across dry patches.
And if you’re ready to try a device that actually adapts to your skin—the MR-2331 RF & EMS Facial Device is kind of the one. Want to feel the frequencies for yourself? DM or Message us for a demo.
