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Medicube's AGE-R Booster Pro made consumer electroporation mainstream. The Ultra Tune 40.68 is the next tier — adding professional-grade 40.68MHz radiofrequency to the device's existing electroporation and microcurrent capabilities. The 40.68MHz frequency sits in the ISM (Industrial, Scientific and Medical) radio band used by professional RF devices like Thermage and Sofwave in clinic settings. Medicube's claim is that this frequency achieves optimal dermal heating depth at safe consumer power levels. Here's what that means in practice and whether it represents a genuine upgrade over the Booster Pro.
What Is 40.68MHz Radiofrequency?
Radiofrequency energy heats tissue by causing oscillation of water molecules and ions in the dermis — the same principle as a microwave oven, but at much lower power and with precise depth targeting. The frequency determines how deeply the energy penetrates:
**Lower frequencies (0.3–3MHz)**: Penetrate more deeply — used in surgical RF ablation and Thermage (6.78MHz) for deep SMAS-layer heating.
**Higher frequencies (30–50MHz)**: Shallower penetration, targeting the upper dermis at 1–2mm depth — the zone where fibroblasts responsible for collagen synthesis concentrate.
**40.68MHz** sits precisely in the ISM band, a regulated frequency window that avoids interference with medical equipment. It is the same frequency class used by Sofwave (professional ultrasound-RF hybrid used in dermatology). At this frequency, Medicube claims targeted heating of the papillary and reticular dermis at 1–2mm depth, triggering fibroblast heat-shock response, denaturation of existing collagen fibres (which stimulates remodelling), and upregulation of collagen III → collagen I conversion over 4–8 weeks.
Ultra Tune 40.68 vs AGE-R Booster Pro: The Key Differences
| Feature | AGE-R Booster Pro | Ultra Tune 40.68 | |---|---|---| | Electroporation (EP) | Yes | Yes | | Microcurrent (MC) | Yes | Yes | | EMS | Yes | Yes | | Radiofrequency | No | Yes — 40.68MHz | | RF Depth Target | — | 1–2mm dermis | | Price | $180–$220 | $350–$480 | | App-Guided Protocols | Yes | Yes (expanded) | | Session Time | 10–15 min | 15–20 min | | Best For | Serum delivery + lifting | Anti-aging collagen + lifting |
**The core upgrade**: The Booster Pro does not generate any thermal energy — it uses electrical pulses (EP) and low-level currents (MC, EMS) that operate below tissue-heating thresholds. The Ultra Tune adds genuine thermal RF stimulation of dermal collagen. These are complementary mechanisms: EP improves serum delivery; RF stimulates the structural tissue. Together, they address both surface-level ingredient penetration and deep dermal collagen remodelling.
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Medicube AGE-R Ultra Tune 40.68 RF Device
$350–$480
View on Amazon →Medicube AGE-R Booster Pro
$180–$220
View on Amazon →Medicube PDRN Ampoule for Age-R Devices
$35–$65
View on Amazon →How 40.68MHz RF Stimulates Collagen
When RF energy heats dermal tissue to the therapeutic window (40–43°C), several sequential biological responses occur:
**Immediate**: Existing collagen fibres partially denature — triple-helix structures partially unwind, causing immediate tissue contraction and a transient tightening effect visible right after treatment.
**Short-term (2–4 weeks)**: Heat-shock proteins (HSP47, HSP70) are upregulated in fibroblasts. HSP47 is a collagen-specific chaperone — its upregulation directly increases collagen synthesis rate.
**Long-term (4–12 weeks)**: New collagen I deposits replace the partially denatured collagen III. Skin thickness measurably increases, elastin fibres reorganise, and sustained tightening develops progressively.
At 40.68MHz in a consumer device, the power delivery is calibrated to achieve 40–42°C at 1–1.5mm depth without exceeding 43°C at the surface — the threshold above which superficial burns become a risk. This thermal precision is what distinguishes properly engineered RF devices from cheap 'RF wands' that heat only the surface.
Modes and Treatment Protocols
The Ultra Tune 40.68 operates through the Medicube Age-R App with five main modes:
**RF Mode**: 40.68MHz delivery for collagen stimulation. Used on dry skin with the provided RF conductive gel. Slow, circular movements over treatment zones. 3–5 minutes per zone. Skin should feel warm (40–42°C) but never hot.
**EP (Electroporation) Mode**: Same as the Booster Pro — apply your serum of choice, then use the device to enhance penetration. Best run before RF mode so actives are delivered before thermal stimulation.
**EMS + MC Combination**: Muscle toning and microcurrent used together for immediate lifting effect and ATP stimulation. Typically run at the end of the protocol.
**Recommended full sequence** (per Medicube app protocol): 1. Cleanse and apply PDRN or peptide ampoule 2. EP mode — 5 min to push actives 3. Apply RF gel 4. RF mode — 10 min, full face 5. EMS + MC mode — 5 min, focus on jawline and cheeks
**Frequency**: 3–4 sessions per week. RF has a cumulative remodelling effect — more frequent is better up to daily, but RF thermal tissue exposure does require a minimum recovery interval between sessions.
Results Timeline
**After session 1**: Immediate skin warmth and 'glow' effect. Some users report slight tightening visible same day from collagen fibre contraction.
**2–4 weeks**: Progressive improvement in skin texture and firmness. Fine lines around eyes and mouth show early improvement as the EP-delivered serums work synergistically with RF collagen stimulation.
**6–8 weeks**: The most significant visible changes — jawline definition, reduction in nasolabial fold depth, and overall skin density improvement. This is the collagen remodelling phase producing measurable structural change.
**12+ weeks**: Full benefit realised. Studies on professional RF devices at comparable frequencies show average 20–30% increase in dermal collagen density at 12 weeks. Consumer-device results are more modest but directionally consistent.
Is the RF Upgrade Worth It?
**Yes — if your primary concern is anti-aging collagen stimulation.** The 40.68MHz RF is a genuine, clinically meaningful upgrade over the Booster Pro, not a marginal spec improvement. RF thermal collagen stimulation is a fundamentally different mechanism from electroporation — the Ultra Tune offers both, which no other consumer device in this price range currently does.
**No — if your primary use case is serum delivery enhancement.** The Booster Pro's electroporation is functionally identical across both devices. If you're primarily buying a device to make your serums work better, the Booster Pro at $180 is the correct choice.
**The upgrade argument is strongest for**: Users 35+ focused on anti-aging and collagen support; existing Booster Pro owners who have exhausted EP-only results; anyone who would otherwise consider monthly professional RF facials ($150–$300/session).
Author
Glowstice Editorial
The Glowstice editorial team consists of skincare researchers, cosmetic chemists, and science writers dedicated to translating peer-reviewed dermatology into practical guidance for curious consumers.
