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Before you use this device
Advised not to use it if any of these 8 conditions apply to you.
- Currently pregnant
- Currently breastfeeding
- Recent skin treatments
- Active inflammatory skin conditions
- Compromised skin barrier
- Taking photosensitising medication
2 less common conditions
- Light-induced epilepsy
- Photosensitivity disorder
A short safety check comes first. This device carries a manufacturer safety screening — six questions, asked once in the CellSync app before your first session. Your answers are not stored; only whether the device is suitable for you.
The Specialist
I.st LUCENIA Hi-Fit
8-Mode HIFU + Multi-Technology Device
Works with the CellSync - Skin Intelligence app for iPhone and Android ↓Not suitable for everyone — read the Important safety information below in full before first use.
Description
Focused firming, at home. The Hi-Fit pairs a HIFU Focus cartridge — for the look of lifted, firmer skin along the cheeks and jaw — with a Multi cartridge running seven LDM, RF, EP and microcurrent programs. Two cartridges, eight modes, one device — from single five-minute shots to the three-step Pro program for intensive days.
Part of the I.st LUCENIA range by BNC Korea. Designed and manufactured in Korea by BTB Korea Co., Ltd, a BNC Korea company. Distributed in the UK exclusively by CellSync Limited. 1-year warranty.
Specifications
- Focus CartridgeHIFU, adjustable depth 1.5 / 2.0 / 2.5 / 3.0mm, unlimited use
- Multi CartridgeLDM dual ultrasonic 3MHz / 10MHz, unlimited use
- TechnologiesHIFU, LDM, RF, EP, microcurrent, LED
- Battery7.4V, 2000mAh (14.8Wh)
- Input5V 2A, USB-C
- Appliance ClassClass III
- Warranty1 year (6 months battery)
What's in the box
Why it's in the system
Focused firming, at home. The Hi-Fit pairs a HIFU Focus cartridge — for the look of lifted, firmer skin along the cheeks and jaw — with a Multi cartridge running seven LDM, RF, EP and microcurrent programs. Two cartridges, eight modes, one device. Designed and manufactured in Korea by BTB Korea, distributed in the UK exclusively by CellSync.
Targets & wavelengths
What it targets
- Firmness
- Fine lines
- Early signs of ageing
Wavelengths used
- Red
- Near-infrared
- Yellow
- Blue
- Pink
The modes that use these, and how long each runs for, are set out in the modes section on this page and in the manual supplied with your device.
The modes
The Modes
The modes
Two cartridges, eight modes. HIFU focused firming on the Focus cartridge, and seven LDM, RF, EP and microcurrent programs on the Multi cartridge.
Select a mode to see how its session is weighted.
- Red
- Near-infrared
- Yellow
- Blue
- Pink
HIFU
HIFU · Focus Cartridge
LUMI Shot
LDM + Yellow LED
RF Shot
RF + Red LED + IR
MT Shot
EP + Blue LED + Vibration
V Shot
Microcurrent + Pink LED + Vibration
Beauty
LDM + Yellow LED → EP + Blue LED
Exercise
RF + Red LED + IR → LDM + Yellow LED
Pro
RF + Red + IR → LDM + Yellow → EP + Blue
Cartridges swap in seconds — the Focus cartridge runs HIFU, the Multi cartridge runs the remaining programs. Light colours shown are the LED therapy used in each mode; near-IR is invisible to the eye. Profiles are illustrative, based on the manufacturer's mode guidance.
Hi-Fit or Dual Shine?
Choose the Hi-Fit if focused firming is your priority — HIFU on the Focus cartridge is what sets it apart. If you want one device for daily face and scalp care, look at the I.st LUCENIA Dual Shine.
Important safety information
The I.st LUCENIA Hi-Fit is not suitable for everyone. Do not use if you have an implanted electronic medical device (such as a pacemaker), metal implants or a metal allergy, are pregnant or breastfeeding, are under 18, or have a history of epilepsy or seizures, heart or cardiovascular conditions, cancer, or other conditions listed in the user manual — please read it in full before first use, and consult a qualified healthcare professional if any listed condition applies to you or you are unsure. Remove metal jewellery before use. Not for use on the throat, on wounds, or on areas that have undergone procedures or surgery. Start at Level 1. If you experience persistent redness, swelling, irritation or any unexpected change in the skin, discontinue use and seek advice from a qualified healthcare professional.
Delivery & payment
· Secure checkout via Shopify
CellSync products are cosmetic. They are not medical devices, and any references to results refer to the visible appearance of skin — not medical claims.
Designed for daily life
Focus Cartridge (HIFU)
The depth-adjustable focused session, with four settings from 1.5mm to 3.0mm: shallower for delicate areas, deeper for cheeks and jaw, as directed in the user manual. Unlimited use — no replacement cartridges to buy.
Multi Cartridge
The versatile everyday cartridge combining warming, massage and light modes for smoother-, brighter-looking skin.
5–7 minute programs
Single-step shots through to the three-step Pro program for intensive days.
Korean engineering
Designed and manufactured in Korea by BTB Korea, distributed in the UK exclusively by CellSync.
Using It With Your Protocol
- 01 Cleanse. Start with clean, dry skin — your CellSync cleanser removes residue so each program glides evenly.
- 02 Apply Serum. MT Shot and V Shot are designed to be used over your CELA-recommended serum.
- 03 Choose Your Program. Five-minute single shots on focused days, the three-step Pro program on intensive ones. HIFU is your dedicated firming session — follow the cadence in the user manual.
- 04 Seal. Finish with your barrier cream to close the ritual. Consistency, not intensity, is what shows over time.
Questions
Before you begin
Is it suitable for sensitive skin?
How often should I use it?
Do I need to use it with your skincare?
What's the warranty?
Complete the routine
