Best Gel for Medicube Booster Pro, FOREO BEAR and ZIIP
Medically reviewed by
4 independent reviewers
Andrew Conrad Barile, PT, DPT
Doctor of Physical Therapy (DPT) | Licensed Physical Therapist (PT) | CEO and Founder, Xtreem Pulse LLC
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Dr. Andrew Conrad Barile is a Doctor of Physical Therapy and the CEO and Founder of Xtreem Pulse LLC, the engineering company behind PureLift. He earned his Doctorate in Physical Therapy from Daemen College and is a licensed physical therapist.
He brings over two decades of clinical and entrepreneurial experience across physical therapy, craniosacral therapy and medical device innovation, built on a working knowledge of human anatomy and muscle physiology.
For PureLift LAB he reviews how current is delivered across all ten levels, from sub-sensory nanocurrent and skin-level microcurrent to motor-level EMS, and how the Infuse pass fits into the same ten-minute routine.
Bertica M. Rubio, M.D.
Board-Certified Physician, Dartmouth Medical School | Medical Director, Antiaging Regenerative Medicine Clinic
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Dr. Bertica M. Rubio is a board-certified physician and Medical Director of the Antiaging Regenerative Medicine Clinic in Redlands, California. She earned her Doctor of Medicine from Dartmouth Medical School and completed her pediatrics residency at UC Irvine Medical Center.
With decades of clinical experience, she specialises in age management medicine, regenerative medicine, wound healing and growth factor therapies, and her practice integrates evidence-based medical science with advanced aesthetic treatment.
For PureLift LAB she reviews articles for medical accuracy across the whole dial, from the gentle nanocurrent and microcurrent settings through to muscle-level EMS and the Infuse pass.
Daniel Grinberg, MD, FACS
Board-Certified Otolaryngologist | Head and Neck Surgeon | Fellow, American College of Surgeons | Mount Sinai
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Daniel Grinberg, MD, FACS is a board-certified otolaryngologist and head and neck surgeon at ENT and Allergy Associates in West Nyack, New York. He earned his medical degree from Columbia University College of Physicians and Surgeons.
He completed his otolaryngology residency at New York University Medical Center, serves as Assistant Clinical Professor at Mount Sinai School of Medicine, and is a Fellow of both the American College of Surgeons and the American Academy of Otolaryngology.
For PureLift LAB he brings a wider clinical lens, connecting at-home facial stimulation from microcurrent to EMS to the anatomy underneath, with the same rigour we apply to every device specification.
Prof. Dr. med. Ivo Buschmann
Chair of Angiology, Medizinische Hochschule Brandenburg | Clinic Director, University Clinic for Angiology
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Prof. Dr. med. Ivo Buschmann is Chair of Angiology at the Medizinische Hochschule Brandenburg Theodor Fontane and Clinic Director of the University Clinic for Angiology at the Brandenburg University Hospital.
He trained at the University of Hamburg, was a Max Planck Society Fellow at the Max Planck Institute for Heart and Lung Research, and held senior consultant posts at the Charite Universitatsmedizin Berlin before his appointment as Chair in 2016.
One of Europe's leading authorities on arteriogenesis, with over 150 peer-reviewed publications and US and EU patents, he reviews for PureLift LAB how the evidence on electrical stimulation is read and where its limits lie.
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Medicube says the Booster Pro needs no special gel, FOREO recommends its SUPERCHARGED Serum 2.0 and says BEAR 2 must be used with a conductive serum, and ZIIP recommends its own gels, while any water-based, oil-free conductive layer carries the current.
This guide covers each device, such as:
- what Medicube recommends
- what FOREO recommends
- what ZIIP recommends
- what makes a gel or serum conductive
- what to avoid
and many more!
We make PureLift, a competing device, so every detail about other brands comes from their own pages and published reviews.
Key Points:
Medicube says no special gel is required for the Booster Pro and suggests a light serum or ampoule first in Booster mode.
FOREO recommends its SUPERCHARGED Serum 2.0 and says BEAR 2, like all microcurrent devices, must be used with a conductive serum.
ZIIP recommends its own Firm, Refresh, Glow and Clear gels.
Water and dissolved ions carry current, so water-based gels and serums conduct while oils and silicone-heavy creams do not.
Check each brand's warranty terms before switching to another brand's product.
At a glance
| Device | Brand recommendation | Other options |
|---|---|---|
| Medicube Age-R Booster Pro | No special gel required; light serum or ampoule in Booster mode | Your regular water-based serum |
| FOREO BEAR and BEAR 2 | FOREO SUPERCHARGED Serum 2.0 | A water-based conductive serum |
| ZIIP HALO | ZIIP Firm, Refresh, Glow or Clear gel | A water-based conductive gel |
Every figure comes from the brand's own website or listings, checked in October 2026. Prices change often, so confirm before you buy.
Medicube Booster Pro
Medicube says no special gel is required and you can use the device with your regular skincare. For Booster mode it suggests a light serum or ampoule first, then a richer cream or gel. Air Shot is used on clean, dry skin. See our Medicube modes guide.
FOREO BEAR and BEAR 2
FOREO recommends its SUPERCHARGED Serum 2.0 and says BEAR 2 must be used with a conductive serum. If you use another product, choose a water-based serum that stays wet for the whole session. See FOREO BEAR vs BEAR 2.
ZIIP HALO
ZIIP recommends its own gels and ships four with the HALO 2.0. See our ZIIP gels comparison.
What makes a gel or serum conductive
Water carries current when it contains dissolved ions such as salts. Hyaluronic acid gels and many water-based serums conduct well.
Oils, balms and silicone-heavy creams resist current. A simple test is in our conductive serum test.
What to avoid
Facial oils and oil-based serums under the device.
Thick silicone primers.
Strong acids or retinoids on irritated skin, since the session can make them feel stronger.
Ultrasound gel and aloe are common questions, covered in our gel vs serum vs aloe article.
If you want to avoid branded products
We make PureLift, so weigh this accordingly. Our devices run nanocurrent at level 1, microcurrent at level 2 and EMS from level 3 to 10 on one dial, publish their output at a stated load, up to 7 mA at 500 ohms on PureLift Face, and work with any water-based conductive serum.
Do not use any facial current device if you have a pacemaker or other implanted electronic device, if you are pregnant or if you have epilepsy, and skip broken or irritated skin. The full list is in our safety article.
Frequently asked questions
What gel do you use with Medicube Booster Pro
Medicube says no special gel is required. Use a light serum or ampoule in Booster mode and clean, dry skin for Air Shot.
What serum does FOREO recommend for BEAR
FOREO recommends its SUPERCHARGED Serum 2.0.
Can I use any serum with FOREO BEAR
FOREO says a conductive serum is required. A water-based serum that stays wet will carry the current. Check FOREO's warranty terms.
What gel is best for ZIIP HALO
ZIIP recommends its own Firm, Refresh, Glow or Clear gels.
Can I use oil with a microcurrent device
No. Oils resist current, so apply them after the session.
This article sits inside our full map of the category, where we set out all 33 devices we track, what each one carries and what each brand publishes: Nine Technologies on One Dial, What the Rest of the Market Actually Carries.