Do Microcurrent Devices Need Gel, or Will a Serum Do
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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Your device needs a wet, water-based layer every session; whether that layer has to be the brand's own gel depends entirely on which device you bought.
This article covers what actually decides the answer, such as:
- what happens if you use no conductor at all
- the brands that require their own and say so plainly
- the brands that accept any water-based serum
- whether a moisturiser, aloe or plain water will do
- what using the wrong product actually costs you
and many more!
Nobody should be paying $80 a bottle for physics that a $12 hyaluronic serum performs.
Key Points:
Running a microcurrent device on dry skin is uncomfortable and delivers the current unevenly, so some conductive layer is always needed.
NuFACE, FOREO and Skin Gym all state a conductor is required, and NuFACE's requirement appears in its FDA filing as well as its marketing.
PureLift devices work with any water-based serum you already own, which is a specification rather than a suggestion.
Plain water conducts but evaporates within a minute, so it fails on duration rather than on physics.
Oils, balms and silicone-heavy creams are poor conductors and produce hot spots rather than an even pass.
What happens with no conductor
Dry skin has high resistance, so the current struggles to spread and concentrates wherever contact is best, which is felt as pricking rather than pulling.
The probe also drags, which pulls at the skin and tempts you to press harder, and pressing does not increase delivered current.
Nothing dangerous happens on a consumer device, and the session simply becomes unpleasant and less effective.
So the question is never whether to use something, only what.
The brands that require their own
NuFACE lists a conductive gel primer under special requirements in its FDA submission, and its gel carries its own clearance, so the pairing is designed in.
FOREO states that BEAR 2 must be used with a conductive serum.
Skin Gym's FAQ says a conductive gel is required for proper conductivity and comfort.
Droplette will not physically accept anything except its own capsules, by the company's own statement.
With those devices, the running cost is part of the purchase and should go into your comparison before you buy.
The brands that do not
PureLift devices are specified to run on any water-based serum, and our own Activator Serum is one option rather than a requirement.
7E Wellness states on its own listing that its ReStore gel works with all microcurrent devices, which implies the reverse is also true.
Where the manufacturer is silent rather than explicit, the safe reading is that a plain water-based hydrating serum is fine, and that a warranty question is worth an email before you experiment.
Will a serum, moisturiser or aloe do
A water-based hydrating serum is the reliable answer, particularly hyaluronic acid or glycerin formulas.
Aloe gel conducts well and is what many estheticians used before the branded conductors existed, though it can dry faster than a humectant serum.
Most moisturisers are a grey area, since many are water-based underneath but too occlusive to conduct evenly.
Facial oils, balms and anything silicone-heavy are poor conductors and should not be underneath a session.
Plain water works for about a minute, which is not long enough for a three-minute pass.
What the wrong choice actually costs
An unevenly conducting layer reduces the charge that arrives, so you get less from the session than the dial suggests.
It also makes the session feel sharp, and a session that feels unpleasant is one people quietly stop doing.
We have written separately on what sharpness is actually telling you, because it is almost always contact rather than intensity.
Nothing is damaged by using the wrong product, so this is a question of results and comfort rather than safety.
The practical answer
Check your manufacturer's own wording first, since a required conductor is usually stated plainly.
If the choice is yours, use a water-based hydrating serum, applied generously enough that skin looks wet rather than dewy.
Test what you own with the two-minute check before buying anything.
And if you do want the brand's bottle, buy the largest size, since the per-ounce price typically falls by about two thirds.
This comparison 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.
Brand requirements checked on 21 September 2026 against each manufacturer's own published material and FDA filings where they exist.