Microcurrent Against Radiofrequency, Which Does What
Medically reviewed by
4 independent reviewers
Andrew Conrad Barile, kinésithérapeute, DPT
Doctorat en physiothérapie (DPT), physiothérapeute agréé (PT)
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Le Dr Andrew Conrad Barile est docteur en physiothérapie et PDG ainsi que fondateur de Xtreem Pulse LLC. Il a obtenu son doctorat en physiothérapie à Daemen College et possède plus de vingt ans d'expérience clinique et entrepreneuriale en physiothérapie pédiatrique, thérapie craniosacrale et innovation en dispositifs médicaux. Sa profonde connaissance de l'anatomie humaine, de la physiologie musculaire et des technologies thérapeutiques offre une approche scientifique précieuse pour le rajeunissement du visage et les solutions anti-âge.
Bertica M. Rubio, M.D.
Directeur Médical, Clinique de Médecine Régénérative Anti-âge | Médecin Certifié par le Conseil | École de Médecine de Dartmouth
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Le Dr Bertica M. Rubio est une médecin certifiée et directrice médicale de la clinique de médecine régénérative anti-âge à Redlands, en Californie. Elle a obtenu son Bachelor of Science à l'Université Loyola Marymount et son Doctorat en médecine à la Dartmouth Medical School (Geisel School of Medicine). Elle a effectué sa résidence en pédiatrie au UC Irvine Medical Center.
Forte de plusieurs décennies d'expérience clinique, le Dr Rubio est spécialisée en médecine de gestion du vieillissement, médecine régénérative, cicatrisation des plaies et thérapies par facteurs de croissance. Sa pratique intègre la science médicale fondée sur des preuves avec des traitements esthétiques et régénératifs avancés, aidant les patients à atteindre une santé optimale et une vitalité juvénile.
Le Dr Rubio est passionnée par l'éducation des patients sur la science derrière les soins de la peau, le rajeunissement du visage et les technologies non invasives comme l'EMS (stimulation électrique musculaire) pour le tonus facial. Ses articles pour PureLift LAB allient connaissances médicales rigoureuses et conseils pratiques pour obtenir des résultats réels et durables.
Daniel Grinberg, MD, FACS
Otolaryngologiste et chirurgien de la tête et du cou certifié par le conseil | Membre, American College of Surgeons | Professeur clinique adjoint, Mount Sinai School of Medicine
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Daniel Grinberg, MD, FACS, est un oto-rhino-laryngologiste certifié par le conseil et chirurgien de la tête et du cou chez ENT and Allergy Associates à West Nyack, NY. Il a obtenu son diplôme de médecine au Columbia University College of Physicians and Surgeons, a effectué sa résidence en oto-rhino-laryngologie au New York University Medical Center, et est professeur clinique adjoint à la Mount Sinai School of Medicine. Il est membre de l'American College of Surgeons et de l'American Academy of Otolaryngology.
La perspective chirurgicale de la tête et du cou du Dr Grinberg offre aux lecteurs de PureLift LAB une vision clinique élargie — reliant la pratique EMS à domicile à l'anatomie médicale sous-jacente avec la même rigueur scientifique que celle que nous appliquons à chaque spécification d'appareil.
Prof. Dr med Ivo Buschmann
Président d'Angiologie, Hochschule Medizinische Brandenburg | Directeur de clinique, Clinique universitaire d'angiologie, Hôpital universitaire de Brandebourg | Ancien consultant principal, Charité Universitätsmedizin Berlin
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Le Prof. Dr. med. Ivo Buschmann est titulaire de la chaire d'angiologie à la Medizinische Hochschule Brandenburg Theodor Fontane (MHB) et directeur de la clinique universitaire d'angiologie à l'hôpital universitaire de Brandebourg. Il a effectué sa formation médicale à l'Université de Hambourg, a été boursier de la Société Max-Planck à l'Institut Max-Planck de recherche sur le cœur et les poumons, et a occupé des postes de consultant principal à la Charité Universitätsmedizin Berlin Campus Virchow avant d'être nommé titulaire de la chaire à la MHB en 2016.
Le Prof. Buschmann est l'une des principales autorités européennes en arteriogenèse — la croissance et le remodelage des vaisseaux sanguins induits par le flux — avec plus de 150 publications évaluées par des pairs et plusieurs brevets américains et européens sur des dispositifs stimulant la croissance des vaisseaux collatéraux par une thérapie contrôlée du taux de cisaillement. Ses recherches relient la stimulation mécanique et électrique à l'adaptation vasculaire, à la microcirculation et à la perfusion tissulaire.
Les contributions du Prof. Buschmann apportent aux lecteurs de PureLift LAB une perspective en biologie vasculaire qui complète notre expertise clinique, en physiothérapie et en anatomie chirurgicale — expliquant comment la stimulation EMS engage non seulement les muscles faciaux mais aussi la microcirculation qui les alimente, et pourquoi une administration intelligente est aussi importante au niveau du flux sanguin qu'à celui de la contraction musculaire.
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Radiofrequency heats the dermis to trigger a collagen response over weeks, and microcurrent passes a current that works at cell level without heating anything, so they address different complaints.
This article compares the two on what decides the result you actually see, such as:
- what each one physically does to tissue
- why 42 degrees is the number that matters in radiofrequency
- what the published figures look like on each side
- session length, course length and cost compared
- which to buy for which complaint, and when to buy both
and many more!
We make one of these two technologies and not the other, which shapes what follows and is stated plainly throughout.
Key Points:
Radiofrequency passes current through tissue, meets resistance, and produces heat, with home devices capping at about 42 to 43 degrees Celsius.
Collagen denatures and contracts at roughly 60 to 65 degrees, so home radiofrequency is a slow remodelling stimulus rather than an immediate tightening.
Microcurrent passes a far smaller current that does not heat tissue, working at cell level instead.
Above the motor threshold, in the milliamp range, current contracts muscle, which is a third thing neither of the above describes.
NEWA's De Novo publishes 1 MHz, up to 10 W and a 42 degree cutoff, the clearest disclosure in the home radiofrequency category.
What radiofrequency actually does
Radiofrequency current passes through tissue, the tissue resists it, and that resistance produces heat. The target is the collagen in the dermis.
Home devices cap the temperature with a thermal sensor, typically at 42 to 43 degrees Celsius. Collagen denatures and contracts at roughly 60 to 65 degrees, which is why a home device is not shortening collagen on the spot.
What it is doing instead is applying a controlled sub-injury heat stress that prompts fibroblasts to produce new collagen over the following weeks, which is why these treatments run in courses and report results at eight to twelve weeks.
The FDA product code for these devices describes radiofrequency coagulation for wrinkle reduction, which tells you plainly what regulators consider the mechanism to be.
What microcurrent does
Microcurrent runs in the hundreds of microamps, far too low to heat tissue meaningfully or to depolarise a motor nerve.
Its claimed effects are cellular, and the evidence is real but modest. Saniee and colleagues examined microcurrent effects on facial skin, and the reported benefits run to texture and appearance.
So microcurrent and radiofrequency are not competing to do the same job by different routes. Radiofrequency is trying to change the structural protein content of the dermis; microcurrent is acting on cells without heat.
Neither of the two contracts a muscle, which is worth stating because both categories borrow lifting language freely.
The third thing, which is neither
Above roughly one milliamp with an appropriate pulse, current crosses the motor threshold and the muscle contracts.
Kavanagh and colleagues measured an 18.6 percent increase in cheek muscle thickness across 108 women over twelve weeks at that level, which is a change in the muscle rather than in the skin or its collagen.
That is our category, and it is a different answer again from either of the two in this comparison.
If you find yourself deciding between radiofrequency and microcurrent because your face has changed shape, the honest answer is that neither is aimed at your problem.
What each side publishes
On the radiofrequency side, NEWA holds a De Novo authorisation whose grant publishes 1 MHz, up to 10 W and a thermal cutoff at 42 degrees. That is the most complete disclosure in the home category and deserves credit.
TriPollar publishes no frequency, wattage or temperature cap for its home device, and Silk'n publishes only a 43 degree cap with no frequency or power.
On the microcurrent side, FOREO publishes 680 microamps, ZIIP 309, Therabody 500 and 7E 350 at a stated 500 ohm load, while NuFACE's figures appear only in filings.
Across both categories, most brands publish a feature list rather than a specification, which we have set out in the full table of 33 devices.
Practical differences
Radiofrequency sessions run longer, typically nine to fifteen minutes, and the protocols are demanding: NEWA's cleared protocol is four minutes across six facial areas, five times weekly for four weeks.
Radiofrequency needs a couplant gel for heat transfer, which is a genuine technical requirement rather than a commercial one, at $15.99 to $53 a bottle depending on brand.
Radiofrequency also carries the longer contraindication list, since it generates real heat: implants, fillers, pacemakers, recent procedures and heat-sensitive conditions all appear.
Microcurrent sessions are shorter, the conductor requirement is often avoidable, and the contraindication list is shorter though still real.
Which to buy
Pinch the skin on your cheek. If it feels thin and settles slowly, your complaint is skin quality and radiofrequency addresses it more directly than microcurrent does.
If the surface is holding but the shape has changed, that is contour, and neither of these two is the answer; muscle-level work is.
If your complaint is dullness, texture and looking tired, microcurrent is a reasonable and cheaper purchase.
They stack without conflict. If you own both, run them on separate days rather than stacking heat and current in one session, and follow each manufacturer's own guidance on spacing.
We do not make a radiofrequency device and have no plans to, so if that is what your skin needs, buy one from someone else. We have written about the devices we do not compete with for exactly this reason.
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.