PEMF mats, PEMF loops and "energy" devices like the BioCharger are some of the fastest-growing products in the biohacking world. They're also the category where marketing runs furthest ahead of the research. We'd rather you buy with clear eyes, so here's an honest breakdown.
Key takeaways
- PEMF (pulsed electromagnetic field) therapy has real clinical history: certain PEMF bone growth stimulators are FDA-approved medical devices for fractures that fail to heal.
- A 2018 meta-analysis of 12 trials found PEMF reduced pain and improved function in knee and hand osteoarthritis compared with sham, with no extra side effects.
- Consumer wellness mats and devices vary widely in strength and design, and most haven't been tested in published trials themselves.
- As of this writing, we're not aware of any published peer-reviewed controlled trials on the BioCharger itself. It's best sold as a wellness experience, not a treatment.
What PEMF is
PEMF devices use coils to produce pulsing magnetic fields that pass through the body. The pulses induce tiny electrical currents in tissue. Medical PEMF devices have been used for decades as bone growth stimulators for "nonunion" fractures, which is the most established use. Today you'll also find PEMF in full-body mats, localized pads and loops, and high-intensity units used in clinics and studios.
What the research says
The strongest consumer-relevant evidence is for osteoarthritis pain. A 2018 meta-analysis in BMJ Open by Zhenyu Wu and colleagues pooled 12 randomized controlled trials. Compared with sham devices, PEMF produced more pain relief and better physical function in knee and hand osteoarthritis (but not neck osteoarthritis), and adverse events were no different from sham. Interestingly, sessions of 30 minutes or less did better than longer ones [1].
That's encouraging, but notice what it isn't: it's not evidence for "cellular recharging," detox, or the long list of benefits some devices claim. Results from medical devices at specific settings don't automatically apply to every consumer mat on the market.
About the BioCharger
The BioCharger is a tabletop device that combines light from gas-filled tubes, a range of frequencies, voltage and PEMF in programmed "recipes." It's a striking piece of equipment, and many users describe sessions as relaxing and energizing. Several recovery and longevity studios feature it.
Here's the honest part: as of this writing, we have not found peer-reviewed, controlled clinical trials of the BioCharger itself, and skeptics have criticized its marketing claims. If you offer or buy one, frame it as a wellness experience people enjoy, avoid health claims, and don't promise outcomes. That protects your customers and your business.
For a deeper look at how sessions work, safety screening and questions to ask before buying, read our BioCharger NG guide.
How to evaluate any PEMF or energy device
- Ask for the field strength (in gauss or tesla) and pulse frequency, and how they were measured.
- Ask for research on the device itself, not on "PEMF in general."
- Check the regulatory status. Most wellness PEMF products are not FDA-cleared to treat any condition.
- Be wary of disease claims. Legitimate brands don't promise to cure anything.
Who should avoid PEMF
Manufacturers generally advise against PEMF for people with pacemakers or other implanted electronic devices, and during pregnancy. Check with a doctor first if you have any medical condition.
What this means for gyms and studios
PEMF mats are quiet, easy to staff and pair well with red light or compression in a "recovery lounge." Energy devices like the BioCharger can be a memorable signature experience for longevity-focused studios. In both cases, honest positioning builds trust. See our PEMF and energy devices guide or ask us for a referral.
References
- Wu Z, Ding X, Lei G, et al. Efficacy and safety of the pulsed electromagnetic field in osteoarthritis: a meta-analysis. BMJ Open. 2018;8(12):e022879. doi:10.1136/bmjopen-2018-022879
The information on this site is for general education and is not medical advice. Talk with your doctor before starting heat, cold, light, pressure, float, PEMF or vibration therapy, especially if you are pregnant or have a medical condition. We may earn a commission when you buy through our links. Learn more.