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Quick Take

Yes, according to Spark Biomedical clinical trial results, women using transcutaneous auricular neurostimulation (tAN) experienced an average 55% reduction in menstrual blood loss and a 20% shorter period duration. This gentle, wearable stimulation supports your body's natural clotting process and helps rebalance your nervous system—all without drugs or hormones.

A Personal Note

Now that I’m in menopause, I've lived through just about every version of a period—short and predictable, long and heavy, and everything in between. Like so many women, I’ve asked myself and anyone who would listen:

 Isn’t there a better way?
Why isn’t anyone working on a solution? 
Why is there a cure for (insert men’s health challenge here) and nothing for women?

Those questions stuck with me. And they’re some of the reasons I’m so passionate about bringing science-backed solutions like OhmBody into the conversation and advancing options for women. What once felt like wishful thinking, having a lighter, shorter period, is finally backed by real evidence.

— Jackie Powell
CMO, Spark Biomedical

Why Some Periods Last Longer Than Others

What any woman who menstruates knows is, your period isn't a simple on-off switch. What we may not all know is, it involves a combination of hormones, blood vessels, inflammation, and your nervous system all working together in harmony. Typically, menstrual bleeding is controlled by your body's hemostasis system:

  • Blood vessels constrict
  • Platelets activate
  • Clots form to stabilize the shedding uterine lining

When this process is delayed, due to inflammation, hormone imbalance, or nervous system dysregulation, your period can linger longer than it should. This can mean extra heavy days, longer bleeding times, lingering spotting, and feeling like your cycle is always getting in the way.

How Neurostimulation Can Help

This is where transcutaneous auricular neurostimulation (tAN) makes a difference. OhmBody uses tAN to send gentle pulses to key nerves branches around your ear (specifically the vagus and trigeminal nerves) to help:

  • Prime your platelets: The vagus nerve connects to your spleen, where platelets are stored. Stimulation helps "ready" those platelets, so they respond more efficiently and support healthy clotting.
  • Balance your nervous system: During your period, your body often shifts into a heightened "fight or flight" state. OhmBody can help reset that balance, encouraging a calming "rest and digest" tone that supports circulation, healing, and clot formation.

The result? Your body can shed the uterine lining more efficiently, without dragging things out.

What the Research Shows

Spark Biomedical (OhmBody parent company) Clinical Trial Results

  • 55% average reduction in menstrual blood loss(1)
  • 20% average reduction in period duration(1)
  • Fewer heavy days and improved quality of life reported by participants
  • These results were consistent across participants with and without known menstrual disorders.

Preclinical Support

  • In swine models, vagus nerve stimulation cut bleeding time by ~40%.(2)
  • In hemophilia A mice, stimulation primed platelets and reduced bleeding.(3)

Where OhmBody Fits In

OhmBody is a menstrual wellness device that uses this same style of ear-based, vagus and trigeminal neurostimulation. It’s non-invasive, hormone-free, drug-free, and designed to be part of your real-life cycle routine.

How to use it

  • Start in the late luteal phase (around PMS) or on day 1-3 of your period
  • Continue through your heavier or more difficult days
  • Wear it for a minimum of two hours per session
  • Use it consistently each cycle for best results

OhmBody is about supporting your cycle, not suppressing it—and for many women, that makes all the difference.

 

Myth vs. Fact
Myth: You can’t change how long your period lasts. Fact: Clinical trial results showed a 20% average reduction in period length using transcutaneous auricular neurostimulation.
Myth: Only hormones or medication can influence menstrual flow. Fact: OhmBody works through the nervous system, no drugs or hormones required.
Myth: If I have heavy periods, that’s just my normal. Fact: Heavy periods affect 1 in 3 women, but that doesn’t mean they’re untreatable.
Myth: This is probably just placebo.

Fact: Results were measured using the validated PBAC (Pictorial Blood Loss Assessment Chart), not just feelings. And pre-clinical testing shows similar reduction (no placebo).

All study participants collected outcomes during a baseline cycle (no device use), and compared menstrual outcomes to the next month cycle, to which participants used the device every day during menstruation. Each participant served as their control to demonstrate treatment effect. 

Why This Matters

Having a shorter, lighter period isn’t just about convenience. It can mean:

  • Fewer surprises and fewer leaks
  • More energy during your cycle
  • Less time stuck planning around your period
  • Less iron loss (and less monthly fatigue)

Most of all, it’s about feeling more like yourself, no matter what day of the month it is.

 

Frequently Asked Questions
Q: Can OhmBody really make my period shorter? A: The Spark Biomedical clinical trial showed an average 20% reduction in period length using this style of stimulation. Your experience may vary, but the science is promising.
Q: Is it safe? A: OhmBody is a general wellness device and was well-tolerated in clinical trials. No systemic side effects were reported.
Q: Does it work for everyone? A: Every body is different. Conditions like fibroids, bleeding disorders, or certain IUDs may influence your results. But OhmBody comes with a 60-day money back guarantee. So, you can try it for a cycle and decide for yourself, risk-free.
Q: Is it FDA approved? A: OhmBody is not an FDA-approved medical treatment. It is a wellness device designed to support menstrual comfort naturally.

 

Citations

  1. ClinicalTrials.gov IDs: NCT06064851, NCT06814028
  2. Czura, C. J., Schultz, A., Kaipel, M., Khadem, A., Huston, J. M., Pavlov, V. A., ... & Tracey, K. J. (2010). Vagus nerve stimulation regulates hemostasis in swine. Shock, 33(6), 608-613.
  3. Bravo-Iñiguez, C.E., Fritz, J.R., Shukla, S. et al. Vagus nerve stimulation primes platelets and reduces bleeding in hemophilia A male mice. Nat Commun 14, 3122 (2023). https://doi.org/10.1038/s41467-023-38505-6.

OhmBody is a general wellness device. It is not intended to diagnose, treat, cure, or prevent any disease or medical condition. Individual experiences may vary.

88% of women experienced improved menstrual comfort with OhmBody.
“It’s like someone flipped a switch — the cramps were just gone.”
71% felt more emotionally stable with OhmBody.
“My pain was just not there. I felt back to normal and functional during my period.”
© 2025 OhmBody - 1540 Keller Pkwy, Suite 108, Box 185, Keller, TX 76248. All rights reserved. 

OhmBody is a wellness device designed to support menstrual health and comfort. Individual results may vary. This product is not intended to diagnose, treat, cure, or prevent any disease. Consult your healthcare provider before use if you have any medical conditions or concerns.