Very Promising Vielight Long-COVID Study

Another week, another light therapy newsletter! A groundbreaking new long-COVID study was just published in 2026, using a Vielight device. We'll break that study down below.

As always, we've also added all of our new content below! And an interesting surprise - some polls in our Facebook group!

New Vielight Long-COVID Study From 2026

So this long COVID and Vielight study was recently published in 2026. Long-COVID gives many people brain fog, low energy, and lots of other symptoms, and basically makes your life a lot more difficult and your health a lot worse.

Here's what the researchers describe about the study setup:

"This randomized, double-blind, sham-controlled pilot trial in the USA [...] enrolled 43 adults (18–65 years) with [Post-COVID19 Condition] cognitive symptoms ≥12 weeks post-infection. Participants were randomized 1:1, stratified by age (<45 vs ≥ 45 years), using computer-generated assignment to 8 weeks of daily 20-min itPBM, 6 days per week, with the Vielight Neuro RX Gamma device or sham, targeting the brain's default mode network, followed by 4 weeks of observation"

So, there were 2 groups in this study, 1 placebo group that didn't receive therapy and 1 intervention group that received the light therapy. The Vielight Neuro RX Gamma device was used in this study, which you can view here (Figure 1):

Observe that light is not just emitted at the brain, but also up the nose, where the bloodflow to the brain moves around. Then, different brain areas such as the "Prefrontal Cortex" (the "CEO of your brain"), Cerebellum (responsibile for movement, temperature, etc), and other areas are targeted.

The Vielight Neuro Gamma uses 810 nm light, with 40 Hz pulsing, meaning that the light is activated/deactivated 40 times per second.

Many different cognitive tasks were assessed during the study, which are well described in Table 1:

And here's the final outcome of the study, so the difference between the intervention group, which received the real light therapy, and the placebo group which received treatment with a device that wasn't activated:

"This pilot randomized controlled trial provides encouraging evidence that home-based intranasal and transcranial photobiomodulation (itPBM) is a safe and feasible intervention for cognitive impairment in long COVID. Active itPBM improved composite cognitive scores more than sham (p = 0.088), with significant gains in participants <45 years (p = 0.028), likely due to enhanced neuroplasticity, as 40 Hz gamma oscillations strengthen synaptic connectivity in neural networks. Older adults may require higher itPBM doses to achieve similar effects."

Younger participants who received the active treatment tended to do better in this study. Nevertheless, these results are extremely hopeful as there currently isn't a great treatment for long-COVID, and the brain fog that often comes with it. We actually get lots of questions and discussion around this topic in our Facebook group that has more than 30,000 people in it right now.

The Vielight intervention was given 6 days a week, for 8 weeks. So this is a routine that you can easily replicate from the comfort of your home if you're affected by long-COVID. And, especially if you're of younger age, we would recommend potentially investing in such a device, with the gains that can be made.

Of course, we need more research here to confirm these findings. Overall though, there have been good results with COVID so far, in many different studies, which I've described here:

Also, if you want to get a Vielight product, or aren't convinced yet, I'm very much aware that it's difficult to make a choice. There's a lot of science around Vielight now, for brain health in particular, and hence I recommend reading up.

The devices aren't cheap either, so most people will want to do some reading before making a decision. Curious about the Vielight? Check our science breakdown of the Vielight studies below:

Also check the differences between different Vielight devices and more here:

Weekly Poll On The Best Red Light Therapy Device

Alex just posted a poll on what red light therapy device you'd set up if you had to make a choice:

You can participate in the poll HERE. Also, you can see all of the comments in the thread as well by joining our group and getting into the conversation!

Then there's a second poll, on whether you'd want a red light therapy bed at home - with 79 votes as of the moment of writing:

If you'd like to vote in the poll, join our FB group and go HERE. You can also comment on your vote and on the poll.

Here Are Our Latest Light Therapy Insiders' Articles:

Every single article that we've published recently - you can find the videos in the article itself:

Best Red Light Therapy Panel Under $500? (3 Options Tested) - Times are tough, and people may need a budget option. This is why Alex just released a new video on the topic!
Best Device For Acne: Why You Need Blue Light - Honestly, if you don't use the correct blue light wavelengths, you don't treat acne properly, even if you use red light therapy. Bart breaks down all of the science in this video
Red Light Therapy News: New Devices, Brain Study & Olympic Athletes Using It - the latest news, with Olympic athletes using red light therapy, some interesting new devices, new science, Q&A, and much more!
Red Light Therapy Markets: Massive Growth On The Horizon? - the red light therapy space is growing massively. Here are some numbers from different sources, and how to envision all of it!
Do Mirrors Increase Red Light Therapy Power Output?? - Here's an experiment, with the spectrometer, by Alex, on mirrors and red light therapy. We get a lot of questions about this!

Also, Check Out Some Of Our Other Content:

Below you'll find some of our best content that you shouldn't miss:

Light Therapy Advanced Science Course (Just Launched!):

Join Bart's 100% free advanced science light therapy course above, where he takes deep dives into many different topics, such as mechanisms, neurology (Alzheimer's, Parkinson's, etc), exercise recovery, skin beauty & rejuvenation, and much more.

Some of the topics are only published in that course, such as UV light risks and benefits, addiction, anxiety, depression, and more. So join HERE!