For any dedicated athlete—whether you’re a marathoner chasing a PR or a gym rat grinding out heavy sets—pain is an uninvited but frequent guest. We’ve all been there: that nagging ache in the Achilles after a long run, or the sharp pull of tendonitis in the elbow that makes every push-up feel like a chore. Traditionally, the answer was "Rest, Ice, Compression, Elevation" (RICE) or expensive sessions at a sports clinic.

But what if you could heal your body while brewing your morning coffee or answering emails?

In his latest review, fitness expert Matt B dives into the PRUNGO FluxGo Red Light Therapy (RLT) Module, a device that promises to bring clinical-grade recovery into the palm of your hand—and more importantly, onto your moving body. Is it just another fitness fad, or is there hard science backing this glowing red tech? Let's get into the nitty-gritty.

What Exactly is the PRUNGO FluxGo?

The PRUNGO FluxGo is a wearable Red Light Therapy module designed specifically for those who lead active lifestyles. Unlike the massive RLT panels you might see in "biohacking" dens or high-end spas, the FluxGo is modular, portable, and remarkably discreet.

Matt B highlights that the core appeal of the PRUNGO system is its portability. "It's like having the power of a recovery clinic that you can just strap to your leg and go about your day," he notes. The system typically comes in a sleek, hardshell charging case that keeps the modules powered up and ready to toss into a gym bag.

The Science of "Photobiomodulation": How It Works

To understand why the PRUNGO FluxGo is effective, we have to look past the "cool red glow" and into the cellular level. The professional term for this is Photobiomodulation (PBM).

The Mitochondrial Powerhouse and ATP

Our cells contain mitochondria, often called the "powerhouses" of the cell. When our bodies are injured or overworked, these powerhouses can become sluggish. Red and near-infrared light act as a fuel source for these mitochondria. Specifically, light photons are absorbed by an enzyme called Cytochrome C Oxidase.

This absorption triggers the production of Adenosine Triphosphate (ATP)—the pure energy currency of our cells. By boosting ATP, the PRUNGO FluxGo essentially gives your cells the "overtime pay" they need to repair tissues, reduce inflammation, and flush out metabolic waste faster than they could on their own.

Dual Wavelengths: 650nm vs. 850nm

Not all light is created equal. The PRUNGO FluxGo stands out because it doesn't just use one type of light; it uses a scientifically optimized combination:

1. 650nm (Red Light): This wavelength is absorbed primarily by the skin (epidermis and dermis). It’s fantastic for surface-level healing, skin health, and collagen production.

2. 850nm (Near-Infrared Polarized Light): This is the "heavy lifter" for athletes. It penetrates deep—through subcutaneous tissue, into the muscles, and even down to the bone. This is what targets joint pain, deep muscle tears, and chronic inflammation.

PRUNGO is unique in that it combines Class 3R lasers with polarized filters and high-intensity LEDs, ensuring the light isn't just bright, but concentrated enough to actually reach the tissues that need it most.

Design and Usability: A Device Built for Real Life

Matt B’s review emphasizes that the best recovery tool is the one you actually use. RLT panels require you to stand naked in front of them for 20 minutes—a tall order for a busy parent or professional.

The "AirPods" of Recovery

The FluxGo modules come in a portable charging case that feels premium. Much like modern wireless earbuds, the case itself acts as a battery, charging the modules via USB-C. Whether you need one module for a small spot like a wrist or three modules linked together for your lower back, the system adapts.

Three Tailored Modes

The device features an intuitive interface with three distinct settings:

• MILD (8 Minutes): Perfect for daily maintenance or a "pre-run" warm-up to increase local blood flow.

• MID (15 Minutes): Optimized for post-workout recovery and general muscle soreness.

• STRONG (20 Minutes): Matt B’s personal favorite. This is designed for stubborn, deep-seated pain and dense muscle groups.

Real-World Results: Tackling Tendonitis

The most compelling part of Matt B’s experience wasn’t related to running, but to a common gym injury: elbow tendonitis.

"I've been dealing with this ache from pull-downs and push-ups," Matt shares. After one week of consistent use on the "Strong" setting—applying modules to both sides of the elbow—the pain subsided significantly.

The "hook" for many athletes will be this: Matt didn't have to stop training. Because the FluxGo is wearable, he could treat the injury while working or relaxing, and the cumulative effect of the light therapy allowed his body to repair the tendon while he continued his fitness routine. This "non-invasive" approach is a game-changer for those who find the "rest only" advice frustrating.

Beyond the Muscle: The Holistic Benefits of RLT

While Matt B focuses on athletic recovery, the implications of the PRUNGO FluxGo extend into broader wellness categories. Scientific literature suggests that consistent PBM therapy can lead to:

• Mood Elevation: By regulating stress hormones and potentially impacting serotonin levels.

• Skin Rejuvenation: Promoting collagen production to reduce fine lines and wrinkles (though Matt jokes he won't be using it for "smile lines" just yet).

• Immune Support: Stimulating the production of white blood cells.

• Wound Healing: Accelerating the closure of surface-level cuts or abrasions.

Why "FDA Cleared" is a Vital Distinction

In the world of health tech, marketing terms can be slippery. Matt B makes a crucial point: the PRUNGO FluxGo is FDA Cleared.

What does this mean? It means the FDA has reviewed the device and determined it is "substantially equivalent" to another legally marketed device that is proven safe. While the FDA doesn't "approve" the effectiveness of RLT for every specific claim, "Cleared" status is the gold standard for safety in this category. You aren't just strapping a random laser to your body; you're using a regulated piece of medical-grade technology.

Conclusion: Is the PRUNGO FluxGo Worth It?

If you are a casual exerciser who rarely feels a sore muscle, the FluxGo might be overkill. However, if you are a "master's athlete," a high-volume runner, or someone dealing with chronic "itis" (tendonitis, plantar fasciitis, etc.), the PRUNGO FluxGo represents a significant shift in recovery philosophy.

It moves recovery from a "destination" (the clinic) to a "habit" (your living room). As Matt B concludes, "Consistency is key." The fact that you can wear this while walking the dog or drinking a smoothie means you’re far more likely to stick to the protocol than you would be with any other device.

With a portable design, dual-wavelength precision, and the "Matt B seal of approval" for treating stubborn tendonitis, the FluxGo is easily one of the most practical biohacking tools on the market today.

FAQ: Frequently Asked Questions about Red Light Therapy

Q1: Does Red Light Therapy hurt?

Not at all. Unlike "hot" lasers used in surgery, RLT (Photobiomodulation) is a cold therapy. You might feel a slight, pleasant warmth due to increased blood circulation in the area, but there is no pain or burning sensation.

Q2: How often should I use the PRUNGO FluxGo?

For the best results, PRUNGO recommends using the device 1–2 times per day on the affected area. Because the effects are cumulative, consistency over a week or two is much more effective than a single long session.

Q3: Can I look directly at the light?

It is generally recommended not to stare directly into the LEDs or lasers, much like you wouldn't stare at the sun. While RLT is used in some cases for eye health, it should only be done under specific medical guidance. For muscle recovery, just strap it on and let it work!

Q4: Is there a difference between a cheap red LED strip and PRUNGO?

Yes, a massive one. Cheap LED strips often don't output the specific wavelengths (650nm and 850nm) required to trigger a cellular response. Furthermore, they lack the power density (irradiance) to penetrate past the very top layer of your skin.

Q5: Can I use it over my clothes?

For the 650nm (red light) to be effective, it needs direct skin contact. While the 850nm (near-infrared) can penetrate some thin fabrics, you will get the best results by applying the PRUNGO modules directly to the skin.