Alex Fergus - Light Therapy Insiders

Alex Fergus
  • 5.0 (2)
  • HEALTH & FITNESS
  • MONTHLY SERIES

 My name is Alex Fergus, and I'm a health and technology geek providing in-depth, independent product reviews on the latest red light therapy devices. With over seven years of experience studying light therapy and having used and tested dozens of hundreds of light therapy products, you can be sure that I'll have a video to help you with your educational or product-buying needs. Test, review, compare, and study all things Red Light Therapy.Whether you're seeking out the best Red Light Body Panel or an LED Mask or simply trying to learn more about the complexities of Red Light, my YouTube channel has videos for you.   https://www.youtube.com/@AlexFergusdotcom  I hope you enjoy and find my podcasts beneficial!Alex

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  1. EPISODE 1

    Red Light Therapy Wavelengths & Penetration

    Send us a text How deep does red light therapy actually penetrate — and are we all underdosing? In this episode, I’m joined by Tom Kerber from SunPowerLED, a veteran electronics designer with decades of experience in high-power LED systems and photobiomodulation. We break down the real-world physics of wavelength, power density, treatment area, and heat — and why many “rules” around dosing may be based on laser research that doesn’t translate well to LEDs. If you’ve ever wondered whether 660 vs 810 vs 1050 nm truly matters (and why bigger treatment areas often drive better results), this is the deep technical dive you’ve been waiting for. Show Notes In this technical episode of the Light Therapy Insiders Podcast, I interview Tom Kerber, founder of SunPowerLED, about the most misunderstood topic in photobiomodulation: dosing and penetration. Tom shares his decades of experimentation, including tissue-penetration tests using stacked pork tissue, comparisons between lasers and LEDs, and the reasons the treatment area can significantly affect the amount of light reaching deeper structures. We also discuss thermal safety, near-infrared versus far-infrared penetration, and why higher doses may still be safe with LEDs when heat is adequately managed. Key Topics             Tom’s background in high-power electronics + photodynamic therapy shapes his approach to PBM dosing and penetration.Lasers travel straight in the air, but once they hit tissue, they scatter — penetration becomes a “bubble,” not a straight beam.Wavelength matters: green barely penetrates, red penetrates more, and near-infrared (810–1050 nm) penetrates deepest.Treatment area impacts depth: larger illuminated regions (at the same power density) can drive more light through tissue, up to a limit.Distance reduces deep benefits — standing far from a panel may help the skin, but deep tissue requires sufficient power density, area, and wavelength.Heat risk depends on wavelength, circulation, and skin tone — near-infrared spreads energy deeper and is often better tolerated.Near-infrared penetrates; far-infrared (>1350 nm) primarily heats the surface (still useful, but not deep penetration).LED dosing may plateau rather than decline — Tom argues that laser hot spots primarily drive the classic biphasic curve.Tom shares real-world examples (ribs, shoulder, lungs) where higher/longer LED exposure appeared to support recovery.A “4 J/cm² max” dosing limit can be misleading because many studies are from animal models and don’t scale well to human joints.  Thanks for listening! Disclaimer: Information shared is not medical advice. For the latest discounts, please visit my website: https://www.lighttherapyinsiders.com/red-light-therapy-discount-codes-deals-recommendations/ · Check out my YouTube Channel for product reviews and all things red light therapy! · Check out my website for research articles, reviews, and more on light therapy · Join my Facebook group with almost 10K members; it's an interactive group sharing their experiences. · Follow us on Instagram and TikTok.

    1h 32m

  2. EPISODE 2

    Kineon Move Plus 2.0 Big Upgrade Explained

    Send us a text Alex sits down with Tom Sanderson, co-founder of Kineon, to talk through what’s new at the company — including the upcoming Move Plus 2.0, Kineon’s new modular roadmap (including Heel), and why the future of red light therapy may be heading toward app control, smarter targeting, and sensor-driven feedback. Tom also shares Kineon’s broader vision for 2026 and beyond, including early prototypes of gut-focused wearables and potential technologies that could eventually help quantify changes in the body before and after a session.  Show Notes In this conversation, Alex and Tom cover: Kineon’s updated branding + internal restructuring, with a bigger focus on long-term product strategy and science-backed designThe upcoming Move Plus 2.0 redesign, including a new LED display, improved usability, and updated casingA new quick-release strap system, plus an improved travel case and accessories, designed to improve fit and comfortHow Kineon is thinking about modular red light therapy devices, including early prototypes of their upcoming Heel lineWhy customer feedback (like beeping volume and haptic intensity) is shaping the next generation of wearable devicesA preview of future use cases, including gut-focused wraps, dentistry/oral pain applications, and women’s health-focused versionsWhere Kineon is heading next with app integration, sensor feedback, and a longer-term roadmap toward smarter “closed loop” therapyBroader trends in the industry — including the move toward more targeted treatment, better dosing education, and more intelligent device designThanks for listening! Disclaimer: Information shared is not medical advice. For the latest discounts, please visit my website: https://www.lighttherapyinsiders.com/red-light-therapy-discount-codes-deals-recommendations/ · Check out my YouTube Channel for product reviews and all things red light therapy! · Check out my website for research articles, reviews, and more on light therapy · Join my Facebook group with almost 10K members; it's an interactive group sharing their experiences. · Follow us on Instagram and TikTok.

    27 min

  3. EPISODE 3

    Red Light Therapy For Cognitive Performance EXCITING New Science

    Send us a text 🎙️ Episode Overview In this episode of Alex Fergus – Light Therapy Insiders, Bart Wolbers sits down with Sarah Turner, neuroscientist and founder of SARAH Thrive, to explore how red and near‑infrared light therapy can be used not just to manage symptoms—but to elevate cognition, gut health, mood, and overall human potential. Rather than focusing solely on illness, Sarah makes a compelling case for thriving, discussing how strengthening mitochondria, reducing inflammation, and supporting the gut–brain axis may unlock higher levels of brain performance and resilience. 🔑 Key Topics Discussed Thriving vs. Surviving Why modern health culture sets the bar too low—and how light therapy may help people move beyond “symptom‑free” toward peak cognitive and emotional performance. Sarah Turner’s Background From pharmaceutical drug‑delivery devices to nutritional medicine, clinical neuroscience, and biohacking—and why photobiomodulation sits at the intersection of orthodox and alternative medicine. The SARAH System Explained (Brain + Gut) An overview of the SARAH headband and gut panel, including: Targeting the prefrontal cortex and cerebellumWhy physical contact and pressure matter for brain light deliveryVisible red + near‑infrared wavelengths (630, 850, 940, 1070 nm)Pulsing Frequencies & Brain States How different pulse rates may influence calm, focus, memory, and meditation: 7.8 Hz (alpha / Schumann resonance)40 Hz (gamma, cognition & neurodegeneration research)100 Hz (meditation and altered states)Real‑World Outcomes & User Feedback Insights from early users, including improvements in: Sleep quality and deep sleep percentageBrain fog, mood, and resilienceDigestive comfort and gut healthThe Gut–Brain Connection Why Sarah calls the gut the “first brain,” including: Neurotransmitter production in the gutVagus nerve signalingInflammation, microbiome health, and cognitionEmerging science of photobiomics (light + bacteria)How Red Light May Enhance Cognition Key proposed mechanisms: Reduced neuroinflammationIncreased blood flow via nitric oxide releaseHigher ATP production in neuronsImproved waste clearance and glymphatic drainage during sleepSleep, HRV & Biohacker Metrics What users tracking Oura Ring, WHOOP, Apple Health, and Garmin data are seeing—including temporary HRV dips followed by long‑term gains. Consistency, Dosing & Hormetic Stress Why light therapy works more like exercise than medicati Thanks for listening! Disclaimer: Information shared is not medical advice. For the latest discounts, please visit my website: https://www.lighttherapyinsiders.com/red-light-therapy-discount-codes-deals-recommendations/ · Check out my YouTube Channel for product reviews and all things red light therapy! · Check out my website for research articles, reviews, and more on light therapy · Join my Facebook group with almost 10K members; it's an interactive group sharing their experiences. · Follow us on Instagram and TikTok.

    59 min

  4. EPISODE 4

    Common Red Light Therapy MYTHS Debunked: New Science

    Send a text In this episode of Light Therapy Insiders, Ari joins me, Bart Wolbers, to unpack how red and near-infrared light interact with human biology, why mitochondria are central to health and aging, and where common assumptions about dosing, heat, and device performance break down. Ari is the author of The Ultimate Guide to Red Light Therapy, recently released in a fully revised and expanded edition co-authored with Dr. Michael Hamblin—one of the most cited photobiomodulation researchers in the world. This conversation goes well beyond surface-level benefits and dives into mechanisms, controversies, and why humility matters in a field that’s still evolving. Key Topics Discussed Ari Whitten’s journey into red light therapy From competitive athletics and bodybuilding to chronic fatigue after Epstein–Barr virus infection, Ari explains how his focus shifted toward energy metabolism and mitochondrial health—and why that led him to light biology. Why mitochondria are central to health and aging We explore how modern research reframes mitochondria as more than “cellular powerhouses,” highlighting their role in immune function, brain health, stress responses, and biological aging. Red and near-infrared light in an evolutionary context Humans evolved under the sun, and different wavelengths influence biology in distinct ways—circadian rhythm signaling, vitamin D synthesis, nitric oxide production, heat effects, and more. Red and near-infrared light stand out because human tissue is unusually transparent to these wavelengths. Moving beyond the cytochrome c oxidase story Once considered the primary mechanism of photobiomodulation, cytochrome c oxidase is now understood as just one piece of a larger puzzle that includes gene expression, growth factors, immune signaling, and systemic effects. Heat, dosing, and the biggest PBM controversies We break down the debate around whether photobiomodulation must be “non-thermal,” why mild tissue warming is often unavoidable, and where the real danger thresholds likely sit. Systemic vs localized effects Ari explains why red light therapy doesn’t always need to be applied directly to a target tissue to produce benefits—and how blood, immune, and signaling pathways may play a larger role than many people assume. Pods vs panels: Is the price difference justified? We discuss whether full-body red-light pods offer advantages over large-panel setups—and why the lack of direct comparative studies leaves this question open. Industry transparency and misleading specs A strong call for third-party testing, honest irradiance data, and higher standards in an industry where exaggerated claims remain common. Thanks for listening! Disclaimer: Information shared is not medical advice. For the latest discounts, please visit my website: https://www.lighttherapyinsiders.com/red-light-therapy-discount-codes-deals-recommendations/ · Check out my YouTube Channel for product reviews and all things red light therapy! · Check out my website for research articles, reviews, and more on light therapy · Join my Facebook group with almost 10K members; it's an interactive group sharing their experiences. · Follow us on Instagram and TikTok.

    1h 14m
See All Season 3 (4)

Ratings & Reviews

5
out of 5
2 Ratings

About

 My name is Alex Fergus, and I'm a health and technology geek providing in-depth, independent product reviews on the latest red light therapy devices. With over seven years of experience studying light therapy and having used and tested dozens of hundreds of light therapy products, you can be sure that I'll have a video to help you with your educational or product-buying needs. Test, review, compare, and study all things Red Light Therapy.Whether you're seeking out the best Red Light Body Panel or an LED Mask or simply trying to learn more about the complexities of Red Light, my YouTube channel has videos for you.   https://www.youtube.com/@AlexFergusdotcom  I hope you enjoy and find my podcasts beneficial!Alex

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