Latest Info on the Superior Relax Sauna

Key Resources

 

Meet Phil Wilson

Phil Wilson, owner of Relax Saunas of Momentum Hi, I’m Phil Wilson, owner of Relax Saunas of Momentum, proud distributor of the original and best-selling far infrared (FIR) sauna for over 25 years. I’ve spent decades sharing the science and the soul of far infrared therapy — because when you experience the pure, medical-grade FIR energy delivered by the Relax Sauna, you don’t just feel warm… you feel transformed. Let me show you why this technology continues to lead the industry, and how it can elevate your health on a cellular level.

Let me start by introducing Dr. Toshio Yamaguchi — if you are not aware of him yet.

Dr. Toshio Yamaguchi is recognized for his research into far infrared radiation and its biological effects — particularly how FIR interacts with water molecules in biological systems. His studies have helped illuminate what many clinicians had observed: far infrared light affects water in ways that go beyond simple heating.

This research is significant because it explores the intersection between biophysics and cellular hydration. It demonstrates how FIR in the 7–14 micron wavelength range can influence hydrogen bonding between water molecules, potentially reducing water cluster size and altering its properties within tissues.

How FIR Interacts with Cellular Water

Illustration of far infrared interacting with cellular water According to research in this field, when water is exposed to far infrared radiation in this specific range, its molecular vibration patterns change, affecting how water interacts with cellular structures. This vibrationally-altered water may move more efficiently across cell membranes, supporting cellular processes and enhancing metabolic function through improved hydration dynamics.

These findings suggest that water serves not just as a passive solvent in the body, but as an active participant in cellular communication and function. When the body is exposed to appropriate FIR wavelengths, the effects go beyond surface warming to influence the fundamental properties of cellular water.

This explains why FIR saunas designed to deliver specific wavelengths in this therapeutic range may offer benefits beyond traditional heating methods — they interact with the body's water in ways that align with our understanding of cellular hydration and metabolic processes.

The Relax Sauna Difference

The Relax Sauna is not like other saunas. It doesn’t rely on ambient air heat, glowing light panels, or vague claims about “infrared wellness.” It’s a medically-recognized FDA approved device, powered by a patented semiconductor chip that emits pure far infrared light in the precise 7–14 micron range — the exact frequency where water molecules in the human body resonate most effectively.

This range isn’t arbitrary — it’s biological truth. It’s the band shared across humans, mammals, and birds — a window of infrared absorption where energy becomes action at the cellular level.

While traditional saunas heat the air and wait for the body to catch up, the Relax Sauna excites your internal water clusters directly, generating measurable thermal movement within minutes — no long preheat, no wasted time.

And here’s what truly sets it apart: The Relax Sauna reaches the 20 W/m² power density required for medical-grade FIR therapy in just 3–4 minutes — and sustains it. Most saunas never reach that threshold. Others spike and fade. Relax stays consistent, session after session.

Relax Sauna resonates with the body's water molecules

What happens when light speaks the body’s native frequency?

This isn’t just external heat — it’s deep biological activation. When far infrared energy in the 7–14 micron range penetrates tissue and resonates with the body’s water molecules, it initiates a cascade of intelligent, measurable responses:

You begin to sweat faster and more efficiently not from heating the air around you, but from activating the water inside you. This deep sweat originates at the cellular level, mobilizing heavy metals, petrochemicals, and endocrine disruptors that standard sweating often leaves behind.

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Your core body temperature rises gently, mimicking the effects of a temporary, controlled fever. This subtle increase is incredibly therapeutic — helping to mobilize the immune system, stimulate white blood cell activity, and enhance enzyme function, all while staying comfortably within a safe, natural range.

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You activate both the lymphatic and glymphatic systems, encouraging the drainage and removal of waste products from tissues and the brain — reducing toxic burden, supporting immune clarity, and enhancing cognitive resilience.

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Circulation improves at the microvascular level, oxygenating tissues and delivering nutrients where healing is needed most. Blood vessels dilate, flow improves, and the body becomes more metabolically efficient, reducing stiffness, fatigue, and inflammation.

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And you enter parasympathetic repair mode — a neurological shift out of stress response and into deep recovery. Heart rate variability improves, cortisol drops, and your body begins the process of restoration, regeneration, and repair that only happens when it feels safe and supported.

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It’s precision-built, science-backed, and designed to heal — not just heat.

Why Far Infrared Sauna is Essential for Health and Well-Being

Summary

By Rebecca Harder (July 2021), National Board Certified Colon Hydrotherapist

Key Takeaway

Far Infrared Sauna (FIR) therapy is a necessary practice for modern health, offering superior detoxification, improved circulation, and immune system support. The Relax Sauna stands out as the best option, outperforming cheaper models and even high-end wooden saunas in efficiency, heat penetration, and convenience.

Why Far Infrared Sauna Is Necessary

Maintaining Proper Body Temperature

  • Many people suffer from low core body temperatures, leading to sluggish circulation, stagnant lymph flow, and weakened immune function.
  • FIR sauna therapy helps raise core temperature, supporting enzymatic processes and hormone production while creating an environment where infections and chronic conditions struggle to survive.

Detoxification of Heavy Metals & Chemicals

  • The body stores toxins in fat cells and tissues, making detoxification essential for health.
  • Studies show traditional sauna sweat is 97% water, while FIR sauna sweat contains 15–20% toxins, including heavy metals, sulfuric acid, ammonia, and fat-soluble toxins.
  • FIR is an effective tool for eliminating environmental toxins, reducing the toxic load stored in fat, bones, and organs.

Additional Health Benefits

Book cover of Gastra Girl: Saving America One Colon at a Time by Rebecca Harder Pain & Inflammation Relief – FIR reduces pain from neuropathy, arthritis, fibromyalgia, and post-surgical recovery.
Weight Loss – Detoxing removes the need for the body to store fat.
Improved Circulation & Oxygenation – FIR enhances blood flow, helping with energy, recovery, and cardiovascular health.
Stress & Sleep Improvement – FIR relaxes muscles, reduces stress hormones, and enhances sleep quality.
Workout Recovery & Performance – Pre-workout prepares muscles; post-workout reduces soreness.

Why Choose the Relax Sauna Over Other FIR Models?

  • 98% Pure Far Infrared with No Negative Frequencies
  • Heats up fast (reaches therapeutic heat within 15–20 minutes vs. 45+ minutes for wooden saunas)
  • Compact & Portable – Easy to store and travel with
  • No Off-Gassing – Safe for those with chemical sensitivities
  • More effective sweating & detox compared to carbon-panel saunas
  • More affordable than high-end wooden saunas ($1,000 vs. $4,000–$6,000 models)

Final Verdict

Far Infrared Sauna therapy should be a core practice for health, much like diet and exercise. The Relax Sauna is the most efficient, practical, and effective choice, providing superior detoxification, rapid heating, and high-quality infrared exposure in a convenient, cost-effective format. Users report daily benefits in energy, pain relief, and overall well-being, making it a must-have for anyone looking to optimize their health in the 21st century.

Read More

Both of the excerpts below come from Gastra Girl: Saving America One Colon at a Time by Rebecca Harder. The first link features the material as it appears in the book’s second edition, while the second reflects the original first edition. The content is essentially the same — a practical, insightful look at far infrared sauna therapy and its vital role in detoxification and overall well-being.

Comparison of Relax to Other Infrared Portable and Wooden Saunas

The Reddit thread below documents one user's home hyperthermic heat-stress training plus cold showers, and compares different sauna types based on practical outcomes like core temperature rise and perceived intensity. We’ve summarized the common takeaways and linked the original post for full context.

Criteria Relax Sauna (Portable FIR) Typical Portable Carbon-Panel Typical Wooden Sauna
FIR focus / purity Targeted FIR in ~7–14 µm band Mixed panel output; broader spread Room heating + mixed panels/emitters
Heat-up behavior Rapid perceived body warming Moderate; depends on panel density Room pre-heat often 30–45+ min
Power near seat distance Higher at close range (see data below) Lower to moderate Diffuse; cabin-dependent
Sweat onset Fast, deep sweat commonly reported Varies; often slower Slower; more ambient air heat
Portability / footprint Compact; folds for travel Compact; some fold Fixed installation; largest footprint
Maintenance / mold risk Low (quick dry; minimal wood) Low–moderate Higher if humidity unmanaged
Typical price range ~$1k–$1.6k ~$300–$900 $3k–$6k+

What the Reddit analysis found

  • Relax Sauna was one of the few home units users felt was powerful enough to approximate protocols seen in clinical studies.
  • Many budget portable units and some pricier brands (e.g., Therasage, Sunlighten Solo) were reported as underpowered for heat-stress training.
  • Pairing sauna sessions with cold showers was used to amplify adaptation.

Key quote

“The Relax Sauna is probably the best and only realistic option to do hyperthermic heat-stress training at home… cheaper competitors were underpowered.” — Reddit user review, Feb 2017 (r/Nootropics)

For lab-measured values (radiant flux & power density), see the “Understanding the Power of Far Infrared Saunas” section below on this page.

Notes: This is a user-generated discussion and reflects that author’s experience.

Infrared Illuminated — Ariel Calista Miller’s Review of Relax

Summary

In Infrared Illuminated, Ariel Calista Miller highlights the Relax Sauna for its deep-penetrating, high-purity far infrared output, fast warm-up, and practical design—making it a standout choice for effective at-home far infrared therapy.

Why Relax stands out: deep, high-intensity far infrared energy; rapid, efficient heating; and a simple, portable form factor that supports consistent daily use.

Key Points from the Review

  • High-intensity FIR: Produces deep, penetrating warmth at therapeutic levels that many portable units struggle to reach.
  • Fast & efficient: Reaches robust operating temperatures quickly, minimizing pre-heat time common with wooden models.
  • Detox & circulation support: Encourages a deeper sweat and improved microcirculation associated with FIR sessions.
  • Practical daily tool: Portable, space-saving, and easy to set up—ideal for consistent routines.
  • Pairs with cold therapy: Complements post-sauna cold exposure protocols for recovery and balance.

Comparative performance: The Relax Sauna outperforms both Amazon budget infrared saunas and Therasage by delivering 98% pure far infrared (FIR) energy through two 750W radiators and 40 advanced semiconductor chips, ensuring deep heat penetration and therapeutic efficiency. Unlike Amazon models, which are underpowered (often 900W or less) and struggle to exceed 105°F, the Relax Sauna reaches 165–170°F within 20 minutes, generating the intense heat stress required for true detoxification, circulation, and immune benefits. Therasage (1000W) lacks the power output needed for optimal FIR absorption, falling closer to Amazon-level performance. Furthermore, Relax Sauna’s design eliminates off-gassing and negative frequencies, while Amazon models and Therasage rely on weaker carbon panels or ceramic heaters, resulting in less effective sweating and heat penetration. For those seeking scientifically validated infrared therapy, the Relax Sauna is the only home-use FIR sauna that replicates or surpasses clinical results, making it the superior choice for serious health and detoxification benefits.

 

Understanding the Power of Far Infrared Saunas:

Radiometric & Power Density Analysis

When evaluating far infrared saunas, two key technical measurements determine their effectiveness: radiant flux (total energy output) and power density (irradiance at a given distance). These measurements help us compare different sauna models objectively, ensuring that performance claims align with real scientific data.

Radiometric Measurement

Explanation: Beyond just measuring brightness, radiometric measurement quantifies the total energy emitted in all directions using devices like radiometers and bolometers.

Key Measure: Radiant Flux, which refers to the total energy emitted per second by a light source, measured in watts.

Sauna Type Radiant Flux (W)
Relax Sauna 0.518 – 2.063
Full Spectrum Sauna 0.164 – 0.664
Amazon Sauna 0.122 – 0.556

Discussion: The Relax Sauna demonstrates superior energy emission, with even its lowest measure surpassing the highest values of its competitors.

Power Density Measurement

Importance: Power density, expressed in watts per square meter, evaluates radiation intensity at a specific distance.

Key Measure: Irradiance measures how much energy impacts a surface per unit area.

Sauna Type Power Intensity (mW/cm² at 20 cm)
Relax Sauna 5.18 – 20.63
Full Spectrum Sauna 1.64 – 6.64
Amazon Sauna 1.22 – 5.56

Discussion: Relax Sauna is significantly stronger in power intensity, providing three times the strength of the full spectrum and portable saunas tested.

Final Takeaway: The Relax Sauna Dominates in Performance

When it comes to scientifically measured energy output, the Relax Sauna is in a completely different league compared to Therasage and Amazon models. With higher total infrared output (radiant flux) and greater energy intensity (power density), it ensures maximum efficiency for detoxification, circulation, and deep heat therapy.

This data confirms what users experience firsthand—faster, more intense, and more effective infrared therapy. If you're looking for a true far infrared sauna, Relax Sauna is the clear winner.

Key Resources

 

FAQ — Far Infrared & Relax Sauna

What makes Relax Sauna different from typical portable infrared saunas?

Relax is designed to deliver focused far infrared in the biological window (commonly cited as ~7–14 µm) with rapid warm-up and strong perceived intensity, supporting a deep sweat in shorter sessions.

Do I need to preheat it?

Most users begin feeling deep warmth within minutes. Many start sessions with minimal preheat versus the long preheat typical of wooden saunas.

Can I pair FIR sessions with cold exposure?

Yes. Many protocols alternate heat and cold for recovery and nervous-system balance—always listen to your body and consult your practitioner.

Is it portable and low maintenance?

Relax folds, stores easily, and dries quickly. With little wood and simple surfaces, routine wipe-downs are usually sufficient.

Who shouldn’t use a sauna?

People with certain medical conditions, pregnant individuals, or those on medications that impair sweating/temperature regulation should consult their healthcare provider before use.

Far Infrared Solutions for Every Lifestyle

 

Doctors' Opinions on the Relax Sauna

Trusted voices in medicine and wellness

The Benefits of Relax Sauna

With Phillip Wilson

The Relax Sauna delivers the most powerful and efficient far-infrared healing experience on the market. Using patented semiconductor chips to emit 100% pure far-infrared light (7–14 microns), it heats instantly, inducing a deep sweat that supports detox, circulation, pain relief, and cellular energy. Loved by light therapy advocates and backed by studies, it outperforms bulky wooden saunas and portable knockoffs. Lightweight and travel-ready, it’s the go-to for those who love fast, effective healing energy — anywhere, anytime.

Dr Bill Akpinar Interview Relax Sauna and Detoxing
March 19, 2018
Effectiveness of Relax Saunas Far Infrared Acknowledged - AAMP-21 Conference Spring 2021
May 21, 2021
Remarkable Relax Far Infrared Sauna Review by Dr James Onnikian
March 26, 2018
Relax Sauna Review by PhD. Learn the many benefits of the Relax Far Infrared Portable Sauna
November 16, 2018
Doctor Explains the Benefits of Far Infrared Sauna
September 25, 2025
NASA Doctor uses this Infrared Sauna "This is the Gold Standard as far as I'm concerned"
December 16, 2022
Wooden Sauna Owner Finds that the Relax Sauna Works Better. No mold. EMF
March 12, 2019
Doctor Rafael explains the many benefits of infrared saunas and how it helps him and his patients
December 15, 2022
Dr. Bob Why do DOCTORS PREFER This Infrared Sauna?
February 4, 2020
Dr Ernest Ehrhardt
December 7, 2022
Wellness center owner describes his patients inflammation issue resolved with the Relax Sauna
December 14, 2022
Kathy EMF specialist owns a Relax Sauna
June 4, 2019
Radionics specialist discusses EMF and the Relax Sauna also the durability of the Relax Sauna
July 27, 2018
Laura Benz Director of Hyperbarics Rx
October 3, 2019
Akashic Reader describes the energy in the Relax Sauna
February 27, 2025

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