Infrared Sauna Therapy: What It Does and Why It Works

Bottom Line

We've added an infrared sauna to our menu! Infrared sauna therapy uses near-, mid-, and far-infrared wavelengths to deliver targeted heat deep into body tissue. Clinical research supports its benefits for detoxification, heart health, muscle recovery, relaxation, weight loss, and skin health. Our model, the Sunlighten mPulse® Conquer, delivers all four wavelengths separately for more precise, effective results.

Infrared sauna therapy has moved well beyond the wellness fringe. Functional medicine doctors, professional athletes, and longevity researchers now use it as a core recovery and health tool.

Here's what the science says, and why the technology behind it matters.

How Does Infrared Sauna Therapy Actually Work?

Traditional saunas heat the air around you. Infrared saunas heat your body directly using light wavelengths the body naturally absorbs.

Each wavelength does something different:

• Near-infrared (NIR): Penetrates the skin's surface to support cellular repair and skin renewal

• Mid-infrared (MIR): Reaches soft tissue and muscles to improve circulation and reduce inflammation

• Far-infrared (FIR): Penetrates deepest, raising core body temperature to support detox and cardiovascular function

• Red light: Targets the skin directly to stimulate collagen production and reduce oxidative stress

  
  

Most saunas blend these wavelengths together. That limits precision. The Sunlighten mPulse® Conquer delivers each wavelength separately through PulseIQ™ technology, so the body absorbs more from every session.

What Are the Key Health Benefits of Infrared Sauna Therapy?

Detoxification

Far-infrared heat raises core temperature and promotes sweating at a cellular level, helping the body flush heavy metals and environmental toxins more effectively than surface-level sweating.

Heart Health

A clinical study conducted at the University of Missouri-Kansas City (2005) using Sunlighten SoloCarbon® heaters found a 6.5 mmHg reduction in systolic blood pressure. The Heart Health program on the mPulse Conquer starts at high heat to elevate heart rate and cardiac output, then lowers to sustain it, mimicking low-intensity cardiovascular exercise.

Muscle Recovery

Mid-infrared penetrates soft tissue to increase circulation and reduce delayed-onset muscle soreness. Useful after treatments, physical therapy, or high-intensity training.

Relaxation and Stress Relief

Far-infrared heat activates the parasympathetic nervous system, lowering cortisol and promoting deep relaxation without sedation.

Weight Loss

As heart rate increases during a session, the body burns calories to maintain that output. Over time, consistent sessions support metabolic function.

Anti-Aging and Skin Health

Red light and near-infrared wavelengths stimulate collagen synthesis and improve skin elasticity. People often report clearer, firmer skin after regular sessions.

What Makes the Sunlighten mPulse® Conquer Different from Other Infrared Saunas?

Why did we decide to purchase the mPulse® Conquer as the best choice for our clients?

This model is a 3-person infrared sauna built around four technologies that separate it from the pack:

• PulseIQ™: Controls red light, near-, mid-, and far-infrared independently for targeted absorption at the right depth and intensity

• SoloCarbon® heaters: Patented heaters with 99% emissivity and ultra-low EMF, delivering more infrared output than any other sauna on the market based on third-party testing

• CELLIANT® fabric heater covers: Line the interior walls to reflect infrared back toward the body, increasing absorption efficiency

• Built-in tablet and app controls: Allows clients or staff to start, schedule, and adjust sessions via Wi-Fi

  
  

Sunlighten backs its technology with 25+ years of innovation, 30+ patents, and the trust of over 200 doctors and wellness experts.

How Do Personalized Wellness Programs Work on the mPulse Conquer?

The mPulse® Conquer includes six preset wellness programs built from 37 clinical studies: Detox, Weight Loss, Heart Health, Relaxation, Muscle Recovery, and Anti-Aging.

Each program adjusts wavelength intensity and sequence automatically. Clients choose a goal, and PulseIQ™ handles the rest. No manual adjustments needed during a session.

Sign Up for Your First Infrared Sauna Session Today

Don't take our word for it. Give it a try for yourself. And while you're at it, bring a friend or two along for no additional charge! The sauna seats up to three comfortably.

Book now.

Frequently Asked Questions About Infrared Sauna Therapy

How is infrared sauna therapy different from a traditional sauna?

Traditional saunas heat the surrounding air. Infrared saunas use light wavelengths to heat body tissue directly, producing deeper therapeutic effects at lower ambient temperatures.

How many sessions are needed before people notice sauna results?

Some people notice changes after a single session, particularly in relaxation and muscle recovery. Consistent use over several weeks produces more lasting cardiovascular and skin benefits.

Is infrared sauna therapy safe for everyone?

Most healthy adults tolerate infrared sauna therapy well. Clients who are pregnant, have cardiovascular conditions, or take medications that affect heat regulation should consult their physician first.

What does ultra-low EMF mean, and why does it matter?

Electromagnetic fields (EMF) are emitted by most electrical devices. Sunlighten's SoloCarbon® heaters reduce EMF to levels that are virtually undetectable, making them one of the safest options available for clinical and wellness environments.