Complete Terahertz Frequency Guide
The definitive reference for understanding terahertz (THz) electromagnetic radiation—its position on the spectrum, unique properties, how it compares to other frequencies, and emerging wellness applications.
1 THz = 10¹² Hz | Wavelength: 0.03-3mm | Between Microwave & Infrared
Electromagnetic Spectrum Position
Radio
Waves Micro-
waves TERAHERTZ
(THz Gap) Infrared
(IR) Visible
Light Ultra-
violet X-rays &
Gamma
Waves Micro-
waves TERAHERTZ
(THz Gap) Infrared
(IR) Visible
Light Ultra-
violet X-rays &
Gamma
🔬 Non-Ionizing Radiation
Unlike X-rays and UV, terahertz waves have extremely low photon energy (~0.3-40 meV). They cannot break chemical bonds or ionize atoms, making them fundamentally safer for biological interaction than higher-frequency radiation.
💧 Water Molecule Resonance
THz frequencies correspond to rotational and vibrational modes of water molecules. Since the human body is ~60% water, terahertz waves interact uniquely with biological tissues through this resonance mechanism.
📡 Deep Penetration Capability
Terahertz waves can penetrate non-conductive materials (clothing, plastics, paper, ceramics) and biological tissue to depths of 20-30cm—far beyond visible or infrared light—without generating significant heat.
🎯 Cellular Frequency Match
Research suggests healthy human cells naturally vibrate at frequencies within the terahertz range. This resonance principle is the foundation for terahertz therapy's proposed mechanism of cellular activation.
Frequency Technology Comparison
Technology
Frequency Range
Wavelength
Penetration
Key Characteristics
Radio Waves
3 kHz - 300 GHz
1mm - 100km
Full body
Communication, broadcasting. Very low energy, passes through body with minimal interaction.
Microwaves
300 MHz - 300 GHz
1mm - 1m
Several cm
Heating effect via water molecule agitation. Used in ovens, WiFi, radar. Can cause thermal damage at high power.
Terahertz
Focus
0.1 - 10 THz
30μm - 3mm
20-30 cm
Non-ionizing, resonates with water molecules and biomolecules. Penetrates tissue without thermal damage. Emerging wellness applications.
Far Infrared
0.3 - 30 THz
10μm - 1mm
2-4 cm
Generates heat in tissue. Used in IR saunas. Overlaps with THz range. Primarily thermal mechanism.
Near Infrared
120 - 400 THz
0.7 - 2.5μm
3-4 cm
Photobiomodulation, mitochondrial stimulation, ATP production. Well-researched for tissue healing and pain.
Red Light
400 - 480 THz
620 - 750nm
8-10 mm
Visible spectrum. Collagen stimulation, skin rejuvenation, surface wound healing. Most studied for skin applications.
PEMF
1 - 50 Hz
6,000 - 300,000 km
Full body
Pulsed magnetic fields, not electromagnetic waves. Affects cellular voltage, bone healing, circulation. Different mechanism than THz.
Reported Terahertz Therapy Applications
Microcirculation Enhancement
THz waves may dilate blood vessels and reduce blood viscosity, potentially improving oxygen and nutrient delivery to tissues throughout the body.
Cellular Activation
By resonating at cellular frequencies, terahertz may stimulate dormant cells and support metabolic activity, encouraging the body's natural repair processes.
Inflammation Response
Preclinical research suggests THz frequencies may help modulate inflammatory pathways and reduce oxidative stress markers in tissue.
Molecular Resonance
Biological molecules like NO, CO, and O₂ have spectral signatures in the THz range. THz therapy may influence these signaling molecules.
Lymphatic Support
THz frequency exposure may support lymphatic drainage and detoxification pathways, helping clear cellular waste and reduce fluid retention.
Meridian & Energy Flow
In traditional wellness frameworks, THz may help clear energy blockages and support the body's natural flow of vital energy through meridian pathways.
Terahertz Technical Specifications
0.1-10 THz
Frequency Range
30μm-3mm
Wavelength Range
0.4-40 meV
Photon Energy
20-30 cm
Tissue Penetration
Non-Ionizing
Radiation Type
<0.1°C
Typical Temp Rise
✓ Safety Profile
Non-ionizing: Unlike X-rays, THz waves cannot break chemical bonds or damage DNA through ionization
Non-thermal: At therapeutic intensities, THz does not significantly raise tissue temperature (<0.1°C)
Non-invasive: No needles, no contact required for many devices, painless application
Research ongoing: Active study in biomedical applications including imaging and diagnostics
Important Information
This chart is provided as an educational reference synthesizing published research, scientific literature, and reported applications of terahertz technology. Terahertz therapy is an emerging field and many applications remain under investigation. Individual experiences may vary significantly. Terahertz devices are wellness tools designed to support general well-being and are not medical devices. They are not intended to diagnose, treat, cure, or prevent any disease. The information presented should not replace professional medical advice. Always consult with a qualified healthcare provider before beginning any new wellness regimen. These statements have not been evaluated by the FDA.
