Red light and infrared light sit side by side on the light spectrum, and they often share the same device. Yet they work at different depths, feel different on the skin and suit different goals. Understanding red light vs infrared light is the key to choosing the right device and getting the most from every session.
This guide covers what each type of light is, how red light compares to near-infrared and far-infrared, which one suits your goals, and why the most effective panels combine both.
The Short Answer
- Red light (630–700nm) is visible and works at the surface, supporting skin, hair and collagen.
- Near-infrared light (700–1,100nm) is invisible and travels deeper, supporting muscles, joints and recovery.
- Far-infrared (above 3,000nm) is felt as gentle heat, the warmth behind infrared saunas and sauna blankets.
- The best approach pairs red & near-infrared light, so one session supports both surface and deeper tissue.
What Is Red Light?
Red light is the deep red glow you see when a red light therapy panel is switched on. It sits at the end of the visible spectrum, between roughly 630 and 700 nanometres (nm), with 630nm and 660nm the most widely used wavelengths.
Red light is absorbed in the upper layers of the skin, where it energizes cells by supporting their mitochondria. Red light is linked to stimulating, restoring and rejuvenating skin, which is why it's the cornerstone wavelength for:
- Skin tone, texture & collagen
- Fine lines & overall radiance
- Hair follicles & scalp health
- Calming redness & sensitive skin
For more on red light and the skin, read our guide to red light therapy for skin health.
What Is Infrared Light?
Infrared light begins where visible red light ends. It's invisible to the eye, and it covers a broad range of wavelengths that behave very differently from one another. In wellness, two types matter most.
Near-infrared light
Near-infrared (NIR) light sits beyond visible red, from about 700 to 1,100nm, with 810nm, 830nm and 850nm the most common. Like red light, near-infrared works through photobiomodulation, energizing cells rather than heating them. Its longer wavelength travels deeper into the body, reaching muscles, joints and connective tissue.
Far-infrared light
Far-infrared (FIR) light has much longer wavelengths, above roughly 3,000nm. Rather than working through photobiomodulation, far-infrared is absorbed by the body as radiant heat. It's the deep, enveloping warmth of an infrared sauna or sauna blanket.
| Type | Wavelength | Visible? | How it works | Best for |
|---|---|---|---|---|
| Red | 630–700nm | Yes | Energizes cells | Skin, hair, collagen |
| Near-infrared | 700–1,100nm | No | Energizes cells, deeper | Muscles, joints, recovery |
| Far-infrared | 3,000nm+ | No | Radiant heat | Sweat, warmth, relaxation |
Red Light vs Near-Infrared Light: How They Compare
Red and near-infrared light share the same mechanism, so the real difference comes down to depth and focus.
Depth. Red light is absorbed within the skin, making it ideal for surface goals. Near-infrared light passes further, reaching the tissue beneath the skin's surface. Together, they cover the full depth from skin to muscle.
Sensation. Neither feels hot at the recommended distance. Red light glows brightly, while near-infrared is invisible, so near-infrared LEDs appear dim or faintly red even when they're working at full output.
Focus. Red light leads for skin and hair. Near-infrared leads for recovery, joint comfort and deeper tissue. Most routines benefit from both.
Red Light Therapy vs Far Infrared
Red light therapy and far-infrared are often grouped together, but they offer very different experiences.
Red light therapy is precise and light-based. Sessions last minutes, you stay cool and comfortable, and the light works at the cellular level.
Far-infrared is heat-based. It raises your core temperature, encourages a deep sweat and creates a profound sense of relaxation, much like a traditional sauna at a gentler air temperature.
The two complement each other beautifully. Many people pair red light sessions with far-infrared heat as part of a complete recovery ritual. Discover the benefits of infrared sauna to see how heat fits into your routine.
Red Light vs Infrared Light for the Face
For the face, red light takes the lead. Its affinity for the skin's surface makes it the cornerstone for tone, texture, fine lines and radiance. Near-infrared complements it by supporting the deeper layers that keep skin firm and resilient.
A combined red & near-infrared panel gives your face the complete benefit in a single session. For guidance on timing, read how long to use red light therapy on your face.
Infrared vs Red Light for Recovery, Muscles & Joints
For recovery, near-infrared takes the lead. Its deeper reach supports muscles after training, stiff joints and the connective tissue around them. Red light supports the skin and surface circulation above.
That's why athletes and active people favour panels with strong near-infrared output, paired with red light for complete coverage. Learn more about how red light therapy reduces inflammation.
Which Light Is Right for Your Goal?
Use this as a quick guide to where each type of light shines:
- Glowing, even skin: red light leads, with near-infrared supporting firmness beneath the surface.
- Fuller, healthier hair: red light leads at the follicle, with near-infrared complementing it from below.
- Post-workout recovery: near-infrared leads for muscles, with red light supporting surface circulation.
- Joint comfort & mobility: near-infrared leads thanks to its deeper reach.
- Relaxation & a deep sweat: far-infrared heat from a sauna or sauna blanket.
- A complete daily ritual: a combined red & near-infrared panel, with infrared heat a few times a week.
Most goals call for more than one wavelength, which is exactly why combined panels have become the standard for at-home routines.
Why the Best Panels Combine Red & Near-Infrared Light
Choosing between red light and infrared isn't necessary. A panel that delivers both gives you surface and deep benefits in the same session, without doubling your time.
Every Orion panel pairs red & near-infrared light. The Pro Series focuses on the two cornerstone wavelengths, 660nm red and 850nm near-infrared. The One Series broadens the spectrum with six wavelengths: 630nm and 660nm red, 810nm, 830nm and 850nm near-infrared, and 480nm blue. To compare the lineup, see our buyer's guide to the best red light therapy panels.
Red & near-infrared, in every session
Medical-grade red light therapy, Designed in Canada & Health Canada Licensed. Every panel includes a 60-day home trial and a 2-year limited warranty.
Explore Orion PanelsRed Light Therapy vs Infrared Sauna
A red light therapy panel and an infrared sauna serve different purposes, and they work best together.
- Red light therapy delivers red & near-infrared light for skin, hair and recovery, in sessions of 5–10 minutes.
- An infrared sauna delivers far-infrared heat for sweat, relaxation and a sense of renewal, in sessions of 20–45 minutes.
Pairing the two is simple at home. Use your red light panel for focused daily sessions, and add an infrared sauna blanket like the Embers Sauna Blanket for deeper heat sessions a few times a week.
How to Use Red & Near-Infrared Light Together
- Distance: position yourself 12–18 inches from the panel.
- Session length: 5–10 minutes per area.
- Frequency: 3–5 sessions per week.
- Preparation: start with clean, bare skin so light reaches the tissue directly.
- Eyewear: wear the protective eyewear provided, especially for facial sessions.
Consistency matters more than intensity, so build a rhythm you can keep. Here's why consistency beats intensity.
Frequently Asked Questions
Is red light therapy the same as infrared?
No. Red light is visible and works at the skin's surface, while infrared is invisible and works deeper. Most red light therapy panels include both red and near-infrared light.
Is infrared or red light better?
Neither is better on its own. Red light leads for skin and hair, near-infrared leads for muscles and joints, and combining the two delivers the most complete benefit.
Why can't I see the near-infrared light on my panel?
Near-infrared sits beyond the visible spectrum, so near-infrared LEDs appear dim or faintly red even when they're working at full output.
Does near-infrared light feel hot?
No. Near-infrared light works at the cellular level rather than through heat, so sessions stay comfortable at the recommended distance.
Is far-infrared the same as near-infrared?
No. Near-infrared works through photobiomodulation, while far-infrared is absorbed as heat. Far-infrared is what powers infrared saunas and sauna blankets.
What does blue light add?
Blue light at 480nm works at the very surface of the skin. Orion's One Series includes it alongside red & near-infrared for a broader spectrum in every session.
Can I use red light therapy and an infrared sauna on the same day?
Absolutely. Many people use their red light panel first, then follow with an infrared sauna session for a complete recovery ritual.
The Bottom Line
Red light and infrared light are partners, not rivals. Red light supports the skin's surface, near-infrared reaches deeper into muscles and joints, and far-infrared delivers soothing heat. Choose a panel that combines red & near-infrared light, add infrared heat if you enjoy it, and build a consistent routine around both.
Ready to experience both? Explore Orion's red light therapy panels.
This article is for general wellness information and is not medical advice.
