Red Light vs Infrared: What's the Difference?

“Red light” and “infrared” show up together on device labels and studio menus. Are they the same thing? Not quite. Red light vs infrared: here’s the difference, why it matters, and why many recovery studios in Miami use both.

Where red and infrared sit on the spectrum

Visible light runs from violet (short wavelength) to red (longer). Just past red you get near-infrared—still part of the “light” family but no longer visible to the human eye. So red light you can see. Near-infrared you can’t. Both are used in therapy devices. When people say “red light therapy” they often mean red plus near-infrared. When they say “infrared” they might mean near-infrared (the kind used in recovery) or sometimes far-infrared (heat). For recovery and photobiomodulation, we’re talking red and near-infrared.

Red light: what it does

Red light sits around 630–700 nm. It penetrates skin a few millimeters. Research and practice have focused on skin, wound healing, and surface-level tissue. You’ll see it in face devices, small panels, and full-body beds. Red is the part you see glowing. It’s the “red” in red light therapy.

Near-infrared: what it does

Near-infrared (NIR) runs roughly 800–900 nm. It goes deeper than red—into muscle, joints, and connective tissue. So when the goal is muscle recovery or deeper structures, NIR is often in the mix. You can’t see it, but the LEDs still emit it. Many devices combine red and NIR so you get both shallow and deep coverage. That’s what you get on the EnergyLounger at our Upper Buena Vista studio: red and near-infrared in one session.

Red light vs infrared: same or different?

Same family, different wavelengths. Both can support photobiomodulation—the process where light affects cell behavior. Red tends to be used for skin and superficial tissue. Near-infrared reaches deeper. So they’re not the same, but they’re often used together. If a studio or device offers “red and near-infrared” or “red light therapy,” they’re usually giving you both. That’s the standard in serious recovery setups.

What about far-infrared?

Far-infrared (FIR) is different. It’s heat. Saunas and some “infrared” products use FIR. You feel warmth. That’s not the same as red or near-infrared photobiomodulation, where the goal isn’t heating you up. At Uplifted we use red and near-infrared on the EnergyLounger. No sauna-style heat. Just light.

Why this matters when you choose a studio

If you’re comparing red light therapy in Miami, ask what wavelengths the device uses. Full-body beds with red and NIR are common in recovery studios. Small panels might be red-only. Both can be useful depending on your goal—skin vs. muscle vs. general. We’re in Upper Buena Vista with full-body red and near-infrared. Clients from Key Biscayne, Coconut Grove, Coral Gables, Pinecrest, Miami Beach, and Surfside come in for sessions and often stack them with ARX or Shiftwave. One stop for strength and recovery.

Bottom line

Red light vs infrared: red is visible and hits surface tissue; near-infrared is invisible and goes deeper. They’re different wavelengths, often used together. When you see “red light therapy” on a menu, it usually includes both. If you want to try it, check out our red light therapy page or contact us. We’re at 5026 NE 2nd Ave #303. Call 305-419-3133 or book online.