Sauna With Red Light Therapy: Is the Combo Worth It?

Sauna listings now advertise red light therapy the way cars advertise heated seats. It sounds like more of the same thing. It isn’t.

Heat and red light are two separate features that happen to share a cabin. This article separates them so you can price each one. For the wider category, see the home wellness equipment buying guide.

Short answer: an infrared sauna heats you. Red light therapy shines low-level red light on your skin and isn’t about heat. A cabin with both is convenient, but the evidence for red light is thin, so don’t pay a large premium for it.

Two different technologies

An infrared sauna uses heating panels to warm your body. The Dynamic Andora, for example, has 6 far infrared carbon panels and a stated maximum of 140°F.

Red light therapy is defined by Cleveland Clinic as “a treatment that uses low levels of red light to reportedly improve your skin’s appearance.” One of the alternative names it lists is “Non-thermal LED light.”

Non-thermal is the word to notice. A red light panel isn’t trying to make you sweat.

The panels in our catalog state their wavelengths. The Joovv Mini 3.0 uses 660nm red and 850nm near-infrared LEDs. The MitoPRO 1000+ uses 630, 660, 830, and 850nm.

What the evidence says about red light

Cleveland Clinic’s summary is blunt. Red light therapy is promoted for some common skin conditions, “but at this point in time, there’s not enough evidence to support most uses.”

On safety it says the therapy “appears to be safe,” and adds that “the long-term safety of devices that use red light therapy isn’t yet known.” It also says to shield your eyes and follow the device directions.

It makes one clear distinction: this is not the ultraviolet light from the sun or tanning booths.

This is general information, not medical advice.

What a combined cabin gives you

Some cabins build the light in. The Finnmark FD-4 Trinity lists a 192-diode red light therapy panel at 650nm alongside its infrared array and traditional stove.

You get one purchase, one footprint, and a light the sauna maker installed in that cabin. You give up choice: the panel’s size and wavelengths are fixed by the sauna maker.

The separate route

The combined prices are my arithmetic from the listed prices. The comparison isn’t like for like, because the FD-4 is also a traditional sauna that reaches 190°F.

Can you put a panel inside a sauna?

Here’s what the spec sheet won’t tell you. The panel listings in our data give wavelengths, wattage, and irradiance. They don’t give a maximum operating temperature.

So I can’t tell you a Joovv or Mito panel is safe at 140°F, and you shouldn’t assume it. Ask the panel maker in writing before you mount one in a hot cabin. Until then, use the panel outside the sauna, before or after your session.

Does combining them do anything extra?

None of the sources used here tests red light and sauna heat together. Any claim that the two multiply each other’s effects is marketing until a study says otherwise.

What the combination does give you is time. If you would use both anyway, doing them in one 20-minute session is easier to keep up.

How to decide

My rule of thumb: buy the sauna on its heat, its circuit, and its warranty. Treat red light as a small bonus, not a reason.

If red light is what you want most, a standalone panel costs less and lets you choose the wavelengths.

Bottom line: red light therapy and sauna heat are different tools. The heat has the longer research record. Pay for the sauna you want, and add red light only if the price difference is small.

Sources

• Cleveland Clinic, “Red Light Therapy: Benefits, Side Effects & Uses,” last updated December 1, 2021: my.clevelandclinic.org
• Finnmark, Dynamic Saunas, Joovv, and Mito Red Light listings (panels, wavelengths, wattage, maximum temperature, price), checked September and October 2026