Infrared sauna and red light therapy

In the world of wellness, it’s easy for things to get blurred. Buzzwords get recycled, benefits get bundled, and suddenly two completely different treatments get described as if they’re exactly the same thing.

Infrared sauna and red light therapy are often grouped together. Both use light, but they work in fundamentally different ways.

At Solāis, we use both and we value both. But we also keep them separate, because they offer different kinds of support.

Infrared sauna: a whole-body physiological shift

Infrared sauna uses infrared light to generate gentle, penetrating radiant heat. The heat is absorbed by the body rather than just the air around you, so warmth builds internally. That’s what triggers a sweat, and encourages a shift in your circulatory, lymphatic, and nervous systems all at once.

It’s for the days when your whole system feels heavy, stagnant, overwhelmed or out of rhythm. When you’re not sleeping, not shifting, not bouncing back. When the body needs to do something — circulate, detox, regulate — without being overstimulated.

That’s what the infrared sauna does.

This isn’t just light. It’s a state change.

Red light therapy: local, cellular-level support

Red light therapy doesn’t create a heat response. It uses specific red and near-infrared wavelengths (commonly LED-based) to deliver a photobiomodulation signal to tissue — typically in a local, targeted way.

However, it’s increasingly being used in ways it wasn’t originally designed for. Applied too broadly, for too long, or without considering dose and timing. Emerging research and practitioner insights are beginning to highlight the risks of overstimulation, especially in already depleted or sensitive individuals.

At Solāis, we use red light therapy as it was intended: in short, targeted sessions, close to the skin, and at the right time of day and definitely not as a replacement for systemic recovery, but as a complement when the body is ready.

Red light is brilliant when one specific area needs care:

• scar tissue

• a joint

• a patch of inflamed skin

• localised tension

It’s not about sweating or state shifts. It’s about giving one part of the body a nudge.

How they work together

If infrared sauna is about creating a systemic response, Red light therapy is about meeting a local need.

They don’t compete.

They complement.

They just need to be used with intention.

At Solāis, we don’t just list both on a menu. We help you understand when and why one might be more supportive than the other and how to use them in combination without overstimulating a system that might already be tired.

Sometimes that means starting with heat.

Sometimes it means applying red light to a small area at a specific time.

Sometimes it means doing both, but with boundaries: distance, dose, duration, time of day.

What this might look like in real life:

Exhausted + not sleeping → go for infrared sauna to calm the system and support a downshift. Red light may feel stimulating, so treat it like coffee: earlier, small dose, or not at all until you’re sleeping better.

Scar tissue after surgery → use red light first, directly over the scar area, close to the skin (or as close as comfortable, per the device guidance) in a short, targeted session. Then do infrared sauna afterwards to support the wider recovery environment: full-body circulation, warmth, relaxation, and fluid movement — the systemic support you can’t get from light alone.

You feel run down + one area is flaring (sinus/ear) → start with targeted red light first (short, close to the area) for local support. Then use infrared sauna to support whole-body recovery: circulation (delivery and clearance), fluid/lymph movement, and nervous system downshift — all of which underpin immune resilience when you’re run down.

Why we care about this distinction

I can give dozens of examples, but the principle stays the same:

A targeted tool can’t replace systemic support. And when you understand how to use each one ie the right dose, timing, and purpose you’re far more likely to feel real, lasting benefit.

Because how you use something matters just as much as what you use.

At Solāis, we don’t oversimplify.

We don’t bundle benefits that don’t belong together.

And we never confuse one modality for another because each has its place, and its strength, when used with care.

We believe light is powerful but only when it’s used with intention.