Infrared Sauna for Skin Health: Benefits, Risks, and How to Use One Safely

Heat therapy offers many health benefits, and an infrared sauna is a great way to experience them. Infrared saunas are increasingly used as part of at-home wellness routines, and their effects on skin are a common reason for that.

When it comes to using an infrared sauna for skin health, some evidence suggests infrared radiation can influence skin-related processes like collagen activity. However, some claims that infrared saunas can rejuvenate skin, remove toxins, or treat skin conditions have not yet been proven with bulletproof evidence. 

So what exactly does an infrared sauna do for skin health? Without sugarcoating it, let’s take a look at infrared sauna benefits for skin health, risks, and how to use one safely.

How Infrared Sauna Heat Affects Your Skin

The reason infrared saunas have grown popular is the way they work. The infrared radiation warms your body directly rather than the air surrounding you in the cabin. This means you can experience heat therapy at a lower temperature than a traditional sauna, typically around 40–60°C. Now, what does this mean for your skin?

How deep does infrared heat reach into skin?

Infrared radiation has different wavelengths. Depending on the wavelength, infrared energy can penetrate the surface of your skin and warm up the tissue beneath it. This means that the penetration depth varies with the type of infrared radiation and the properties of the tissue. So if you think about it, infrared heat warms skin tissue at different depths rather than reaching a fixed depth.

One important factor behind most heat therapy benefits is blood circulation, which is also effective in our scenario. When infrared heat warms your skin tissue, blood flow near the skin increases and raises tissue temperature. These changes are part of the reason why infrared sauna for skin health and effects like circulation, collagen, and other processes are being studied.

What happens when skin is exposed to heat?

When your body is heated, your blood vessels expand to help regulate the new temperature, increasing blood circulation to your skin. On the other hand, heat can activate heat shock proteins, which help your cells respond to physical stress and maintain normal cellular function.

Heat can also influence fibroblasts, the cells that produce the collagen and elastin proteins. While this is absolutely beneficial, it still doesn’t mean that sitting in an infrared sauna will produce a clinically significant amount of new collagen in your skin. The evidence backing strong benefits of infrared sauna for skin health is still pretty limited. So it’s important for you to understand that while using heat therapy can boost your skin health to some extent, it’s still not a replacement for established skincare or dermatological treatments.

If you think about it, the concept is simple: Infrared sauna heat triggers physiological changes that can support certain aspects of skin health, but the effect depends on the type of infrared exposure, session conditions, and how your body and skin react and respond to the heat.

Infrared Sauna for Skin Health: The Benefits

Now that you have realistic expectations of how infrared heat affects your skin, let’s look at the different ways infrared saunas can boost your skin health. These benefits usually come from your body’s response to controlled heat. Increased blood flow, sweating, and temporary changes in skin temperature can influence how your skin looks and feels.

Collagen production and anti-ageing

So we talked about heat's influence on fibroblasts. Research has found that specific infrared treatments do increase the production of collagen and elastin, meaning that infrared energy can boost your skin’s structure and elasticity. Again, this collagen and elastin production boost is not visibility significalnt and cannot replace professional dermatological care. Consider using an infrared sauna for skin health alongside your skincare routine and procedures. 

Improved circulation and a healthy-looking glow

One of the most common benefits of infrared saunas is the famous “sauna glow” that’s caused by improved circulation and excess sweating. Heat causes the blood vessels near your skin to widen and increase blood flow to your skin. This can temporarily make your skin and face appear warmer, brighter, and more flushed after your sauna session.

The evidence backing this up is another study published in PubMed. This research into infrared exposure observed changes in skin blood flow and vascular responses, but the results vary according to the type and density of infrared exposure.

Acne, eczema, and inflammatory skin conditions

Although not an ultimate solution, infrared sauna sessions can help with some skin conditions like acne and eczema. One factor you need to consider is that sometimes heat and perspiration can aggravate redness, irritation, and sensitivity. Always check with a dermatologist or healthcare professional before committing to a sauna routine if you have an inflammatory skin condition.

Detoxification: what does the evidence actually show?

Sweating is your body’s natural way to regulate temperature, but it doesn’t exactly “detoxify” your skin. Heat and sweating help clean your skin pores, but the primary organs responsible for detoxification are your liver and kidneys. 

Is Infrared Sauna Bad for Your Skin? Risks and Who Should Avoid It

Infrared sauna for skin health is an amazing addition to a healthy skincare routine, but heat exposure generally isn’t for everyone. Spending too much time in a sauna, dehydration, and exposing sensitive skin to excessive heat can cause some problems:

• Dehydration: Dehydration is not just a fluid loss issue for your skin, but also a common caution with using saunas. Consider drinking water before and after your sauna session to avoid it.

• Overheating and dizziness: Another typical issue to be aware of is staying too long in the sauna. Leave immediately if you feel lightheaded, weak, or nauseous.

• Skin irritation: If you have a reactive skin condition, heat and sweating might cause issues like redness, itching, or inflammation. Leave immediately if you feel any of these symptoms and consult with your dermatologist about using a sauna.

• Dry or uncomfortable skin: If you have dry skin, repeated sauna sessions can make your skin feel tight. Always moisturise your skin before and after sauna sessions to avoid tightness and dryness.

Who should speak to a doctor first?

Certain people should seek medical advice before using an infrared sauna:

• Pregnant people

• Those with cardiovascular conditions

• Those who have problems regulating body temperature or take medications that affect sweating

• Those with blood pressure complications

• Anyone with a diagnosed skin condition

The safest approach is to start slowly. Use shorter sessions, stay hydrated, and stop if you feel any discomfort like dizziness, nausea, unusual weakness, or significant skin irritation. Using an infrared sauna should complement your wellness routine, not push your body beyond comfortable limits.

How to Use an Infrared Sauna for Skin Health

If you want to make the best out of using an infrared sauna for skin health without pushing the boundaries of your body, consider a few best practices:

How often should you use an infrared sauna?

If you’re new to using infrared saunas, 2 to 3 sessions a week is a great frequency to begin with. Once you know how your body and skin respond to heat exposure, you can follow this sequence to increase the frequency:

What should you do before an infrared sauna?

• Drink water before and after your session. If you’re doing long sessions, keep a water bottle in the cabin with you.

• Cleanse your skin to remove makeup, sunscreen, and excess oils.

• If you want to moisturise, avoid applying heavy creams immediately beforehand.

• Wear minimal, breathable, and comfortable clothing that allows heat to reach your skin.

What should you do afterwards?

• Gently cleanse if you need to remove sweat.

• If you want, you can apply a hydrating serum to damp or freshly cleaned skin.

• Moisturise to support your skin barrier and reduce dryness.

• Apply SPF during the daytime as you usually do.

• Wait about 10 minutes before showering. Let your body adjust to room temperature before hopping into a shower, especially if you want to take a cold shower.

FAQs

Is infrared sauna good or bad for skin?

Using an infrared sauna for skin health is beneficial because the heat helps with sweating, blood circulation, and relaxation. You will also get the sauna glow after every session. However, using a sauna cannot be a replacement for dermatological treatments. For some skin types and conditions, it’s best to consult a dermatologist before using an infrared sauna to avoid skin irritation.

Does an infrared sauna help with sagging or ageing skin?

Heat therapy has been proven to trigger the production of collagen and elastin, so it can help with skin structure and elasticity to some extent. But the level of collagen and elastin production is not high enough to replace anti-ageing or skin-tightening treatments.

Can an infrared sauna help with acne?

Infrared sauna sessions are not a direct treatment for acne-prone skin. Heat causes excess sweating, which helps clean pores and give your skin a more refreshed look.

Should I moisturise after using an infrared sauna?

Yes. Applying a gentle moisturiser after a sauna session can help hydrate your skin and support your skin barrier. Allow your skin to cool slightly, cleanse the sweat away, and apply your hydrating skincare.