How a sauna can help your skin feel amazing isn’t just a feel-good idea — it’s a proven way to support healthy, glowing skin.
Saunas have been used for hundreds of years in cultures like Estonia, and they’re now gaining popularity across the U.S.
Whether you’re visiting a spa or enjoying a backyard barrel sauna, you’re giving your skin a powerful, natural boost.
From deep cleansing and circulation to stress relief and even natural exfoliation with birch ash, sauna time is skincare time — if you do it right.
Why Sweating Is Good for the Skin
Why sweating is good for your skin comes down to what’s happening just under the surface. Sweat carries away dirt, bacteria, and toxins that build up in your pores throughout the day.
In a sauna, your body heats up gently, encouraging a deep, purifying sweat that helps clear skin without scrubbing.
This is especially helpful if you wear makeup daily, live in a polluted city, or have occasional breakouts. Think of it like a full-body face wash — powered by your biology.
Tip: After your sauna session, always shower using lukewarm (not hot) water to wash off sweat and keep pores from re-clogging.
How a Sauna Helps the Skin
How a sauna helps your skin includes both external and internal benefits.

Externally, it removes excess oil, dead skin, and dirt. Internally, it increases circulation, bringing oxygen and nutrients to the skin.
This makes your face appear more radiant and your skin feel softer. With repeated use, many people notice improved texture and fewer dry patches.
It’s also great before exfoliation or applying serums, as it helps products absorb better.
Bonus Benefit: Sauna sessions help reduce cortisol, your body’s stress hormone. Less stress = fewer breakouts and better skin recovery.
Ashes in the Sauna? Yes — and Here’s Why
Ashes in the sauna are part of a long-standing sauna ritual, especially in Nordic and Baltic countries.
Clean birch ash — left from burning untreated birch wood — is rich in minerals like potassium and magnesium, making it a natural and gentle skin treatment. When mixed with warm water, birch ash becomes a soft, gray paste that acts as a mild exfoliant.
It helps cleanse the skin, balance pH levels, and soothe dry or irritated spots — all without any added chemicals.
How to Try It: Mix 1 tablespoon of fine birch ash with warm water. Gently rub on your arms, back, or legs during your sauna session, then rinse off in the shower.
Ashes are Better Together
Ashes are better together when shared in the sauna. In traditional sauna culture, it’s common — even encouraged — to help each other apply the birch ash paste.

Whether between friends, family members, or couples, this simple act can turn a sauna session into a shared, meaningful experience.
Try This: After mixing your birch ash paste, ask your sauna partner if they’d like help applying it — especially on hard-to-reach areas. Then switch! Just make sure hands are clean and pressure is gentle.
This small gesture transforms the sauna from a solo ritual into something social, grounding, and memorable — a reminder that wellness isn’t only personal, but also communal.
Tips to Get the Most Sauna Skin Benefits
Tips to get the most sauna skin benefits include proper preparation, timing, and aftercare:
- Hydrate well before and after your session to avoid dry, tight skin.
- Skip makeup before entering the sauna — you want your pores clear.
- Use a dry brush before your session to remove dead skin.
- Limit sessions to 15–20 minutes, especially if you’re new.
- Moisturize afterward using a product with ceramides or hyaluronic acid.
- Pair with cold therapy (like a cool rinse or plunge) to tighten pores.
Try This: Take a before/after photo of your skin for a few sessions — you may be surprised how quickly your skin improves!
Who Should Be Careful?
Those who should be careful with sauna and skin care include anyone with conditions like eczema, rosacea, or very sensitive skin.
High heat and sweating may cause irritation or dryness if your skin barrier is already compromised.
People with cardiovascular issues or who are pregnant should also talk to a doctor first.
Avoid using the sauna after drinking alcohol, taking antihistamines, or applying strong skincare products like retinol — your skin might react more strongly.
Dry Sauna Skin Benefits
Dry sauna skin benefits you’ll love include clearer pores, softer texture, and a healthy, natural glow — all without synthetic ingredients.

Unlike steam rooms, dry saunas offer a consistent, high-heat environment that supports detox and skin purification through sweat.
The warmth also promotes relaxation, which helps with skin conditions linked to stress.
Add in natural tools like birch ash or a gentle scrub, and your sauna can easily become part of your weekly self-care routine.
FAQs About Sauna Skin Benefits
Does sauna help acne?
Yes. Sauna use can reduce acne by opening pores and flushing out oil, bacteria, and toxins. Just be sure to wash your face and moisturize afterward.
Can sauna detox your skin?
Yes. Sweating in a sauna encourages your body to release impurities through the skin, which supports a gentle sauna detox without harsh cleanses.
Does sauna make your skin glow?
Yes! The combination of deep sweating, increased circulation, and stress reduction gives you that fresh, sauna skin glow right after your session.
Should I moisturize after sauna?
Yes! Always apply a light, nourishing moisturizer post-sauna to lock in hydration and support skin repair.
Is birch ash safe for skin?
Yes, if it’s clean and natural. Birch ash is rich in minerals and works as a gentle, chemical-free exfoliator. Never use ash from treated or unknown wood.