Pre- and Post-Sauna Routine: Full Instructions

Sauna has a history of several thousand years and originated in Finland. It is now popular all over the world. Whether it is dry sauna (Finnish Sauna), steam sauna (steam bath), or infrared sauna, regular sauna experiences have been proven to have multiple health benefits for the human body: promoting blood circulation, accelerating metabolism, deep detoxification, relieving muscle soreness, improving sleep quality, and even helping to reduce cardiovascular risks.

However, many people only focus on "taking a sauna itself", but overlook the equally crucial preparations before sauna and the post-sauna care. Incorrect methods not only significantly reduce the health effects but may also cause risks such as dehydration, low blood pressure, skin damage, and even heart discomfort.

This article will provide a scientific and practical complete guide from three major stages: what to do before sauna, precautions during sauna, and recovery care after sauna, for first-time experiencers and sauna enthusiasts.

What To Do Before a Sauna

Proper bathing preparation serves as the fundamental requirement for achieving secure and pleasant sauna experiences. The following essential points need to be remembered before entering the sauna.

Diet and Hydration - What to Eat and Drink Before Sauna?

The most essential sauna preparation requires people to maintain proper hydration levels. The human body experiences excessive sweating during sauna sessions which results in a water loss rate of up to 1 liter per hour. The body needs to establish its water reserves through the consumption of 300 to 500 milliliters of warm water or an electrolyte sports drink 30 to 60 minutes before entering the sauna.

• Avoid heavy eating within 2 hours before taking a bath. When you are full, your body's temperature regulation efficiency decreases and you are more likely to experience nausea.
• Fasting while taking a bath is also dangerous, as it may cause low blood sugar and dizziness. It is recommended to have a light meal 1-2 hours before entering the sauna.
• Strictly prohibit drinking alcohol before entering the sauna - alcohol dilates blood vessels and accelerates dehydration, significantly increasing the burden on the heart.
• Caffeinated beverages (coffee, strong tea) have a diuretic effect. It is best to stop consuming them 2 hours before entering the bath.

Recommended pre-sauna diet: Warm water, slightly salted water, coconut water, or a diluted sports drink can provide hydration while some easily digestible foods such as bananas, oatmeal, and yogurt can give energy.

Body and skin preparation - How to clean before entering the bath?

Before entering the sauna, it is recommended to take a warm bath first. A warm bath can help the body gradually adapt to the high temperature and also open the pores, making the detoxification effect of the sauna more significant. Be careful not to take a hot water shower as this may cause your body temperature to be too high before entering the sauna.

• Remove makeup and remove contact lenses - High temperatures accelerate the penetration of chemical components in cosmetics, and contact lenses may deform in a hot and dry environment, damaging the cornea.
• Remove all metal accessories, including earrings, necklaces, and watches - Metals have strong heat conductivity and are prone to burning the skin when exposed to high temperatures.
• It is not recommended to apply skin care products or sunscreen before taking a bath, as the pores are open and the ingredients are more likely to be absorbed in large quantities.
• For those with long hair, it is recommended to tie it up to avoid excessive evaporation of wet hair in high temperatures, which could damage the scalp.

Special groups - Do not take a bath under these circumstances

Sauna is not suitable for everyone. For the following groups, it is recommended to consult a doctor before taking a sauna, or to avoid it altogether:

• Patients with hypertension and heart disease - Sauna can cause significant fluctuations in heart rate and blood pressure.
• Pregnant women - High temperature may affect fetal development, especially during the early stages of pregnancy.
• Patients with low blood pressure - They are prone to fainting in high temperatures.
• Those with open wounds, infections or acute inflammations on the skin
• During fever or acute cold
• Those who have recently undergone surgery or are in the recovery period

Important Notice

If you have any chronic diseases or are taking any medications, please consult your doctor's advice before undergoing a sauna session.

Precautions in Saunas

There are also important points to consider when using a sauna correctly. Many people harm their health due to staying in the sauna for too long or using improper posture.

Duration suggestions

For first-time users of the sauna, it is recommended that the single session duration does not exceed 10-15 minutes. Experienced users can extend it to 15-20 minutes, but it is not recommended to exceed 20 minutes per session. The total time for "interval sauna" usage, which includes bathing and cooling and re-bathing, must not go beyond three cycles.

• If you feel chest tightness, dizziness, or abnormal acceleration of your heart rate in the sauna room, you should immediately leave.
• Seat selection: The closer to the ground, the lower the temperature. For first-time bathers, it is recommended to choose a lower position.
• It is recommended to lie down or sit, avoiding sudden standing up to prevent a sudden drop in blood pressure and causing fainting.

Dry sauna vs. Wet sauna

Dry sauna (Finns-style) operates at temperatures between 80 to 100°C while maintaining humidity levels between 10 to 20%. The dry sauna environment presents hotter conditions which complicate the body's natural process of temperature control. The wet sauna environment maintains a temperature range of 40 to 55°C while sustaining humidity levels at approximately 100%. The product provides mild respiratory tract hydration which benefits individuals who suffer from chronic rhinitis or breathing difficulties.

Hydrating during a sauna

You can drink a small amount of warm water in the outdoor rest area of the sauna, but it is not recommended to drink cold drinks in the hot bathroom, as the temperature difference may cause stomach discomfort.

What To Do After a Sauna

The recovery period after a sauna is often overlooked, but it directly determines skin health, the speed of physical recovery, and the overall experience. Here are the three most important steps after a sauna:

Cooling down - The correct way to cool down

After leaving the sauna room, you should not take a cold shower or enter a cold pool. The correct procedure requires individuals to stay in a room temperature setting for 5 to 10 minutes until their heart rate achieves partial recovery, after which they should begin the cooling process.

• Mild cooling: First rinse with room temperature water, then gradually transition to cold water or cold water, allowing the blood vessels time to constrict and adapt.
• Cold heat alternation therapy (Contrast Therapy): Experienced individuals can perform alternating cycles of cold baths and saunas, which can help enhance immunity and promote blood circulation.
• Avoid sudden cooling: Exposure to extremely cold water suddenly may trigger the risk of cardiac arrest, especially for the elderly and those with heart diseases.
• Outdoor cooling: Walking for 5-10 minutes in the cool outdoor air is also an excellent cooling method.

Recommended Cooling Procedure

The user may restart → Acclimatize at room temperature for 5 minutes → Get Shower using warm water for 2 minutes → Finally, Shower with cool water for 1 minute → Replenish fluids. The limit of cycles have thought to be 3 or less.

Hydration and Diet - What to Eat After a Sauna?

It is of utmost importance to replenish the lost water and electrolytes immediately after a sauna. It is recommended to consume at least 500ml of liquid within 30 minutes after getting out of the sauna.

• Preferred options: Electrolyte-containing sports drinks, coconut water, and light salt water - quickly replenish lost minerals such as sodium, potassium, and magnesium.
• Warm water or room temperature water is also acceptable. Avoid cold water as it can irritate the stomach.
• Light foods are suitable for recovery after a sauna, such as fruits, yogurt, nuts, and whole grain bread - foods that are easy to digest.
• Avoid drinking alcohol within 1 hour after a sauna - at this time, blood vessels expand and alcohol absorption is faster, putting a heavy burden on the heart and liver.
• Avoid eating a large amount of greasy food immediately - the digestive system needs time to recover after high temperatures.

Skin Care - How to Hydrate After Sauna?

Sauna opens the pores deeply, making it a golden window period for skin care. However, it also means that the skin barrier temporarily weakens, making it easier for moisture to be lost.

• After getting out of the sauna, gently cleanse your face with a mild cleanser (without fragrance or alcohol)
• Apply a moisturizing lotion or essence on your skin while it is still slightly damp (within 3-5 minutes after getting out of the sauna) to lock in the moisture
• Extra moisturizing products are needed for delicate areas such as lips and eyes
• Avoid using products containing acids (like salicylic acid, alpha-hydroxy acids), alcohol, or high-concentration retinoids immediately after sauna, as the penetrating ability of irritating ingredients is stronger when the pores are open, which may cause skin allergies
• If exfoliation was done (before or during sauna), you need to apply more moisturizer after getting out of the sauna and do sun protection (if going out during the day)

Three-Step Skincare Routine After a Sauna

①Gentle Cleanse → ② Moisturizing Serum or Mask (Double the Effect When Pores Are Open) → ③ Moisturizing Lotion to Lock in Moisture. Note: Avoid products with high concentrations of active ingredients.

Sauna Before and After Comparison Table

The following table summarizes key points before and after a sauna for quick reference:

Item	Before sauna	After sauna
Drinking water	Drink 300-500ml of water 30 minutes in advance	Immediately replenish electrolyte water or warm water
Diet	Avoid heavy meals, light food is best	Have light food to recover, avoid greasy food
Exercise	You can do mild stretching as a warm-up	It is recommended to rest and avoid strenuous exercise
Skin	Remove makeup and remove contact lenses	Gently moisturize, avoid irritating skin care products
Drinking alcohol	Strictly prohibited	Avoid doing any activities for at least 1 hour after sauna
Time	Enter the sauna 15 minutes after the bath	After getting out of the sauna, sit still for cooling for 10-15 minutes

 

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