While we know that the health benefits are countless, it is also important to consider the opposite, which reveals the negative effects of saunas and their excessive use on the skin. On the one hand, it is certain that the excess heat it provides is inherently beneficial for the skin and is one of the main reasons why a large percentage of people choose to do saunas.
At the same time, physically, the sauna allows for increased blood circulation. The heat causes blood vessels to dilate, increasing blood flow, which can give the skin a temporary, healthy glow. It also helps to cleanse pores, as sweating facilitates this process, reducing the possibility of blackheads and acne. There is also a better absorption of products: after using the sauna, the skin may be more sensitive to care, especially moisturizing serums.
In general, dermatologists tend to support sauna use as part of a skin care routine, as long as it's done properly and suited to your skin type. However, those with rosacea, active dermatitis, very dry or sensitive skin are advised against using a sauna without consulting a specialist.
It's also important not to overdo it. Excessive sauna use can cause dehydration and excessive sweating, which removes moisture from the skin, leading to dryness or damage to the barrier. In addition, there is a small risk of dilated capillaries, especially if you spend a lot of time inside the sauna.
With that in mind, dermatologists recommend one to three sauna sessions per week, which is generally enough for most people to notice benefits. In the short term, skin may appear brighter immediately after use due to increased blood circulation, while after two to four weeks of consistent use you may notice clearer pores, more hydrated skin, and a fading of acne.
However, it’s important to be careful with your post-session skincare routine. Proper hydration before and after your session plays a big role. When it comes to products, don’t forget to remove makeup and sunscreen, as these can trap heat or clog pores when mixed with sweat, and don’t use harsh exfoliants like AHAs, BHAs, or retinoids before or immediately after your session. Finally, regular sauna users should opt for moisturizers rich in ceramides or moisturizers that repair the skin’s barrier.
So, yes, the sauna is beneficial, but only if these tips are followed.