Visiting a sauna can bring pleasure and benefits to the body, but high temperatures and dry air have a noticeable impact on hair. Experts have analyzed what exactly happens to locks in the steam room and how to minimize potential damage.
The Main Impact of the Sauna on Hair
In the sauna, hair is subjected to a combination of high temperatures and dry air, which affects its structure and condition:
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Opening of the cuticle and moisture loss. Under the influence of heat, the outer scales of the hair (cuticle) open up, facilitating the loss of natural moisture and making the hair drier and more brittle.
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Extraction of natural oils. The dry heat pulls natural oils from the surface of the hair, leading to a loss of shine and softness.
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Accumulation of salts from sweat. Sweat, which contains salts and minerals, can disrupt the acid-base balance of the scalp and contribute to irritation.
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Vulnerability of chemically treated hair. Colored, bleached, or chemically treated locks are particularly sensitive to thermal stress and lose their structure more easily.
Potential Benefits of Moderate Sauna Use
Despite the risks, a sauna can have positive effects when approached sensibly:
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Improved blood circulation. Heat expands blood vessels, enhancing blood flow to the scalp, which improves the delivery of oxygen and nutrients to hair follicles.
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Cleansing of the scalp. Intense sweating helps remove dead skin cells, excess oil, and styling product residues, which is beneficial for scalp health.
How to Protect Hair in the Sauna
Experts recommend several simple ways to minimize hair damage when visiting a sauna:
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Use a protective headgear. A felt or wool sauna hat reduces exposure to hot air and helps retain the natural moisture of the hair.
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Apply oils or conditioners beforehand. A light layer of coconut oil, argan oil, or thermal protective conditioner creates a barrier and helps prevent moisture loss.
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Limit time spent. Sessions of no more than 10–20 minutes help reduce thermal stress on hair structures.
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Rinse hair after the sauna. A cool or warm shower after the steam room removes salt and sweat residues, as well as helps close the cuticle.
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Hydration and restoration. Using quality shampoos, conditioners, and masks after the sauna helps restore lost moisture and strengthen the locks.
The sauna is not an enemy of hair when used sensibly and with proper preparation. However, without protective measures, regular visits to the steam room can lead to dryness, brittleness, and loss of natural shine. By combining moderate sauna time with proper care before and after treatments, one can maintain the health and beauty of their locks.
