Science
Science-backed insights on sauna, recovery, and athletic performance.
Why Do You Need a Sauna Hat? The Science of Head Temperature
The sauna hat looks like the kind of thing a marketing department invented. A wool hat you wear indoors, in a hot room, on...
Why Do You Need a Sauna Hat? The Science Behind Staying In Longer
The short answer: You need a sauna hat because your head is the weakest link in any sauna protocol. Air temperature at the top...
Does Sauna Damage Hair? How to Protect Your Hair in the Heat
The short answer: A single sauna session at 80–100°C is unlikely to cause permanent hair damage in a healthy adult with untreated hair. The...
Why Your Head Is the Enemy in a Sauna — And How a Sauna Hat Changes That
Picture a familiar scene. You are eleven minutes into a sauna at 88°C. The temperature is right. The timber is warm. Your body, by...
Protecting Your Hair in the Heat: The Sauna Hat Edition
The short answer: Sauna heat above 80°C damages hair by stripping moisture from the cuticle layer, weakening keratin bonds, and increasing breakage. A wool...
The Science Behind the Sauna Hat: What the Research Says
The short answer: The science behind sauna hats centres on thermal stratification and hypothalamic thermoregulation. Air at the ceiling of a sauna sits 10–15°C...
How to Choose the Right Sauna Hat: Materials, Fit & Style
The short answer: Choose a sauna hat made from 100% wool, ideally merino, with a thickness of 4–6mm. Wool insulates at temperatures above 80°C...
Sauna Hat vs No Hat: How Your Head Temperature Impacts Sauna Performance
The short answer: head temperature science is the limiting factor in sauna performance, not core body temperature. Air stratifies sharply inside a sauna, with...
