We put our fibres through the ultimate sweat test - and Kyle was the brave volunteer.
Most guys wonder the same thing when they first try hair fibres: what happens when you sweat?
To find out, Kyle from our “Kyle vs Hair Fibres” series took it to the extreme - locking in his style, then stepping straight into a 90-degree sauna.
“If they can survive this, they can survive anything,” Kyle said before heading in.
The Sauna Test
After applying Hair Guru London fibres with our applicator and locking spray, Kyle spent ten minutes in full heat and steam - no shortcuts.
The cameras captured every moment, from the first drop of sweat to the post-sauna mirror check.
The Result
Zero movement. Our cotton-based Hair Guru London fibres stayed completely undetectable - proof that even under intense heat, they hold like natural hair.
“I genuinely thought they’d melt off,” Kyle admitted. “But they didn’t move - still looked bang-on after.”
Watch the Full Challenge
🎥 Video: Kyle vs Hair Fibres – The Sauna Challenge